#include <afsconfig.h>
#include "afs/param.h"
-RCSID("$Header$");
+RCSID
+ ("$Header$");
-#include "afs/sysincludes.h" /*Standard vendor system headers*/
-#include "afsincludes.h" /*AFS-based standard headers*/
-#include "afs/afs_stats.h" /* statistics */
+#include "afs/sysincludes.h" /*Standard vendor system headers */
+#include "afsincludes.h" /*AFS-based standard headers */
+#include "afs/afs_stats.h" /* statistics */
#include "afs/afs_cbqueue.h"
#include "afs/afs_osidnlc.h"
/*
* --------------------- Exported definitions ---------------------
*/
-afs_lock_t afs_xdcache; /*Lock: alloc new disk cache entries*/
-afs_int32 afs_freeDCList; /*Free list for disk cache entries*/
-afs_int32 afs_freeDCCount; /*Count of elts in freeDCList*/
-afs_int32 afs_discardDCList; /*Discarded disk cache entries*/
-afs_int32 afs_discardDCCount; /*Count of elts in discardDCList*/
-struct dcache *afs_freeDSList; /*Free list for disk slots */
-struct dcache *afs_Initial_freeDSList; /*Initial list for above*/
-ino_t cacheInode; /*Inode for CacheItems file*/
+afs_lock_t afs_xdcache; /*Lock: alloc new disk cache entries */
+afs_int32 afs_freeDCList; /*Free list for disk cache entries */
+afs_int32 afs_freeDCCount; /*Count of elts in freeDCList */
+afs_int32 afs_discardDCList; /*Discarded disk cache entries */
+afs_int32 afs_discardDCCount; /*Count of elts in discardDCList */
+struct dcache *afs_freeDSList; /*Free list for disk slots */
+struct dcache *afs_Initial_freeDSList; /*Initial list for above */
+ino_t cacheInode; /*Inode for CacheItems file */
struct osi_file *afs_cacheInodep = 0; /* file for CacheItems inode */
-struct afs_q afs_DLRU; /*dcache LRU*/
+struct afs_q afs_DLRU; /*dcache LRU */
afs_int32 afs_dhashsize = 1024;
-afs_int32 *afs_dvhashTbl; /*Data cache hash table*/
-afs_int32 *afs_dchashTbl; /*Data cache hash table*/
-afs_int32 *afs_dvnextTbl; /*Dcache hash table links */
-afs_int32 *afs_dcnextTbl; /*Dcache hash table links */
-struct dcache **afs_indexTable; /*Pointers to dcache entries*/
-afs_hyper_t *afs_indexTimes; /*Dcache entry Access times*/
-afs_int32 *afs_indexUnique; /*dcache entry Fid.Unique */
-unsigned char *afs_indexFlags; /*(only one) Is there data there?*/
-afs_hyper_t afs_indexCounter; /*Fake time for marking index
- entries*/
-afs_int32 afs_cacheFiles =0; /*Size of afs_indexTable*/
-afs_int32 afs_cacheBlocks; /*1K blocks in cache*/
-afs_int32 afs_cacheStats; /*Stat entries in cache*/
-afs_int32 afs_blocksUsed; /*Number of blocks in use*/
-afs_int32 afs_blocksDiscarded; /*Blocks freed but not truncated */
-afs_int32 afs_fsfragsize = 1023; /*Underlying Filesystem minimum unit
+afs_int32 *afs_dvhashTbl; /*Data cache hash table */
+afs_int32 *afs_dchashTbl; /*Data cache hash table */
+afs_int32 *afs_dvnextTbl; /*Dcache hash table links */
+afs_int32 *afs_dcnextTbl; /*Dcache hash table links */
+struct dcache **afs_indexTable; /*Pointers to dcache entries */
+afs_hyper_t *afs_indexTimes; /*Dcache entry Access times */
+afs_int32 *afs_indexUnique; /*dcache entry Fid.Unique */
+unsigned char *afs_indexFlags; /*(only one) Is there data there? */
+afs_hyper_t afs_indexCounter; /*Fake time for marking index
+ * entries */
+afs_int32 afs_cacheFiles = 0; /*Size of afs_indexTable */
+afs_int32 afs_cacheBlocks; /*1K blocks in cache */
+afs_int32 afs_cacheStats; /*Stat entries in cache */
+afs_int32 afs_blocksUsed; /*Number of blocks in use */
+afs_int32 afs_blocksDiscarded; /*Blocks freed but not truncated */
+afs_int32 afs_fsfragsize = 1023; /*Underlying Filesystem minimum unit
*of disk allocation usually 1K
*this value is (truefrag -1 ) to
*save a bunch of subtracts... */
#ifdef AFS_64BIT_CLIENT
#ifdef AFS_VM_RDWR_ENV
-afs_size_t afs_vmMappingEnd; /* for large files (>= 2GB) the VM
- * mapping an 32bit addressing machines
- * can only be used below the 2 GB
- * line. From this point upwards we
- * must do direct I/O into the cache
- * files. The value should be on a
- * chunk boundary. */
+afs_size_t afs_vmMappingEnd; /* for large files (>= 2GB) the VM
+ * mapping an 32bit addressing machines
+ * can only be used below the 2 GB
+ * line. From this point upwards we
+ * must do direct I/O into the cache
+ * files. The value should be on a
+ * chunk boundary. */
#endif /* AFS_VM_RDWR_ENV */
#endif /* AFS_64BIT_CLIENT */
int afs_TruncateDaemonRunning = 0;
int afs_CacheTooFull = 0;
-afs_int32 afs_dcentries; /* In-memory dcache entries */
+afs_int32 afs_dcentries; /* In-memory dcache entries */
int dcacheDisabled = 0;
-extern struct dcache *afs_UFSGetDSlot();
-extern struct volume *afs_UFSGetVolSlot();
-extern int osi_UFSTruncate(), afs_osi_Read(), afs_osi_Write(), osi_UFSClose();
-extern int afs_UFSRead(), afs_UFSWrite();
-extern int afs_UFSHandleLink();
static int afs_UFSCacheFetchProc(), afs_UFSCacheStoreProc();
struct afs_cacheOps afs_UfsCacheOps = {
osi_UFSOpen,
afs_MemHandleLink,
};
-int cacheDiskType; /*Type of backing disk for cache*/
+int cacheDiskType; /*Type of backing disk for cache */
struct afs_cacheOps *afs_cacheType;
* Call this from close call when vnodeops is RCS unlocked.
*/
-void afs_StoreWarn(register afs_int32 acode, afs_int32 avolume, register afs_int32 aflags)
+void
+afs_StoreWarn(register afs_int32 acode, afs_int32 avolume,
+ register afs_int32 aflags)
{
static char problem_fmt[] =
"afs: failed to store file in volume %d (%s)\n";
static char problem_fmt_w_error[] =
"afs: failed to store file in volume %d (error %d)\n";
static char netproblems[] = "network problems";
- static char partfull[] = "partition full";
- static char overquota[] = "over quota";
+ static char partfull[] = "partition full";
+ static char overquota[] = "over quota";
AFS_STATCNT(afs_StoreWarn);
if (acode < 0) {
- /*
+ /*
* Network problems
*/
- if (aflags & 1)
+ if (aflags & 1)
afs_warn(problem_fmt, avolume, netproblems);
- if (aflags & 2)
+ if (aflags & 2)
afs_warnuser(problem_fmt, avolume, netproblems);
- }
- else
- if (acode == ENOSPC) {
- /*
- * Partition full
- */
- if (aflags & 1)
- afs_warn(problem_fmt, avolume, partfull);
- if (aflags & 2)
- afs_warnuser(problem_fmt, avolume, partfull);
- }
- else
-#ifndef AFS_SUN5_ENV
- /* EDQUOT doesn't exist on solaris and won't be sent by the server.
- * Instead ENOSPC will be sent...
- */
- if (acode == EDQUOT) {
- /*
- * Quota exceeded
- */
- if (aflags & 1)
- afs_warn(problem_fmt, avolume, overquota);
- if (aflags & 2)
- afs_warnuser(problem_fmt, avolume, overquota);
- } else
+ } else if (acode == ENOSPC) {
+ /*
+ * Partition full
+ */
+ if (aflags & 1)
+ afs_warn(problem_fmt, avolume, partfull);
+ if (aflags & 2)
+ afs_warnuser(problem_fmt, avolume, partfull);
+ } else
+#ifdef EDQUOT
+ /* EDQUOT doesn't exist on solaris and won't be sent by the server.
+ * Instead ENOSPC will be sent...
+ */
+ if (acode == EDQUOT) {
+ /*
+ * Quota exceeded
+ */
+ if (aflags & 1)
+ afs_warn(problem_fmt, avolume, overquota);
+ if (aflags & 2)
+ afs_warnuser(problem_fmt, avolume, overquota);
+ } else
#endif
- {
- /*
- * Unknown error
- */
- if (aflags & 1)
- afs_warn(problem_fmt_w_error, avolume, acode);
- if (aflags & 2)
- afs_warnuser(problem_fmt_w_error, avolume, acode);
- }
-} /*afs_StoreWarn*/
+ {
+ /*
+ * Unknown error
+ */
+ if (aflags & 1)
+ afs_warn(problem_fmt_w_error, avolume, acode);
+ if (aflags & 2)
+ afs_warnuser(problem_fmt_w_error, avolume, acode);
+ }
+} /*afs_StoreWarn */
-void afs_MaybeWakeupTruncateDaemon(void)
+void
+afs_MaybeWakeupTruncateDaemon(void)
{
if (!afs_CacheTooFull && afs_CacheIsTooFull()) {
afs_CacheTooFull = 1;
if (!afs_TruncateDaemonRunning)
afs_osi_Wakeup((int *)afs_CacheTruncateDaemon);
- } else if (!afs_TruncateDaemonRunning &&
- afs_blocksDiscarded > CM_MAXDISCARDEDCHUNKS) {
+ } else if (!afs_TruncateDaemonRunning
+ && afs_blocksDiscarded > CM_MAXDISCARDEDCHUNKS) {
afs_osi_Wakeup((int *)afs_CacheTruncateDaemon);
}
}
} CTD_stats;
u_int afs_min_cache = 0;
-void afs_CacheTruncateDaemon(void)
+void
+afs_CacheTruncateDaemon(void)
{
osi_timeval_t CTD_tmpTime;
u_int counter;
u_int cb_lowat;
- u_int dc_hiwat = (100-CM_DCACHECOUNTFREEPCT+CM_DCACHEEXTRAPCT)*afs_cacheFiles/100;
- afs_min_cache = (((10 * AFS_CHUNKSIZE(0)) + afs_fsfragsize) & ~afs_fsfragsize)>>10;
+ u_int dc_hiwat =
+ (100 - CM_DCACHECOUNTFREEPCT +
+ CM_DCACHEEXTRAPCT) * afs_cacheFiles / 100;
+ afs_min_cache =
+ (((10 * AFS_CHUNKSIZE(0)) + afs_fsfragsize) & ~afs_fsfragsize) >> 10;
osi_GetuTime(&CTD_stats.CTD_afterSleep);
afs_TruncateDaemonRunning = 1;
while (1) {
- cb_lowat = ((CM_DCACHESPACEFREEPCT-CM_DCACHEEXTRAPCT)
- * afs_cacheBlocks) / 100;
- MObtainWriteLock(&afs_xdcache,266);
+ cb_lowat = ((CM_DCACHESPACEFREEPCT - CM_DCACHEEXTRAPCT)
+ * afs_cacheBlocks) / 100;
+ MObtainWriteLock(&afs_xdcache, 266);
if (afs_CacheTooFull) {
- int space_needed, slots_needed;
+ int space_needed, slots_needed;
/* if we get woken up, we should try to clean something out */
for (counter = 0; counter < 10; counter++) {
- space_needed = afs_blocksUsed - afs_blocksDiscarded - cb_lowat;
- slots_needed = dc_hiwat - afs_freeDCCount - afs_discardDCCount;
- afs_GetDownD(slots_needed, &space_needed);
+ space_needed =
+ afs_blocksUsed - afs_blocksDiscarded - cb_lowat;
+ slots_needed =
+ dc_hiwat - afs_freeDCCount - afs_discardDCCount;
+ afs_GetDownD(slots_needed, &space_needed);
if ((space_needed <= 0) && (slots_needed <= 0)) {
break;
}
* any cache files then give up the global lock so other
* threads get a chance to run.
*/
- if ((afs_termState!=AFSOP_STOP_TRUNCDAEMON) && afs_CacheTooFull &&
- (!afs_blocksDiscarded || afs_WaitForCacheDrain)) {
- afs_osi_Wait(100, 0, 0); /* 100 milliseconds */
+ if ((afs_termState != AFSOP_STOP_TRUNCDAEMON) && afs_CacheTooFull
+ && (!afs_blocksDiscarded || afs_WaitForCacheDrain)) {
+ afs_osi_Wait(100, 0, 0); /* 100 milliseconds */
}
/*
* This is where we free the discarded cache elements.
*/
- while(afs_blocksDiscarded && !afs_WaitForCacheDrain &&
- (afs_termState!=AFSOP_STOP_TRUNCDAEMON))
- {
+ while (afs_blocksDiscarded && !afs_WaitForCacheDrain
+ && (afs_termState != AFSOP_STOP_TRUNCDAEMON)) {
afs_FreeDiscardedDCache();
}
/* See if we need to continue to run. Someone may have
* signalled us while we were executing.
*/
- if (!afs_WaitForCacheDrain && !afs_CacheTooFull &&
- (afs_termState!=AFSOP_STOP_TRUNCDAEMON))
- {
+ if (!afs_WaitForCacheDrain && !afs_CacheTooFull
+ && (afs_termState != AFSOP_STOP_TRUNCDAEMON)) {
/* Collect statistics on truncate daemon. */
CTD_stats.CTD_nSleeps++;
osi_GetuTime(&CTD_stats.CTD_beforeSleep);
afs_stats_AddTo(CTD_stats.CTD_runTime, CTD_tmpTime);
afs_TruncateDaemonRunning = 0;
- afs_osi_Sleep((int *)afs_CacheTruncateDaemon);
+ afs_osi_Sleep((int *)afs_CacheTruncateDaemon);
afs_TruncateDaemonRunning = 1;
osi_GetuTime(&CTD_stats.CTD_afterSleep);
* anewsize : New size desired.
*/
-void afs_AdjustSize(register struct dcache *adc, register afs_int32 newSize)
+void
+afs_AdjustSize(register struct dcache *adc, register afs_int32 newSize)
{
register afs_int32 oldSize;
AFS_STATCNT(afs_AdjustSize);
adc->dflags |= DFEntryMod;
- oldSize = ((adc->f.chunkBytes + afs_fsfragsize)^afs_fsfragsize)>>10;/* round up */
+ oldSize = ((adc->f.chunkBytes + afs_fsfragsize) ^ afs_fsfragsize) >> 10; /* round up */
adc->f.chunkBytes = newSize;
- newSize = ((newSize + afs_fsfragsize)^afs_fsfragsize)>>10;/* round up */
+ if (!newSize)
+ adc->validPos = 0;
+ newSize = ((newSize + afs_fsfragsize) ^ afs_fsfragsize) >> 10; /* round up */
if (newSize > oldSize) {
/* We're growing the file, wakeup the daemon */
afs_MaybeWakeupTruncateDaemon();
*/
#define MAXATONCE 16 /* max we can obtain at once */
-static void afs_GetDownD(int anumber, int *aneedSpace)
+static void
+afs_GetDownD(int anumber, int *aneedSpace)
{
struct dcache *tdc;
register struct vcache *tvc;
afs_uint32 victims[MAXATONCE];
struct dcache *victimDCs[MAXATONCE];
- afs_hyper_t victimTimes[MAXATONCE];/* youngest (largest LRU time) first */
- afs_uint32 victimPtr; /* next free item in victim arrays */
- afs_hyper_t maxVictimTime; /* youngest (largest LRU time) victim */
- afs_uint32 maxVictimPtr; /* where it is */
+ afs_hyper_t victimTimes[MAXATONCE]; /* youngest (largest LRU time) first */
+ afs_uint32 victimPtr; /* next free item in victim arrays */
+ afs_hyper_t maxVictimTime; /* youngest (largest LRU time) victim */
+ afs_uint32 maxVictimPtr; /* where it is */
int discard;
AFS_STATCNT(afs_GetDownD);
* because we should try to free space even if anumber <=0 */
if (!aneedSpace || *aneedSpace <= 0) {
anumber -= afs_freeDCCount;
- if (anumber <= 0) return; /* enough already free */
+ if (anumber <= 0)
+ return; /* enough already free */
}
/* bounds check parameter */
- if (anumber > MAXATONCE)
- anumber = MAXATONCE; /* all we can do */
+ if (anumber > MAXATONCE)
+ anumber = MAXATONCE; /* all we can do */
/*
* The phase variable manages reclaims. Set to 0, the first pass,
/* turn off all flags */
afs_indexFlags[i] &= ~IFFlag;
- while (anumber > 0 || (aneedSpace && *aneedSpace >0)) {
+ while (anumber > 0 || (aneedSpace && *aneedSpace > 0)) {
/* find oldest entries for reclamation */
maxVictimPtr = victimPtr = 0;
hzero(maxVictimTime);
/* select victims from access time array */
for (i = 0; i < afs_cacheFiles; i++) {
if (afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded)) {
- /* skip if dirty or already free */
- continue;
+ /* skip if dirty or already free */
+ continue;
}
tdc = afs_indexTable[i];
if (tdc && (tdc->refCount != 0)) {
- /* Referenced; can't use it! */
- continue;
+ /* Referenced; can't use it! */
+ continue;
}
hset(vtime, afs_indexTimes[i]);
/* if we've already looked at this one, skip it */
- if (afs_indexFlags[i] & IFFlag) continue;
+ if (afs_indexFlags[i] & IFFlag)
+ continue;
if (victimPtr < MAXATONCE) {
/* if there's at least one free victim slot left */
maxVictimPtr = victimPtr;
}
victimPtr++;
- }
- else if (hcmp(vtime, maxVictimTime) < 0) {
+ } else if (hcmp(vtime, maxVictimTime) < 0) {
/*
* We're older than youngest victim, so we replace at
* least one victim
*/
/* find youngest (largest LRU) victim */
- j = maxVictimPtr;
- if (j == victimPtr) osi_Panic("getdownd local");
+ j = maxVictimPtr;
+ if (j == victimPtr)
+ osi_Panic("getdownd local");
victims[j] = i;
hset(victimTimes[j], vtime);
/* recompute maxVictimTime */
hset(maxVictimTime, vtime);
- for(j = 0; j < victimPtr; j++)
+ for (j = 0; j < victimPtr; j++)
if (hcmp(maxVictimTime, victimTimes[j]) < 0) {
hset(maxVictimTime, victimTimes[j]);
maxVictimPtr = j;
}
}
- } /* big for loop */
+ } /* big for loop */
/* now really reclaim the victims */
- j = 0; /* flag to track if we actually got any of the victims */
+ j = 0; /* flag to track if we actually got any of the victims */
/* first, hold all the victims, since we're going to release the lock
* during the truncate operation.
*/
- for(i=0; i < victimPtr; i++) {
+ for (i = 0; i < victimPtr; i++) {
tdc = afs_GetDSlot(victims[i], 0);
/* We got tdc->tlock(R) here */
if (tdc->refCount == 1)
else
victimDCs[i] = 0;
ReleaseReadLock(&tdc->tlock);
- if (!victimDCs[i]) afs_PutDCache(tdc);
+ if (!victimDCs[i])
+ afs_PutDCache(tdc);
}
- for(i = 0; i < victimPtr; i++) {
+ for (i = 0; i < victimPtr; i++) {
/* q is first elt in dcache entry */
tdc = victimDCs[i];
/* now, since we're dropping the afs_xdcache lock below, we
*/
if (tdc && tdc->refCount == 1) {
unsigned char chunkFlags;
- afs_size_t tchunkoffset;
- afid = &tdc->f.fid;
+ afs_size_t tchunkoffset = 0;
+ afid = &tdc->f.fid;
/* xdcache is lower than the xvcache lock */
MReleaseWriteLock(&afs_xdcache);
MObtainReadLock(&afs_xvcache);
MReleaseReadLock(&afs_xvcache);
MObtainWriteLock(&afs_xdcache, 527);
skip = 0;
- if (tdc->refCount > 1) skip = 1;
+ if (tdc->refCount > 1)
+ skip = 1;
if (tvc) {
tchunkoffset = AFS_CHUNKTOBASE(tdc->f.chunk);
chunkFlags = afs_indexFlags[tdc->index];
- if (phase == 0 && osi_Active(tvc)) skip = 1;
- if (phase > 0 && osi_Active(tvc) && (tvc->states & CDCLock)
- && (chunkFlags & IFAnyPages)) skip = 1;
- if (chunkFlags & IFDataMod) skip = 1;
+ if (phase == 0 && osi_Active(tvc))
+ skip = 1;
+ if (phase > 0 && osi_Active(tvc)
+ && (tvc->states & CDCLock)
+ && (chunkFlags & IFAnyPages))
+ skip = 1;
+ if (chunkFlags & IFDataMod)
+ skip = 1;
afs_Trace4(afs_iclSetp, CM_TRACE_GETDOWND,
ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32, skip,
- ICL_TYPE_INT32, tdc->index,
- ICL_TYPE_OFFSET,
+ ICL_TYPE_INT32, tdc->index, ICL_TYPE_OFFSET,
ICL_HANDLE_OFFSET(tchunkoffset));
#if defined(AFS_SUN5_ENV)
/* One last recheck */
MObtainWriteLock(&afs_xdcache, 333);
chunkFlags = afs_indexFlags[tdc->index];
- if (tdc->refCount > 1
- || (chunkFlags & IFDataMod)
+ if (tdc->refCount > 1 || (chunkFlags & IFDataMod)
|| (osi_Active(tvc) && (tvc->states & CDCLock)
- && (chunkFlags & IFAnyPages))) {
+ && (chunkFlags & IFAnyPages))) {
skip = 1;
MReleaseWriteLock(&afs_xdcache);
goto endputpage;
code = osi_VM_GetDownD(tvc, tdc);
- MObtainWriteLock(&afs_xdcache,269);
+ MObtainWriteLock(&afs_xdcache, 269);
/* we actually removed all pages, clean and dirty */
if (code == 0) {
- afs_indexFlags[tdc->index] &= ~(IFDirtyPages| IFAnyPages);
+ afs_indexFlags[tdc->index] &=
+ ~(IFDirtyPages | IFAnyPages);
} else
skip = 1;
MReleaseWriteLock(&afs_xdcache);
-endputpage:
+ endputpage:
MObtainWriteLock(&tvc->vlock, 544);
- if (--tvc->activeV == 0 && (tvc->vstates & VRevokeWait)) {
+ if (--tvc->activeV == 0
+ && (tvc->vstates & VRevokeWait)) {
tvc->vstates &= ~VRevokeWait;
afs_osi_Wakeup((char *)&tvc->vstates);
tvc->vstates &= ~VPageCleaning;
afs_osi_Wakeup((char *)&tvc->vstates);
}
-endmultipage:
+ endmultipage:
MReleaseWriteLock(&tvc->vlock);
} else
-#endif /* AFS_SUN5_ENV */
+#endif /* AFS_SUN5_ENV */
{
MReleaseWriteLock(&afs_xdcache);
}
AFS_FAST_RELE(tvc);
MObtainWriteLock(&afs_xdcache, 528);
if (afs_indexFlags[tdc->index] &
- (IFDataMod | IFDirtyPages | IFAnyPages)) skip = 1;
- if (tdc->refCount > 1) skip = 1;
+ (IFDataMod | IFDirtyPages | IFAnyPages))
+ skip = 1;
+ if (tdc->refCount > 1)
+ skip = 1;
}
#if defined(AFS_SUN5_ENV)
else {
* Hold vcache lock to prevent vnode from being
* created while we're clearing IFDirtyPages.
*/
- afs_indexFlags[tdc->index] &= ~(IFDirtyPages | IFAnyPages);
+ afs_indexFlags[tdc->index] &=
+ ~(IFDirtyPages | IFAnyPages);
}
#endif
if (skip) {
afs_indexFlags[tdc->index] |= IFFlag;
afs_Trace4(afs_iclSetp, CM_TRACE_GETDOWND,
ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32, 2,
- ICL_TYPE_INT32, tdc->index,
- ICL_TYPE_OFFSET,
+ ICL_TYPE_INT32, tdc->index, ICL_TYPE_OFFSET,
ICL_HANDLE_OFFSET(tchunkoffset));
- }
- else {
+ } else {
/* flush this dude from the data cache and reclaim;
- * first, make sure no one will care that we damage
- * it, by removing it from all hash tables. Then,
- * melt it down for parts. Note that any concurrent
- * (new possibility!) calls to GetDownD won't touch
- * this guy because his reference count is > 0. */
+ * first, make sure no one will care that we damage
+ * it, by removing it from all hash tables. Then,
+ * melt it down for parts. Note that any concurrent
+ * (new possibility!) calls to GetDownD won't touch
+ * this guy because his reference count is > 0. */
afs_Trace4(afs_iclSetp, CM_TRACE_GETDOWND,
ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32, 3,
- ICL_TYPE_INT32, tdc->index,
- ICL_TYPE_OFFSET,
+ ICL_TYPE_INT32, tdc->index, ICL_TYPE_OFFSET,
ICL_HANDLE_OFFSET(tchunkoffset));
#ifndef AFS_DEC_ENV
AFS_STATCNT(afs_gget);
if (tdc->f.chunkBytes != 0) {
discard = 1;
if (aneedSpace)
- *aneedSpace -= (tdc->f.chunkBytes + afs_fsfragsize) >> 10;
+ *aneedSpace -=
+ (tdc->f.chunkBytes + afs_fsfragsize) >> 10;
} else {
discard = 0;
}
}
afs_PutDCache(tdc);
}
-
+
if (phase == 0) {
/* Phase is 0 and no one was found, so try phase 1 (ignore
* osi_Active flag) */
/* turn off all flags */
afs_indexFlags[i] &= ~IFFlag;
}
- }
- else {
+ } else {
/* found no one in phase 1, we're hosed */
- if (victimPtr == 0) break;
+ if (victimPtr == 0)
+ break;
}
- } /* big while loop */
+ } /* big while loop */
return;
-} /*afs_GetDownD*/
+} /*afs_GetDownD */
/*
*
* Locks: Must have the afs_xdcache lock write-locked to call this function.
*/
-int afs_HashOutDCache(struct dcache *adc)
+int
+afs_HashOutDCache(struct dcache *adc)
{
int i, us;
AFS_STATCNT(afs_glink);
#endif
/* we know this guy's in the LRUQ. We'll move dude into DCQ below */
- DZap(&adc->f.inode);
+ DZap(adc);
/* if this guy is in the hash table, pull him out */
if (adc->f.fid.Fid.Volume != 0) {
/* remove entry from first hash chains */
if (us == adc->index) {
/* first dude in the list */
afs_dchashTbl[i] = afs_dcnextTbl[adc->index];
- }
- else {
+ } else {
/* somewhere on the chain */
while (us != NULLIDX) {
if (afs_dcnextTbl[us] == adc->index) {
}
us = afs_dcnextTbl[us];
}
- if (us == NULLIDX) osi_Panic("dcache hc");
+ if (us == NULLIDX)
+ osi_Panic("dcache hc");
}
/* remove entry from *other* hash chain */
i = DVHash(&adc->f.fid);
if (us == adc->index) {
/* first dude in the list */
afs_dvhashTbl[i] = afs_dvnextTbl[adc->index];
- }
- else {
+ } else {
/* somewhere on the chain */
while (us != NULLIDX) {
if (afs_dvnextTbl[us] == adc->index) {
}
us = afs_dvnextTbl[us];
}
- if (us == NULLIDX) osi_Panic("dcache hv");
+ if (us == NULLIDX)
+ osi_Panic("dcache hv");
}
}
/* all done */
return 0;
-} /*afs_HashOutDCache */
+} /*afs_HashOutDCache */
/*
* (in write mode)
*/
-void afs_FlushDCache(register struct dcache *adc)
+void
+afs_FlushDCache(register struct dcache *adc)
{
AFS_STATCNT(afs_FlushDCache);
/*
if (afs_WaitForCacheDrain) {
if (afs_blocksUsed <=
- (CM_CACHESIZEDRAINEDPCT*afs_cacheBlocks)/100) {
+ (CM_CACHESIZEDRAINEDPCT * afs_cacheBlocks) / 100) {
afs_WaitForCacheDrain = 0;
afs_osi_Wakeup(&afs_WaitForCacheDrain);
}
}
-} /*afs_FlushDCache*/
+} /*afs_FlushDCache */
/*
*
* Environment: called with afs_xdcache lock write-locked.
*/
-static void afs_FreeDCache(register struct dcache *adc)
+static void
+afs_FreeDCache(register struct dcache *adc)
{
/* Thread on free list, update free list count and mark entry as
* freed in its indexFlags element. Also, ensure DCache entry gets
if (afs_WaitForCacheDrain) {
if ((afs_blocksUsed - afs_blocksDiscarded) <=
- (CM_CACHESIZEDRAINEDPCT*afs_cacheBlocks)/100) {
+ (CM_CACHESIZEDRAINEDPCT * afs_cacheBlocks) / 100) {
afs_WaitForCacheDrain = 0;
afs_osi_Wakeup(&afs_WaitForCacheDrain);
}
* Must be called with afs_xdcache write-locked.
*/
-static void afs_DiscardDCache(register struct dcache *adc)
+static void
+afs_DiscardDCache(register struct dcache *adc)
{
register afs_int32 size;
osi_Assert(adc->refCount == 1);
- size = ((adc->f.chunkBytes + afs_fsfragsize)^afs_fsfragsize)>>10;/* round up */
+ size = ((adc->f.chunkBytes + afs_fsfragsize) ^ afs_fsfragsize) >> 10; /* round up */
afs_blocksDiscarded += size;
afs_stats_cmperf.cacheBlocksDiscarded = afs_blocksDiscarded;
if (afs_WaitForCacheDrain) {
if ((afs_blocksUsed - afs_blocksDiscarded) <=
- (CM_CACHESIZEDRAINEDPCT*afs_cacheBlocks)/100) {
+ (CM_CACHESIZEDRAINEDPCT * afs_cacheBlocks) / 100) {
afs_WaitForCacheDrain = 0;
afs_osi_Wakeup(&afs_WaitForCacheDrain);
}
}
-} /*afs_DiscardDCache*/
+} /*afs_DiscardDCache */
/*
* afs_FreeDiscardedDCache
* Description:
* Free the next element on the list of discarded cache elements.
*/
-static void afs_FreeDiscardedDCache(void)
+static void
+afs_FreeDiscardedDCache(void)
{
register struct dcache *tdc;
- register struct osi_file *tfile;
+ register struct osi_file *tfile;
register afs_int32 size;
AFS_STATCNT(afs_FreeDiscardedDCache);
- MObtainWriteLock(&afs_xdcache,510);
+ MObtainWriteLock(&afs_xdcache, 510);
if (!afs_blocksDiscarded) {
MReleaseWriteLock(&afs_xdcache);
return;
afs_discardDCList = afs_dvnextTbl[tdc->index];
afs_dvnextTbl[tdc->index] = NULLIDX;
afs_discardDCCount--;
- size = ((tdc->f.chunkBytes + afs_fsfragsize)^afs_fsfragsize)>>10;/* round up */
+ size = ((tdc->f.chunkBytes + afs_fsfragsize) ^ afs_fsfragsize) >> 10; /* round up */
afs_blocksDiscarded -= size;
afs_stats_cmperf.cacheBlocksDiscarded = afs_blocksDiscarded;
/* We can lock because we just took it off the free list */
/*
* Free the element we just truncated
*/
- MObtainWriteLock(&afs_xdcache,511);
+ MObtainWriteLock(&afs_xdcache, 511);
afs_indexFlags[tdc->index] &= ~IFDiscarded;
afs_FreeDCache(tdc);
ReleaseWriteLock(&tdc->lock);
* Parameters:
* None
*/
-int afs_MaybeFreeDiscardedDCache(void)
+int
+afs_MaybeFreeDiscardedDCache(void)
{
AFS_STATCNT(afs_MaybeFreeDiscardedDCache);
- while (afs_blocksDiscarded &&
- (afs_blocksUsed > (CM_WAITFORDRAINPCT*afs_cacheBlocks)/100)) {
+ while (afs_blocksDiscarded
+ && (afs_blocksUsed >
+ (CM_WAITFORDRAINPCT * afs_cacheBlocks) / 100)) {
afs_FreeDiscardedDCache();
}
return 0;
* Environment:
* Must be called with afs_xdcache write-locked.
*/
-static void afs_GetDownDSlot(int anumber)
+static void
+afs_GetDownDSlot(int anumber)
{
struct afs_q *tq, *nq;
struct dcache *tdc;
osi_Panic("getdowndslot nolock");
/* decrement anumber first for all dudes in free list */
- for(tdc = afs_freeDSList; tdc; tdc = (struct dcache *)tdc->lruq.next)
+ for (tdc = afs_freeDSList; tdc; tdc = (struct dcache *)tdc->lruq.next)
anumber--;
- if (anumber <= 0)
- return; /* enough already free */
+ if (anumber <= 0)
+ return; /* enough already free */
- for(cnt=0, tq = afs_DLRU.prev; tq != &afs_DLRU && anumber > 0;
- tq = nq, cnt++) {
- tdc = (struct dcache *) tq; /* q is first elt in dcache entry */
- nq = QPrev(tq); /* in case we remove it */
+ for (cnt = 0, tq = afs_DLRU.prev; tq != &afs_DLRU && anumber > 0;
+ tq = nq, cnt++) {
+ tdc = (struct dcache *)tq; /* q is first elt in dcache entry */
+ nq = QPrev(tq); /* in case we remove it */
if (tdc->refCount == 0) {
- if ((ix=tdc->index) == NULLIDX) osi_Panic("getdowndslot");
+ if ((ix = tdc->index) == NULLIDX)
+ osi_Panic("getdowndslot");
/* pull the entry out of the lruq and put it on the free list */
QRemove(&tdc->lruq);
/*
* ask proxy to do this for us - we don't have the stack space
*/
- while (tdc->dflags & DFEntryMod) {
+ while (tdc->dflags & DFEntryMod) {
int s;
AFS_GUNLOCK();
s = SPLOCK(afs_sgibklock);
tdc->stamp = 0;
#ifdef IHINT
- if (tdc->ihint) {
- struct osi_file * f = (struct osi_file *)tdc->ihint;
- tdc->ihint = 0;
- afs_UFSClose(f);
- nihints--;
- }
+ if (tdc->ihint) {
+ struct osi_file *f = (struct osi_file *)tdc->ihint;
+ tdc->ihint = 0;
+ afs_UFSClose(f);
+ nihints--;
+ }
#endif /* IHINT */
afs_indexTable[ix] = NULL;
afs_indexFlags[ix] &= ~IFEverUsed;
tdc->index = NULLIDX;
- tdc->lruq.next = (struct afs_q *) afs_freeDSList;
+ tdc->lruq.next = (struct afs_q *)afs_freeDSList;
afs_freeDSList = tdc;
anumber--;
}
}
-} /*afs_GetDownDSlot*/
+} /*afs_GetDownDSlot */
/*
* Environment:
* Nothing interesting.
*/
-int afs_RefDCache(struct dcache *adc)
+int
+afs_RefDCache(struct dcache *adc)
{
ObtainWriteLock(&adc->tlock, 627);
if (adc->refCount < 0)
* Environment:
* Nothing interesting.
*/
-int afs_PutDCache(register struct dcache *adc)
+int
+afs_PutDCache(register struct dcache *adc)
{
AFS_STATCNT(afs_PutDCache);
ObtainWriteLock(&adc->tlock, 276);
* Environment:
* Both pvnLock and lock are write held.
*/
-void afs_TryToSmush(register struct vcache *avc, struct AFS_UCRED *acred,
- int sync)
+void
+afs_TryToSmush(register struct vcache *avc, struct AFS_UCRED *acred, int sync)
{
register struct dcache *tdc;
register int index;
AFS_STATCNT(afs_TryToSmush);
afs_Trace2(afs_iclSetp, CM_TRACE_TRYTOSMUSH, ICL_TYPE_POINTER, avc,
ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length));
- sync = 1; /* XX Temp testing XX*/
+ sync = 1; /* XX Temp testing XX */
#if defined(AFS_SUN5_ENV)
ObtainWriteLock(&avc->vlock, 573);
- avc->activeV++; /* block new getpages */
+ avc->activeV++; /* block new getpages */
ReleaseWriteLock(&avc->vlock);
#endif
/*
* Get the hash chain containing all dce's for this fid
*/
- i = DVHash(&avc->fid);
- MObtainWriteLock(&afs_xdcache,277);
- for(index = afs_dvhashTbl[i]; index != NULLIDX; index=i) {
- i = afs_dvnextTbl[index]; /* next pointer this hash table */
- if (afs_indexUnique[index] == avc->fid.Fid.Unique) {
- int releaseTlock = 1;
- tdc = afs_GetDSlot(index, NULL);
- if (!FidCmp(&tdc->f.fid, &avc->fid)) {
- if (sync) {
- if ((afs_indexFlags[index] & IFDataMod) == 0 &&
- tdc->refCount == 1) {
- ReleaseReadLock(&tdc->tlock);
- releaseTlock = 0;
- afs_FlushDCache(tdc);
- }
- } else
- afs_indexTable[index] = 0;
+ i = DVHash(&avc->fid);
+ MObtainWriteLock(&afs_xdcache, 277);
+ for (index = afs_dvhashTbl[i]; index != NULLIDX; index = i) {
+ i = afs_dvnextTbl[index]; /* next pointer this hash table */
+ if (afs_indexUnique[index] == avc->fid.Fid.Unique) {
+ int releaseTlock = 1;
+ tdc = afs_GetDSlot(index, NULL);
+ if (!FidCmp(&tdc->f.fid, &avc->fid)) {
+ if (sync) {
+ if ((afs_indexFlags[index] & IFDataMod) == 0
+ && tdc->refCount == 1) {
+ ReleaseReadLock(&tdc->tlock);
+ releaseTlock = 0;
+ afs_FlushDCache(tdc);
+ }
+ } else
+ afs_indexTable[index] = 0;
+ }
+ if (releaseTlock)
+ ReleaseReadLock(&tdc->tlock);
+ afs_PutDCache(tdc);
}
- if (releaseTlock) ReleaseReadLock(&tdc->tlock);
- afs_PutDCache(tdc);
- }
}
#if defined(AFS_SUN5_ENV)
ObtainWriteLock(&avc->vlock, 545);
* The vcache entry is held upon entry.
*/
-struct dcache *afs_FindDCache(register struct vcache *avc, afs_size_t abyte)
+struct dcache *
+afs_FindDCache(register struct vcache *avc, afs_size_t abyte)
{
afs_int32 chunk;
register afs_int32 i, index;
- register struct dcache *tdc;
+ register struct dcache *tdc = NULL;
AFS_STATCNT(afs_FindDCache);
chunk = AFS_CHUNK(abyte);
* after write-locking the dcache.
*/
i = DCHash(&avc->fid, chunk);
- MObtainWriteLock(&afs_xdcache,278);
- for(index = afs_dchashTbl[i]; index != NULLIDX;) {
+ MObtainWriteLock(&afs_xdcache, 278);
+ for (index = afs_dchashTbl[i]; index != NULLIDX;) {
if (afs_indexUnique[index] == avc->fid.Fid.Unique) {
tdc = afs_GetDSlot(index, NULL);
ReleaseReadLock(&tdc->tlock);
hset(afs_indexTimes[tdc->index], afs_indexCounter);
hadd32(afs_indexCounter, 1);
return tdc;
- }
- else
+ } else
return NULL;
-} /*afs_FindDCache*/
+} /*afs_FindDCache */
/*
* Environment:
* Nothing interesting.
*/
-static int afs_UFSCacheStoreProc(register struct rx_call *acall,
- struct osi_file *afile, register afs_int32 alen, struct vcache *avc,
- int *shouldWake, afs_size_t *abytesToXferP, afs_size_t *abytesXferredP)
+static int
+afs_UFSCacheStoreProc(register struct rx_call *acall, struct osi_file *afile,
+ register afs_int32 alen, struct vcache *avc,
+ int *shouldWake, afs_size_t * abytesToXferP,
+ afs_size_t * abytesXferredP)
{
afs_int32 code, got;
register char *tbuffer;
* In this case, alen is *always* the amount of data we'll be trying
* to ship here.
*/
- (*abytesToXferP) = alen;
+ (*abytesToXferP) = alen;
(*abytesXferredP) = 0;
#endif /* AFS_NOSTATS */
afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
- ICL_TYPE_FID, &(avc->fid),
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length),
- ICL_TYPE_INT32, alen);
+ ICL_TYPE_FID, &(avc->fid), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(avc->m.Length), ICL_TYPE_INT32, alen);
tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
while (alen > 0) {
tlen = (alen > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : alen);
got = afs_osi_Read(afile, -1, tbuffer, tlen);
- if ((got < 0)
+ if ((got < 0)
#if defined(KERNEL_HAVE_UERROR)
|| (got != tlen && getuerror())
#endif
osi_FreeLargeSpace(tbuffer);
return EIO;
}
- afs_Trace2(afs_iclSetp, CM_TRACE_STOREPROC2,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(*tbuffer),
- ICL_TYPE_INT32, got);
+ afs_Trace2(afs_iclSetp, CM_TRACE_STOREPROC2, ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(*tbuffer), ICL_TYPE_INT32, got);
RX_AFS_GUNLOCK();
- code = rx_Write(acall, tbuffer, got); /* writing 0 bytes will
- * push a short packet. Is that really what we want, just because the
- * data didn't come back from the disk yet? Let's try it and see. */
+ code = rx_Write(acall, tbuffer, got); /* writing 0 bytes will
+ * push a short packet. Is that really what we want, just because the
+ * data didn't come back from the disk yet? Let's try it and see. */
RX_AFS_GLOCK();
#ifndef AFS_NOSTATS
(*abytesXferredP) += code;
* to continue.
*/
if (shouldWake && *shouldWake && (rx_GetRemoteStatus(acall) & 1)) {
- *shouldWake = 0; /* only do this once */
+ *shouldWake = 0; /* only do this once */
afs_wakeup(avc);
}
}
afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
- ICL_TYPE_FID, &(avc->fid),
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length),
- ICL_TYPE_INT32, alen);
+ ICL_TYPE_FID, &(avc->fid), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(avc->m.Length), ICL_TYPE_INT32, alen);
osi_FreeLargeSpace(tbuffer);
return 0;
-} /* afs_UFSCacheStoreProc*/
+} /* afs_UFSCacheStoreProc */
/*
* Nothing interesting.
*/
-static int afs_UFSCacheFetchProc(register struct rx_call *acall,
- struct osi_file *afile, afs_size_t abase, struct dcache *adc,
- struct vcache *avc, afs_size_t *abytesToXferP,
- afs_size_t *abytesXferredP, afs_int32 lengthFound)
+static int
+afs_UFSCacheFetchProc(register struct rx_call *acall, struct osi_file *afile,
+ afs_size_t abase, struct dcache *adc,
+ struct vcache *avc, afs_size_t * abytesToXferP,
+ afs_size_t * abytesXferredP, afs_int32 lengthFound)
{
afs_int32 length;
register afs_int32 code;
AFS_STATCNT(UFS_CacheFetchProc);
osi_Assert(WriteLocked(&adc->lock));
- afile->offset = 0; /* Each time start from the beginning */
+ afile->offset = 0; /* Each time start from the beginning */
length = lengthFound;
#ifndef AFS_NOSTATS
- (*abytesToXferP) = 0;
+ (*abytesToXferP) = 0;
(*abytesXferredP) = 0;
#endif /* AFS_NOSTATS */
tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
do {
if (moredata) {
RX_AFS_GUNLOCK();
- code = rx_Read(acall, (char *)&length, sizeof(afs_int32));
+ code = rx_Read(acall, (char *)&length, sizeof(afs_int32));
RX_AFS_GLOCK();
length = ntohl(length);
- if (code != sizeof(afs_int32)) {
- osi_FreeLargeSpace(tbuffer);
- code = rx_Error(acall);
- return (code?code:-1); /* try to return code, not -1 */
- }
+ if (code != sizeof(afs_int32)) {
+ osi_FreeLargeSpace(tbuffer);
+ code = rx_Error(acall);
+ return (code ? code : -1); /* try to return code, not -1 */
+ }
}
/*
* The fetch protocol is extended for the AFS/DFS translator
}
#ifndef AFS_NOSTATS
(*abytesToXferP) += length;
-#endif /* AFS_NOSTATS */
+#endif /* AFS_NOSTATS */
while (length > 0) {
tlen = (length > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : length);
#ifdef RX_KERNEL_TRACE
- afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP,
- ICL_TYPE_STRING, "before rx_Read");
+ afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
+ "before rx_Read");
#endif
RX_AFS_GUNLOCK();
code = rx_Read(acall, tbuffer, tlen);
RX_AFS_GLOCK();
#ifdef RX_KERNEL_TRACE
- afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP,
- ICL_TYPE_STRING, "after rx_Read");
+ afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
+ "after rx_Read");
#endif
#ifndef AFS_NOSTATS
(*abytesXferredP) += code;
-#endif /* AFS_NOSTATS */
+#endif /* AFS_NOSTATS */
if (code != tlen) {
osi_FreeLargeSpace(tbuffer);
afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64READ,
- ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
- ICL_TYPE_INT32, length);
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
+ ICL_TYPE_INT32, length);
return -34;
}
code = afs_osi_Write(afile, -1, tbuffer, tlen);
length -= tlen;
adc->validPos = abase;
if (afs_osi_Wakeup(&adc->validPos) == 0)
- afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE,
- ICL_TYPE_STRING, __FILE__,
- ICL_TYPE_INT32, __LINE__,
- ICL_TYPE_POINTER, adc,
- ICL_TYPE_INT32, adc->dflags);
+ afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
+ __FILE__, ICL_TYPE_INT32, __LINE__,
+ ICL_TYPE_POINTER, adc, ICL_TYPE_INT32,
+ adc->dflags);
}
} while (moredata);
osi_FreeLargeSpace(tbuffer);
return 0;
-} /* afs_UFSCacheFetchProc*/
+} /* afs_UFSCacheFetchProc */
/*
* afs_GetDCache
* Update the vnode-to-dcache hint if we can get the vnode lock
* right away. Assumes dcache entry is at least read-locked.
*/
-void updateV2DC(int lockVc, struct vcache *v, struct dcache *d, int src)
+void
+updateV2DC(int lockVc, struct vcache *v, struct dcache *d, int src)
{
- if (!lockVc || 0 == NBObtainWriteLock(&v->lock,src)) {
+ if (!lockVc || 0 == NBObtainWriteLock(&v->lock, src)) {
if (hsame(v->m.DataVersion, d->f.versionNo) && v->callback) {
v->quick.dc = d;
v->quick.stamp = d->stamp = MakeStamp();
v->quick.len = d->f.chunkBytes;
v->h1.dchint = d;
}
- if (lockVc) ReleaseWriteLock(&v->lock);
+ if (lockVc)
+ ReleaseWriteLock(&v->lock);
}
}
/* avc - Write-locked unless aflags & 1 */
-struct dcache *afs_GetDCache(register struct vcache *avc, afs_size_t abyte,
- register struct vrequest *areq, afs_size_t *aoffset, afs_size_t *alen,
- int aflags)
+struct dcache *
+afs_GetDCache(register struct vcache *avc, afs_size_t abyte,
+ register struct vrequest *areq, afs_size_t * aoffset,
+ afs_size_t * alen, int aflags)
{
- register afs_int32 i, code, code1=0, shortcut;
+ register afs_int32 i, code, code1 = 0, shortcut;
#if defined(AFS_AIX32_ENV) || defined(AFS_SGI_ENV)
register afs_int32 adjustsize = 0;
#endif
afs_int32 index;
afs_int32 us;
afs_int32 chunk;
- afs_size_t maxGoodLength; /* amount of good data at server */
+ afs_size_t maxGoodLength; /* amount of good data at server */
struct rx_call *tcall;
afs_size_t Position = 0;
#ifdef AFS_64BIT_CLIENT
afs_size_t tsize;
- afs_size_t lengthFound; /* as returned from server */
+ afs_size_t lengthFound; /* as returned from server */
#endif /* AFS_64BIT_CLIENT */
- afs_int32 size, tlen; /* size of segment to transfer */
+ afs_int32 size, tlen; /* size of segment to transfer */
struct tlocal1 *tsmall = 0;
register struct dcache *tdc;
register struct osi_file *file;
register struct conn *tc;
int downDCount = 0;
- struct server *newCallback;
+ struct server *newCallback = NULL;
char setNewCallback;
char setVcacheStatus;
char doVcacheUpdate;
int doReallyAdjustSize = 0;
int overWriteWholeChunk = 0;
- XSTATS_DECLS
+ XSTATS_DECLS;
#ifndef AFS_NOSTATS
struct afs_stats_xferData *xferP; /* Ptr to this op's xfer struct */
- osi_timeval_t xferStartTime, /*FS xfer start time*/
- xferStopTime; /*FS xfer stop time*/
- afs_size_t bytesToXfer; /* # bytes to xfer*/
- afs_size_t bytesXferred; /* # bytes actually xferred*/
- struct afs_stats_AccessInfo *accP; /*Ptr to access record in stats*/
- int fromReplica; /*Are we reading from a replica?*/
- int numFetchLoops; /*# times around the fetch/analyze loop*/
+ osi_timeval_t xferStartTime, /*FS xfer start time */
+ xferStopTime; /*FS xfer stop time */
+ afs_size_t bytesToXfer; /* # bytes to xfer */
+ afs_size_t bytesXferred; /* # bytes actually xferred */
+ struct afs_stats_AccessInfo *accP; /*Ptr to access record in stats */
+ int fromReplica; /*Are we reading from a replica? */
+ int numFetchLoops; /*# times around the fetch/analyze loop */
#endif /* AFS_NOSTATS */
AFS_STATCNT(afs_GetDCache);
* Determine the chunk number and offset within the chunk corresponding
* to the desired byte.
*/
- if (avc->fid.Fid.Vnode & 1) { /* if (vType(avc) == VDIR) */
+ if (avc->fid.Fid.Vnode & 1) { /* if (vType(avc) == VDIR) */
chunk = 0;
- }
- else {
+ } else {
chunk = AFS_CHUNK(abyte);
}
/* come back to here if we waited for the cache to drain. */
-RetryGetDCache:
+ RetryGetDCache:
setNewCallback = setVcacheStatus = 0;
MObtainReadLock(&afs_xdcache);
dcLocked = (0 == NBObtainSharedLock(&tdc->lock, 601));
- if (dcLocked &&
- (tdc->index != NULLIDX) && !FidCmp(&tdc->f.fid, &avc->fid) &&
- chunk == tdc->f.chunk &&
- !(afs_indexFlags[tdc->index] & (IFFree|IFDiscarded))) {
+ if (dcLocked && (tdc->index != NULLIDX)
+ && !FidCmp(&tdc->f.fid, &avc->fid) && chunk == tdc->f.chunk
+ && !(afs_indexFlags[tdc->index] & (IFFree | IFDiscarded))) {
/* got the right one. It might not be the right version, and it
* might be fetching, but it's the right dcache entry.
*/
MReleaseReadLock(&afs_xdcache);
shortcut = 1;
- if (hsame(tdc->f.versionNo, avc->m.DataVersion) &&
- !(tdc->dflags & DFFetching)) {
+ if (hsame(tdc->f.versionNo, avc->m.DataVersion)
+ && !(tdc->dflags & DFFetching)) {
afs_stats_cmperf.dcacheHits++;
MObtainWriteLock(&afs_xdcache, 559);
goto done;
}
} else {
- if (dcLocked) ReleaseSharedLock(&tdc->lock);
+ if (dcLocked)
+ ReleaseSharedLock(&tdc->lock);
MReleaseReadLock(&afs_xdcache);
}
* tdc->lock(S) if tdc
*/
- if (!tdc) { /* If the hint wasn't the right dcache entry */
+ if (!tdc) { /* If the hint wasn't the right dcache entry */
/*
* Hash on the [fid, chunk] and get the corresponding dcache index
* after write-locking the dcache.
*/
-RetryLookup:
+ RetryLookup:
/* Locks held:
* avc->lock(R) if setLocks && !slowPass
/* check to make sure our space is fine */
afs_MaybeWakeupTruncateDaemon();
- MObtainWriteLock(&afs_xdcache,280);
+ MObtainWriteLock(&afs_xdcache, 280);
us = NULLIDX;
- for (index = afs_dchashTbl[i]; index != NULLIDX; ) {
+ for (index = afs_dchashTbl[i]; index != NULLIDX;) {
if (afs_indexUnique[index] == avc->fid.Fid.Unique) {
tdc = afs_GetDSlot(index, NULL);
ReleaseReadLock(&tdc->tlock);
*/
if (!FidCmp(&tdc->f.fid, &avc->fid) && chunk == tdc->f.chunk) {
/* Move it up in the beginning of the list */
- if (afs_dchashTbl[i] != index) {
+ if (afs_dchashTbl[i] != index) {
afs_dcnextTbl[us] = afs_dcnextTbl[index];
afs_dcnextTbl[index] = afs_dchashTbl[i];
afs_dchashTbl[i] = index;
}
MReleaseWriteLock(&afs_xdcache);
ObtainSharedLock(&tdc->lock, 606);
- break; /* leaving refCount high for caller */
+ break; /* leaving refCount high for caller */
}
afs_PutDCache(tdc);
tdc = 0;
/* Make sure there is a free dcache entry for us to use */
if (afs_discardDCList == NULLIDX && afs_freeDCList == NULLIDX) {
while (1) {
- if (!setLocks) avc->states |= CDCLock;
- afs_GetDownD(5, (int*)0); /* just need slots */
- if (!setLocks) avc->states &= ~CDCLock;
- if (afs_discardDCList != NULLIDX || afs_freeDCList != NULLIDX)
+ if (!setLocks)
+ avc->states |= CDCLock;
+ afs_GetDownD(5, (int *)0); /* just need slots */
+ if (!setLocks)
+ avc->states &= ~CDCLock;
+ if (afs_discardDCList != NULLIDX
+ || afs_freeDCList != NULLIDX)
break;
/* If we can't get space for 5 mins we give up and panic */
if (++downDCount > 300)
- osi_Panic("getdcache");
+ osi_Panic("getdcache");
MReleaseWriteLock(&afs_xdcache);
/*
* Locks held:
}
}
- if (afs_discardDCList == NULLIDX ||
- ((aflags & 2) && afs_freeDCList != NULLIDX)) {
+ if (afs_discardDCList == NULLIDX
+ || ((aflags & 2) && afs_freeDCList != NULLIDX)) {
afs_indexFlags[afs_freeDCList] &= ~IFFree;
tdc = afs_GetDSlot(afs_freeDCList, 0);
ObtainWriteLock(&tdc->lock, 605);
afs_discardDCList = afs_dvnextTbl[tdc->index];
afs_discardDCCount--;
- size = ((tdc->f.chunkBytes + afs_fsfragsize)^afs_fsfragsize)>>10;
+ size =
+ ((tdc->f.chunkBytes +
+ afs_fsfragsize) ^ afs_fsfragsize) >> 10;
afs_blocksDiscarded -= size;
afs_stats_cmperf.cacheBlocksDiscarded = afs_blocksDiscarded;
if (aflags & 2) {
afs_indexFlags[tdc->index] &= ~(IFDirtyPages | IFAnyPages);
tdc->f.fid = avc->fid;
afs_indexUnique[tdc->index] = tdc->f.fid.Fid.Unique;
- hones(tdc->f.versionNo); /* invalid value */
+ hones(tdc->f.versionNo); /* invalid value */
tdc->f.chunk = chunk;
tdc->validPos = AFS_CHUNKTOBASE(chunk);
/* XXX */
- if (tdc->lruq.prev == &tdc->lruq) osi_Panic("lruq 1");
+ if (tdc->lruq.prev == &tdc->lruq)
+ osi_Panic("lruq 1");
/*
* Now add to the two hash chains - note that i is still set
MReleaseWriteLock(&afs_xdcache);
ConvertWToSLock(&tdc->lock);
}
- } /* vcache->dcache hint failed */
+ }
+
+ /* vcache->dcache hint failed */
/*
* Locks held:
* avc->lock(R) if setLocks && !slowPass
* avc->lock(W) if !setLocks || slowPass
* tdc->lock(S)
*/
-
afs_Trace4(afs_iclSetp, CM_TRACE_GETDCACHE2, ICL_TYPE_POINTER, avc,
- ICL_TYPE_POINTER, tdc,
- ICL_TYPE_INT32, hgetlo(tdc->f.versionNo),
- ICL_TYPE_INT32, hgetlo(avc->m.DataVersion));
+ ICL_TYPE_POINTER, tdc, ICL_TYPE_INT32,
+ hgetlo(tdc->f.versionNo), ICL_TYPE_INT32,
+ hgetlo(avc->m.DataVersion));
/*
* Here we have the entry in tdc, with its refCount incremented.
* Note: we don't use the S-lock on avc; it costs concurrency when
* that this chunk's data hasn't been filled by another client.
*/
size = AFS_CHUNKSIZE(abyte);
- if (aflags & 4) /* called from write */
+ if (aflags & 4) /* called from write */
tlen = *alen;
- else /* called from read */
+ else /* called from read */
tlen = tdc->validPos - abyte;
Position = AFS_CHUNKTOBASE(chunk);
- afs_Trace4(afs_iclSetp, CM_TRACE_GETDCACHE3,
- ICL_TYPE_INT32, tlen,
- ICL_TYPE_INT32, aflags,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(abyte),
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(Position));
+ afs_Trace4(afs_iclSetp, CM_TRACE_GETDCACHE3, ICL_TYPE_INT32, tlen,
+ ICL_TYPE_INT32, aflags, ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(abyte), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(Position));
if ((aflags & 4) && (hiszero(avc->m.DataVersion)))
doAdjustSize = 1;
if ((aflags & 4) && (abyte == Position) && (tlen >= size))
#if defined(AFS_AIX32_ENV) || defined(AFS_SGI_ENV)
#ifdef AFS_SGI_ENV
#ifdef AFS_SGI64_ENV
- if (doAdjustSize) adjustsize = NBPP;
+ if (doAdjustSize)
+ adjustsize = NBPP;
#else /* AFS_SGI64_ENV */
- if (doAdjustSize) adjustsize = 8192;
+ if (doAdjustSize)
+ adjustsize = 8192;
#endif /* AFS_SGI64_ENV */
#else /* AFS_SGI_ENV */
- if (doAdjustSize) adjustsize = 4096;
+ if (doAdjustSize)
+ adjustsize = 4096;
#endif /* AFS_SGI_ENV */
- if (AFS_CHUNKTOBASE(chunk)+adjustsize >= avc->m.Length &&
+ if (AFS_CHUNKTOBASE(chunk) + adjustsize >= avc->m.Length &&
#else /* defined(AFS_AIX32_ENV) || defined(AFS_SGI_ENV) */
#if defined(AFS_SUN_ENV) || defined(AFS_OSF_ENV)
- if ((doAdjustSize || (AFS_CHUNKTOBASE(chunk) >= avc->m.Length)) &&
+ if ((doAdjustSize || (AFS_CHUNKTOBASE(chunk) >= avc->m.Length)) &&
#else
- if (AFS_CHUNKTOBASE(chunk) >= avc->m.Length &&
+ if (AFS_CHUNKTOBASE(chunk) >= avc->m.Length &&
#endif
#endif /* defined(AFS_AIX32_ENV) || defined(AFS_SGI_ENV) */
- !hsame(avc->m.DataVersion, tdc->f.versionNo))
+ !hsame(avc->m.DataVersion, tdc->f.versionNo))
doReallyAdjustSize = 1;
if (doReallyAdjustSize || overWriteWholeChunk) {
else
ReleaseReadLock(&avc->lock);
}
- return tdc; /* check if we're done */
+ return tdc; /* check if we're done */
}
/*
/* Watch for standard race condition around osi_FlushText */
if (hsame(avc->m.DataVersion, tdc->f.versionNo)) {
- updateV2DC(setLocks, avc, tdc, 569); /* set hint */
- afs_stats_cmperf.dcacheHits++;
+ updateV2DC(setLocks, avc, tdc, 569); /* set hint */
+ afs_stats_cmperf.dcacheHits++;
ConvertWToSLock(&tdc->lock);
goto done;
}
/* Sleep here when cache needs to be drained. */
- if (setLocks && !slowPass &&
- (afs_blocksUsed > (CM_WAITFORDRAINPCT*afs_cacheBlocks)/100)) {
+ if (setLocks && !slowPass
+ && (afs_blocksUsed >
+ (CM_WAITFORDRAINPCT * afs_cacheBlocks) / 100)) {
/* Make sure truncate daemon is running */
afs_MaybeWakeupTruncateDaemon();
ObtainWriteLock(&tdc->tlock, 614);
- tdc->refCount--; /* we'll re-obtain the dcache when we re-try. */
+ tdc->refCount--; /* we'll re-obtain the dcache when we re-try. */
ReleaseWriteLock(&tdc->tlock);
ReleaseWriteLock(&tdc->lock);
ReleaseReadLock(&avc->lock);
- while ((afs_blocksUsed-afs_blocksDiscarded) >
- (CM_WAITFORDRAINPCT*afs_cacheBlocks)/100) {
+ while ((afs_blocksUsed - afs_blocksDiscarded) >
+ (CM_WAITFORDRAINPCT * afs_cacheBlocks) / 100) {
afs_WaitForCacheDrain = 1;
afs_osi_Sleep(&afs_WaitForCacheDrain);
}
/* Do not fetch data beyond truncPos. */
maxGoodLength = avc->m.Length;
- if (avc->truncPos < maxGoodLength) maxGoodLength = avc->truncPos;
+ if (avc->truncPos < maxGoodLength)
+ maxGoodLength = avc->truncPos;
Position = AFS_CHUNKBASE(abyte);
if (vType(avc) == VDIR) {
size = avc->m.Length;
/* pre-reserve space for file */
afs_AdjustSize(tdc, size);
}
- size = 999999999; /* max size for transfer */
- }
- else {
+ size = 999999999; /* max size for transfer */
+ } else {
size = AFS_CHUNKSIZE(abyte); /* expected max size */
/* don't read past end of good data on server */
if (Position + size > maxGoodLength)
size = maxGoodLength - Position;
- if (size < 0) size = 0; /* Handle random races */
+ if (size < 0)
+ size = 0; /* Handle random races */
if (size > tdc->f.chunkBytes) {
/* pre-reserve space for file */
afs_AdjustSize(tdc, size); /* changes chunkBytes */
/* max size for transfer still in size */
}
}
- if (afs_mariner && !tdc->f.chunk)
- afs_MarinerLog("fetch$Fetching", avc); /* , Position, size, afs_indexCounter );*/
+ if (afs_mariner && !tdc->f.chunk)
+ afs_MarinerLog("fetch$Fetching", avc); /* , Position, size, afs_indexCounter ); */
/*
* Right now, we only have one tool, and it's a hammer. So, we
* fetch the whole file.
*/
- DZap(&tdc->f.inode); /* pages in cache may be old */
+ DZap(tdc); /* pages in cache may be old */
#ifdef IHINT
- if (file = tdc->ihint) {
- if (tdc->f.inode == file->inum )
- usedihint++;
- else {
- tdc->ihint = 0;
- afs_UFSClose(file);
- file = 0;
- nihints--;
- file = osi_UFSOpen(tdc->f.inode);
- }
- }
- else
+ if (file = tdc->ihint) {
+ if (tdc->f.inode == file->inum)
+ usedihint++;
+ else {
+ tdc->ihint = 0;
+ afs_UFSClose(file);
+ file = 0;
+ nihints--;
+ file = osi_UFSOpen(tdc->f.inode);
+ }
+ } else
#endif /* IHINT */
- file = afs_CFileOpen(tdc->f.inode);
+ file = afs_CFileOpen(tdc->f.inode);
afs_RemoveVCB(&avc->fid);
tdc->f.states |= DWriting;
tdc->dflags |= DFFetching;
if (tdc->mflags & DFFetchReq) {
tdc->mflags &= ~DFFetchReq;
if (afs_osi_Wakeup(&tdc->validPos) == 0)
- afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE,
- ICL_TYPE_STRING, __FILE__,
- ICL_TYPE_INT32, __LINE__,
- ICL_TYPE_POINTER, tdc,
- ICL_TYPE_INT32, tdc->dflags);
+ afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
+ __FILE__, ICL_TYPE_INT32, __LINE__,
+ ICL_TYPE_POINTER, tdc, ICL_TYPE_INT32,
+ tdc->dflags);
}
- tsmall = (struct tlocal1 *) osi_AllocLargeSpace(sizeof(struct tlocal1));
+ tsmall =
+ (struct tlocal1 *)osi_AllocLargeSpace(sizeof(struct tlocal1));
setVcacheStatus = 0;
#ifndef AFS_NOSTATS
/*
#endif /* AFS_NOSTATS */
/* this is a cache miss */
afs_Trace4(afs_iclSetp, CM_TRACE_FETCHPROC, ICL_TYPE_POINTER, avc,
- ICL_TYPE_FID, &(avc->fid),
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(Position),
- ICL_TYPE_INT32, size);
+ ICL_TYPE_FID, &(avc->fid), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(Position), ICL_TYPE_INT32, size);
- if (size) afs_stats_cmperf.dcacheMisses++;
+ if (size)
+ afs_stats_cmperf.dcacheMisses++;
code = 0;
/*
* Dynamic root support: fetch data from local memory.
dynrootLen -= Position;
if (size > dynrootLen)
size = dynrootLen;
- if (size < 0) size = 0;
+ if (size < 0)
+ size = 0;
code = afs_CFileWrite(file, 0, dynrootDir, size);
afs_PutDynroot();
code = -1;
tdc->validPos = Position + size;
- afs_CFileTruncate(file, size); /* prune it */
+ afs_CFileTruncate(file, size); /* prune it */
} else
- /*
- * Not a dynamic vnode: do the real fetch.
- */
- do {
/*
- * Locks held:
- * avc->lock(R) if setLocks && !slowPass
- * avc->lock(W) if !setLocks || slowPass
- * tdc->lock(W)
+ * Not a dynamic vnode: do the real fetch.
*/
+ do {
+ /*
+ * Locks held:
+ * avc->lock(R) if setLocks && !slowPass
+ * avc->lock(W) if !setLocks || slowPass
+ * tdc->lock(W)
+ */
- tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
- if (tc) {
- afs_int32 length_hi, length, bytes;
+ tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
+ if (tc) {
+ afs_int32 length_hi, length, bytes;
#ifndef AFS_NOSTATS
- numFetchLoops++;
- if (fromReplica)
- (accP->numReplicasAccessed)++;
-
+ numFetchLoops++;
+ if (fromReplica)
+ (accP->numReplicasAccessed)++;
+
#endif /* AFS_NOSTATS */
- if (!setLocks || slowPass) {
- avc->callback = tc->srvr->server;
- } else {
- newCallback = tc->srvr->server;
- setNewCallback = 1;
- }
- i = osi_Time();
- RX_AFS_GUNLOCK();
- tcall = rx_NewCall(tc->id);
- RX_AFS_GLOCK();
+ if (!setLocks || slowPass) {
+ avc->callback = tc->srvr->server;
+ } else {
+ newCallback = tc->srvr->server;
+ setNewCallback = 1;
+ }
+ i = osi_Time();
+ RX_AFS_GUNLOCK();
+ tcall = rx_NewCall(tc->id);
+ RX_AFS_GLOCK();
- XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHDATA);
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHDATA);
#ifdef AFS_64BIT_CLIENT
- length_hi = code = 0;
- if (!afs_serverHasNo64Bit(tc)) {
- tsize = size;
- RX_AFS_GUNLOCK();
- code = StartRXAFS_FetchData64(tcall,
- (struct AFSFid *) &avc->fid.Fid,
- Position, tsize);
- if (code != 0) {
- RX_AFS_GLOCK();
- afs_Trace2(afs_iclSetp, CM_TRACE_FETCH64CODE,
- ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code);
- } else {
- bytes = rx_Read(tcall, (char *)&length_hi, sizeof(afs_int32));
- RX_AFS_GLOCK();
- if (bytes == sizeof(afs_int32)) {
- length_hi = ntohl(length_hi);
- } else {
- length_hi = 0;
- code = rx_Error(tcall);
+ length_hi = code = 0;
+ if (!afs_serverHasNo64Bit(tc)) {
+ tsize = size;
+ RX_AFS_GUNLOCK();
+ code =
+ StartRXAFS_FetchData64(tcall,
+ (struct AFSFid *)&avc->fid.
+ Fid, Position, tsize);
+ if (code != 0) {
+ RX_AFS_GLOCK();
+ afs_Trace2(afs_iclSetp, CM_TRACE_FETCH64CODE,
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32,
+ code);
+ } else {
+ bytes =
+ rx_Read(tcall, (char *)&length_hi,
+ sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32)) {
+ length_hi = ntohl(length_hi);
+ } else {
+ length_hi = 0;
+ code = rx_Error(tcall);
+ RX_AFS_GUNLOCK();
+ code1 = rx_EndCall(tcall, code);
+ RX_AFS_GLOCK();
+ tcall = (struct rx_call *)0;
+ }
+ }
+ }
+ if (code == RXGEN_OPCODE || afs_serverHasNo64Bit(tc)) {
+ if (Position > 0x7FFFFFFF) {
+ code = EFBIG;
+ } else {
+ afs_int32 pos;
+ pos = Position;
RX_AFS_GUNLOCK();
- code1 = rx_EndCall(tcall, code);
- RX_AFS_GLOCK();
- tcall = (struct rx_call *) 0;
+ if (!tcall)
+ tcall = rx_NewCall(tc->id);
+ code =
+ StartRXAFS_FetchData(tcall, (struct AFSFid *)
+ &avc->fid.Fid, pos,
+ size);
+ RX_AFS_GLOCK();
}
+ afs_serverSetNo64Bit(tc);
}
- }
- if (code == RXGEN_OPCODE || afs_serverHasNo64Bit(tc)) {
- if (Position > 0x7FFFFFFF) {
- code = EFBIG;
- } else {
- afs_int32 pos;
- pos = Position;
+ if (code == 0) {
RX_AFS_GUNLOCK();
- if (!tcall)
- tcall = rx_NewCall(tc->id);
- code = StartRXAFS_FetchData(tcall,
- (struct AFSFid *) &avc->fid.Fid, pos, size);
- RX_AFS_GLOCK();
- }
- afs_serverSetNo64Bit(tc);
- }
- if (code == 0) {
- RX_AFS_GUNLOCK();
- bytes = rx_Read(tcall, (char *)&length, sizeof(afs_int32));
- RX_AFS_GLOCK();
- if (bytes == sizeof(afs_int32)) {
- length = ntohl(length);
- } else {
- code = rx_Error(tcall);
+ bytes =
+ rx_Read(tcall, (char *)&length,
+ sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32)) {
+ length = ntohl(length);
+ } else {
+ code = rx_Error(tcall);
+ }
}
- }
- FillInt64(lengthFound, length_hi, length);
- afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64LENG,
- ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(lengthFound));
+ FillInt64(lengthFound, length_hi, length);
+ afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64LENG,
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
+ ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(lengthFound));
#else /* AFS_64BIT_CLIENT */
- RX_AFS_GUNLOCK();
- code = StartRXAFS_FetchData(tcall,
- (struct AFSFid *) &avc->fid.Fid,
- Position, size);
- RX_AFS_GLOCK();
- if (code == 0) {
- RX_AFS_GUNLOCK();
- bytes = rx_Read(tcall, (char *)&length, sizeof(afs_int32));
+ RX_AFS_GUNLOCK();
+ code =
+ StartRXAFS_FetchData(tcall,
+ (struct AFSFid *)&avc->fid.Fid,
+ Position, size);
RX_AFS_GLOCK();
- if (bytes == sizeof(afs_int32)) {
- length = ntohl(length);
- } else {
- code = rx_Error(tcall);
+ if (code == 0) {
+ RX_AFS_GUNLOCK();
+ bytes =
+ rx_Read(tcall, (char *)&length,
+ sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32)) {
+ length = ntohl(length);
+ } else {
+ code = rx_Error(tcall);
+ }
}
- }
#endif /* AFS_64BIT_CLIENT */
- if (code == 0) {
+ if (code == 0) {
#ifndef AFS_NOSTATS
- xferP = &(afs_stats_cmfullperf.rpc.fsXferTimes[AFS_STATS_FS_XFERIDX_FETCHDATA]);
- osi_GetuTime(&xferStartTime);
-
- code = afs_CacheFetchProc(tcall, file,
- (afs_size_t) Position, tdc, avc,
- &bytesToXfer, &bytesXferred, length);
-
- osi_GetuTime(&xferStopTime);
- (xferP->numXfers)++;
- if (!code) {
- (xferP->numSuccesses)++;
- afs_stats_XferSumBytes[AFS_STATS_FS_XFERIDX_FETCHDATA] += bytesXferred;
- (xferP->sumBytes) += (afs_stats_XferSumBytes[AFS_STATS_FS_XFERIDX_FETCHDATA] >> 10);
- afs_stats_XferSumBytes[AFS_STATS_FS_XFERIDX_FETCHDATA] &= 0x3FF;
- if (bytesXferred < xferP->minBytes)
- xferP->minBytes = bytesXferred;
- if (bytesXferred > xferP->maxBytes)
- xferP->maxBytes = bytesXferred;
-
- /*
- * Tally the size of the object. Note: we tally the actual size,
- * NOT the number of bytes that made it out over the wire.
- */
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET0)
- (xferP->count[0])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET1)
- (xferP->count[1])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET2)
- (xferP->count[2])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET3)
- (xferP->count[3])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET4)
- (xferP->count[4])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET5)
- (xferP->count[5])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET6)
- (xferP->count[6])++;
- else
- if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET7)
- (xferP->count[7])++;
- else
- (xferP->count[8])++;
-
- afs_stats_GetDiff(elapsedTime, xferStartTime, xferStopTime);
- afs_stats_AddTo((xferP->sumTime), elapsedTime);
- afs_stats_SquareAddTo((xferP->sqrTime), elapsedTime);
- if (afs_stats_TimeLessThan(elapsedTime, (xferP->minTime))) {
- afs_stats_TimeAssign((xferP->minTime), elapsedTime);
- }
- if (afs_stats_TimeGreaterThan(elapsedTime, (xferP->maxTime))) {
- afs_stats_TimeAssign((xferP->maxTime), elapsedTime);
- }
- }
+ xferP =
+ &(afs_stats_cmfullperf.rpc.
+ fsXferTimes[AFS_STATS_FS_XFERIDX_FETCHDATA]);
+ osi_GetuTime(&xferStartTime);
+
+ code =
+ afs_CacheFetchProc(tcall, file,
+ (afs_size_t) Position, tdc,
+ avc, &bytesToXfer,
+ &bytesXferred, length);
+
+ osi_GetuTime(&xferStopTime);
+ (xferP->numXfers)++;
+ if (!code) {
+ (xferP->numSuccesses)++;
+ afs_stats_XferSumBytes
+ [AFS_STATS_FS_XFERIDX_FETCHDATA] +=
+ bytesXferred;
+ (xferP->sumBytes) +=
+ (afs_stats_XferSumBytes
+ [AFS_STATS_FS_XFERIDX_FETCHDATA] >> 10);
+ afs_stats_XferSumBytes
+ [AFS_STATS_FS_XFERIDX_FETCHDATA] &= 0x3FF;
+ if (bytesXferred < xferP->minBytes)
+ xferP->minBytes = bytesXferred;
+ if (bytesXferred > xferP->maxBytes)
+ xferP->maxBytes = bytesXferred;
+
+ /*
+ * Tally the size of the object. Note: we tally the actual size,
+ * NOT the number of bytes that made it out over the wire.
+ */
+ if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET0)
+ (xferP->count[0])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET1)
+ (xferP->count[1])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET2)
+ (xferP->count[2])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET3)
+ (xferP->count[3])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET4)
+ (xferP->count[4])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET5)
+ (xferP->count[5])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET6)
+ (xferP->count[6])++;
+ else if (bytesToXfer <=
+ AFS_STATS_MAXBYTES_BUCKET7)
+ (xferP->count[7])++;
+ else
+ (xferP->count[8])++;
+
+ afs_stats_GetDiff(elapsedTime, xferStartTime,
+ xferStopTime);
+ afs_stats_AddTo((xferP->sumTime), elapsedTime);
+ afs_stats_SquareAddTo((xferP->sqrTime),
+ elapsedTime);
+ if (afs_stats_TimeLessThan
+ (elapsedTime, (xferP->minTime))) {
+ afs_stats_TimeAssign((xferP->minTime),
+ elapsedTime);
+ }
+ if (afs_stats_TimeGreaterThan
+ (elapsedTime, (xferP->maxTime))) {
+ afs_stats_TimeAssign((xferP->maxTime),
+ elapsedTime);
+ }
+ }
#else
- code = afs_CacheFetchProc(tcall, file, Position, tdc, avc, 0, 0, length);
+ code =
+ afs_CacheFetchProc(tcall, file, Position, tdc,
+ avc, 0, 0, length);
#endif /* AFS_NOSTATS */
- }
- if (code == 0) {
+ }
+ if (code == 0) {
+ RX_AFS_GUNLOCK();
+ code =
+ EndRXAFS_FetchData(tcall, &tsmall->OutStatus,
+ &tsmall->CallBack,
+ &tsmall->tsync);
+ RX_AFS_GLOCK();
+ }
+ XSTATS_END_TIME;
RX_AFS_GUNLOCK();
- code = EndRXAFS_FetchData(tcall,
- &tsmall->OutStatus,
- &tsmall->CallBack,
- &tsmall->tsync);
+ if (tcall)
+ code1 = rx_EndCall(tcall, code);
RX_AFS_GLOCK();
- }
- XSTATS_END_TIME;
- RX_AFS_GUNLOCK();
- if (tcall)
- code1 = rx_EndCall(tcall, code);
- RX_AFS_GLOCK();
- }
- else {
- code = -1;
- }
- if ( !code && code1 )
- code = code1;
-
- if (code == 0) {
- /* callback could have been broken (or expired) in a race here,
- * but we return the data anyway. It's as good as we knew about
- * when we started. */
- /*
- * validPos is updated by CacheFetchProc, and can only be
- * modifed under a dcache write lock, which we've blocked out
- */
- size = tdc->validPos - Position; /* actual segment size */
- if (size < 0) size = 0;
- afs_CFileTruncate(file, size); /* prune it */
- }
- else {
- if (!setLocks || slowPass) {
- ObtainWriteLock(&afs_xcbhash, 453);
- afs_DequeueCallback(avc);
- avc->states &= ~(CStatd | CUnique);
- avc->callback = NULL;
- ReleaseWriteLock(&afs_xcbhash);
- if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
- osi_dnlc_purgedp(avc);
} else {
- /* Something lost. Forget about performance, and go
- * back with a vcache write lock.
+ code = -1;
+ }
+ if (!code && code1)
+ code = code1;
+
+ if (code == 0) {
+ /* callback could have been broken (or expired) in a race here,
+ * but we return the data anyway. It's as good as we knew about
+ * when we started. */
+ /*
+ * validPos is updated by CacheFetchProc, and can only be
+ * modifed under a dcache write lock, which we've blocked out
*/
- afs_CFileTruncate(file, 0);
- afs_AdjustSize(tdc, 0);
- afs_CFileClose(file);
- osi_FreeLargeSpace(tsmall);
- tsmall = 0;
- ReleaseWriteLock(&tdc->lock);
- afs_PutDCache(tdc);
- tdc = 0;
- ReleaseReadLock(&avc->lock);
- slowPass = 1;
- goto RetryGetDCache;
+ size = tdc->validPos - Position; /* actual segment size */
+ if (size < 0)
+ size = 0;
+ afs_CFileTruncate(file, size); /* prune it */
+ } else {
+ if (!setLocks || slowPass) {
+ ObtainWriteLock(&afs_xcbhash, 453);
+ afs_DequeueCallback(avc);
+ avc->states &= ~(CStatd | CUnique);
+ avc->callback = NULL;
+ ReleaseWriteLock(&afs_xcbhash);
+ if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
+ osi_dnlc_purgedp(avc);
+ } else {
+ /* Something lost. Forget about performance, and go
+ * back with a vcache write lock.
+ */
+ afs_CFileTruncate(file, 0);
+ afs_AdjustSize(tdc, 0);
+ afs_CFileClose(file);
+ osi_FreeLargeSpace(tsmall);
+ tsmall = 0;
+ ReleaseWriteLock(&tdc->lock);
+ afs_PutDCache(tdc);
+ tdc = 0;
+ ReleaseReadLock(&avc->lock);
+ slowPass = 1;
+ goto RetryGetDCache;
+ }
}
- }
- } while
- (afs_Analyze(tc, code, &avc->fid, areq,
- AFS_STATS_FS_RPCIDX_FETCHDATA,
- SHARED_LOCK, NULL));
+ } while (afs_Analyze
+ (tc, code, &avc->fid, areq,
+ AFS_STATS_FS_RPCIDX_FETCHDATA, SHARED_LOCK, NULL));
/*
* Locks held:
tdc->dflags &= ~DFFetching;
if (afs_osi_Wakeup(&tdc->validPos) == 0)
- afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE,
- ICL_TYPE_STRING, __FILE__,
- ICL_TYPE_INT32, __LINE__,
- ICL_TYPE_POINTER, tdc,
- ICL_TYPE_INT32, tdc->dflags);
- if (avc->execsOrWriters == 0) tdc->f.states &= ~DWriting;
+ afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
+ __FILE__, ICL_TYPE_INT32, __LINE__, ICL_TYPE_POINTER,
+ tdc, ICL_TYPE_INT32, tdc->dflags);
+ if (avc->execsOrWriters == 0)
+ tdc->f.states &= ~DWriting;
/* now, if code != 0, we have an error and should punt.
* note that we have the vcache write lock, either because
afs_CFileClose(file);
ZapDCE(tdc); /* sets DFEntryMod */
if (vType(avc) == VDIR) {
- DZap(&tdc->f.inode);
+ DZap(tdc);
}
ReleaseWriteLock(&tdc->lock);
afs_PutDCache(tdc);
ObtainWriteLock(&afs_xcbhash, 454);
afs_DequeueCallback(avc);
- avc->states &= ~( CStatd | CUnique );
+ avc->states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
osi_dnlc_purgedp(avc);
*/
osi_Assert(!setLocks || slowPass);
tdc = NULL;
- goto done;
+ goto done;
}
/* otherwise we copy in the just-fetched info */
afs_CFileClose(file);
- afs_AdjustSize(tdc, size); /* new size */
+ afs_AdjustSize(tdc, size); /* new size */
/*
* Copy appropriate fields into vcache. Status is
* copied later where we selectively acquire the
afs_ProcessFS(avc, &tsmall->OutStatus, areq);
else
setVcacheStatus = 1;
- hset64(tdc->f.versionNo, tsmall->OutStatus.dataVersionHigh, tsmall->OutStatus.DataVersion);
+ hset64(tdc->f.versionNo, tsmall->OutStatus.dataVersionHigh,
+ tsmall->OutStatus.DataVersion);
tdc->dflags |= DFEntryMod;
afs_indexFlags[tdc->index] |= IFEverUsed;
ConvertWToSLock(&tdc->lock);
- } /*Data version numbers don't match*/
+ } /*Data version numbers don't match */
else {
/*
* Data version numbers match.
*/
afs_stats_cmperf.dcacheHits++;
- } /*Data version numbers match*/
+ } /*Data version numbers match */
- updateV2DC(setLocks, avc, tdc, 335); /* set hint */
-done:
+ updateV2DC(setLocks, avc, tdc, 335); /* set hint */
+ done:
/*
* Locks held:
* avc->lock(R) if setLocks && !slowPass
if (tsmall) {
hset64(statusDV, tsmall->OutStatus.dataVersionHigh,
- tsmall->OutStatus.DataVersion);
+ tsmall->OutStatus.DataVersion);
if (setVcacheStatus && avc->m.Length != tsmall->OutStatus.Length)
doVcacheUpdate = 1;
/* Check if we need to perform any last-minute fixes with a write-lock */
if (!setLocks || doVcacheUpdate) {
- if (setNewCallback) avc->callback = newCallback;
- if (tsmall && setVcacheStatus) afs_ProcessFS(avc, &tsmall->OutStatus, areq);
- if (setLocks) ReleaseWriteLock(&avc->lock);
+ if (setNewCallback)
+ avc->callback = newCallback;
+ if (tsmall && setVcacheStatus)
+ afs_ProcessFS(avc, &tsmall->OutStatus, areq);
+ if (setLocks)
+ ReleaseWriteLock(&avc->lock);
}
- if (tsmall) osi_FreeLargeSpace(tsmall);
+ if (tsmall)
+ osi_FreeLargeSpace(tsmall);
return tdc;
-} /*afs_GetDCache*/
+} /*afs_GetDCache */
/*
* Environment:
* The afs_xdcache is write-locked through this whole affair.
*/
-void afs_WriteThroughDSlots(void)
+void
+afs_WriteThroughDSlots(void)
{
register struct dcache *tdc;
- register afs_int32 i, touchedit=0;
- struct dcache **ents;
- int entmax, entcount;
+ register afs_int32 i, touchedit = 0;
+
+ struct afs_q DirtyQ, *tq;
AFS_STATCNT(afs_WriteThroughDSlots);
* holding afs_xdcache. So we enter xdcache, get a reference
* for every dcache entry, and exit xdcache.
*/
- MObtainWriteLock(&afs_xdcache,283);
- entmax = afs_cacheFiles;
- ents = afs_osi_Alloc(entmax * sizeof(struct dcache *));
- entcount = 0;
- for(i = 0; i < afs_cacheFiles; i++) {
+ MObtainWriteLock(&afs_xdcache, 283);
+ QInit(&DirtyQ);
+ for (i = 0; i < afs_cacheFiles; i++) {
tdc = afs_indexTable[i];
/* Grab tlock in case the existing refcount isn't zero */
tdc->refCount++;
ReleaseWriteLock(&tdc->tlock);
- ents[entcount++] = tdc;
+ QAdd(&DirtyQ, &tdc->dirty);
}
}
MReleaseWriteLock(&afs_xdcache);
* afs_cacheInodep, and flush it. Don't forget to put back
* the refcounts.
*/
- for (i = 0; i < entcount; i++) {
- tdc = ents[i];
+#define DQTODC(q) ((struct dcache *)(((char *) (q)) - sizeof(struct afs_q)))
+
+ for (tq = DirtyQ.prev; tq != &DirtyQ; tq = QPrev(tq)) {
+ tdc = DQTODC(tq);
if (tdc->dflags & DFEntryMod) {
int wrLock;
MReleaseWriteLock(&afs_xdcache);
touchedit = 1;
}
- if (wrLock) ReleaseWriteLock(&tdc->lock);
+ if (wrLock)
+ ReleaseWriteLock(&tdc->lock);
}
afs_PutDCache(tdc);
}
- afs_osi_Free(ents, entmax * sizeof(struct dcache *));
MObtainWriteLock(&afs_xdcache, 617);
if (!touchedit && (cacheDiskType != AFS_FCACHE_TYPE_MEM)) {
* Must be called with afs_xdcache write-locked.
*/
-struct dcache *afs_MemGetDSlot(register afs_int32 aslot, register struct dcache *tmpdc)
+struct dcache *
+afs_MemGetDSlot(register afs_int32 aslot, register struct dcache *tmpdc)
{
register struct dcache *tdc;
int existing = 0;
AFS_STATCNT(afs_MemGetDSlot);
- if (CheckLock(&afs_xdcache) != -1) osi_Panic("getdslot nolock");
- if (aslot < 0 || aslot >= afs_cacheFiles) osi_Panic("getdslot slot");
+ if (CheckLock(&afs_xdcache) != -1)
+ osi_Panic("getdslot nolock");
+ if (aslot < 0 || aslot >= afs_cacheFiles)
+ osi_Panic("getdslot slot");
tdc = afs_indexTable[aslot];
if (tdc) {
- QRemove(&tdc->lruq); /* move to queue head */
+ QRemove(&tdc->lruq); /* move to queue head */
QAdd(&afs_DLRU, &tdc->lruq);
/* We're holding afs_xdcache, but get tlock in case refCount != 0 */
ObtainWriteLock(&tdc->tlock, 624);
return tdc;
}
if (tmpdc == NULL) {
- if (!afs_freeDSList) afs_GetDownDSlot(4);
+ if (!afs_freeDSList)
+ afs_GetDownDSlot(4);
if (!afs_freeDSList) {
/* none free, making one is better than a panic */
afs_stats_cmperf.dcacheXAllocs++; /* count in case we have a leak */
- tdc = (struct dcache *) afs_osi_Alloc(sizeof (struct dcache));
+ tdc = (struct dcache *)afs_osi_Alloc(sizeof(struct dcache));
#ifdef KERNEL_HAVE_PIN
pin((char *)tdc, sizeof(struct dcache)); /* XXX */
#endif
} else {
tdc = afs_freeDSList;
- afs_freeDSList = (struct dcache *) tdc->lruq.next;
+ afs_freeDSList = (struct dcache *)tdc->lruq.next;
existing = 1;
}
tdc->dflags = 0; /* up-to-date, not in free q */
tdc->mflags = 0;
QAdd(&afs_DLRU, &tdc->lruq);
- if (tdc->lruq.prev == &tdc->lruq) osi_Panic("lruq 3");
- }
- else {
+ if (tdc->lruq.prev == &tdc->lruq)
+ osi_Panic("lruq 3");
+ } else {
tdc = tmpdc;
tdc->f.states = 0;
}
-
+
/* initialize entry */
tdc->f.fid.Cell = 0;
tdc->f.fid.Fid.Volume = 0;
RWLOCK_INIT(&tdc->tlock, "dcache tlock");
RWLOCK_INIT(&tdc->mflock, "dcache flock");
ObtainReadLock(&tdc->tlock);
-
+
if (tmpdc == NULL)
afs_indexTable[aslot] = tdc;
return tdc;
-} /*afs_MemGetDSlot*/
+} /*afs_MemGetDSlot */
unsigned int last_error = 0, lasterrtime = 0;
* Environment:
* afs_xdcache lock write-locked.
*/
-struct dcache *afs_UFSGetDSlot(register afs_int32 aslot, register struct dcache *tmpdc)
+struct dcache *
+afs_UFSGetDSlot(register afs_int32 aslot, register struct dcache *tmpdc)
{
register afs_int32 code;
register struct dcache *tdc;
int entryok;
AFS_STATCNT(afs_UFSGetDSlot);
- if (CheckLock(&afs_xdcache) != -1) osi_Panic("getdslot nolock");
- if (aslot < 0 || aslot >= afs_cacheFiles) osi_Panic("getdslot slot");
+ if (CheckLock(&afs_xdcache) != -1)
+ osi_Panic("getdslot nolock");
+ if (aslot < 0 || aslot >= afs_cacheFiles)
+ osi_Panic("getdslot slot");
tdc = afs_indexTable[aslot];
if (tdc) {
- QRemove(&tdc->lruq); /* move to queue head */
+ QRemove(&tdc->lruq); /* move to queue head */
QAdd(&afs_DLRU, &tdc->lruq);
/* Grab tlock in case refCount != 0 */
ObtainWriteLock(&tdc->tlock, 625);
* we have to allocate one.
*/
if (tmpdc == NULL) {
- if (!afs_freeDSList) afs_GetDownDSlot(4);
+ if (!afs_freeDSList)
+ afs_GetDownDSlot(4);
if (!afs_freeDSList) {
/* none free, making one is better than a panic */
afs_stats_cmperf.dcacheXAllocs++; /* count in case we have a leak */
- tdc = (struct dcache *) afs_osi_Alloc(sizeof (struct dcache));
+ tdc = (struct dcache *)afs_osi_Alloc(sizeof(struct dcache));
#ifdef KERNEL_HAVE_PIN
pin((char *)tdc, sizeof(struct dcache)); /* XXX */
#endif
} else {
tdc = afs_freeDSList;
- afs_freeDSList = (struct dcache *) tdc->lruq.next;
+ afs_freeDSList = (struct dcache *)tdc->lruq.next;
existing = 1;
}
tdc->dflags = 0; /* up-to-date, not in free q */
tdc->mflags = 0;
QAdd(&afs_DLRU, &tdc->lruq);
- if (tdc->lruq.prev == &tdc->lruq) osi_Panic("lruq 3");
- }
- else {
+ if (tdc->lruq.prev == &tdc->lruq)
+ osi_Panic("lruq 3");
+ } else {
tdc = tmpdc;
tdc->f.states = 0;
tdc->ihint = 0;
}
/*
- * Seek to the aslot'th entry and read it in.
- */
- code = afs_osi_Read(afs_cacheInodep, sizeof(struct fcache) * aslot +
- sizeof(struct afs_fheader),
- (char *)(&tdc->f), sizeof(struct fcache));
+ * Seek to the aslot'th entry and read it in.
+ */
+ code =
+ afs_osi_Read(afs_cacheInodep,
+ sizeof(struct fcache) * aslot +
+ sizeof(struct afs_fheader), (char *)(&tdc->f),
+ sizeof(struct fcache));
entryok = 1;
if (code != sizeof(struct fcache))
entryok = 0;
}
tdc->refCount = 1;
tdc->index = aslot;
+ if (tdc->f.chunk >= 0)
+ tdc->validPos = AFS_CHUNKTOBASE(tdc->f.chunk) + tdc->f.chunkBytes;
+ else
+ tdc->validPos = 0;
if (existing) {
osi_Assert(0 == NBObtainWriteLock(&tdc->lock, 674));
afs_indexTable[aslot] = tdc;
return tdc;
-} /*afs_UFSGetDSlot*/
+} /*afs_UFSGetDSlot */
* The reference count is not changed.
*/
-int afs_WriteDCache(register struct dcache *adc, int atime)
+int
+afs_WriteDCache(register struct dcache *adc, int atime)
{
register afs_int32 code;
- if (cacheDiskType == AFS_FCACHE_TYPE_MEM) return 0;
+ if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
+ return 0;
AFS_STATCNT(afs_WriteDCache);
if (atime)
adc->f.modTime = osi_Time();
* Seek to the right dcache slot and write the in-memory image out to disk.
*/
afs_cellname_write();
- code = afs_osi_Write(afs_cacheInodep, sizeof(struct fcache) * adc->index +
- sizeof(struct afs_fheader),
- (char *)(&adc->f), sizeof(struct fcache));
- if (code != sizeof(struct fcache)) return EIO;
+ code =
+ afs_osi_Write(afs_cacheInodep,
+ sizeof(struct fcache) * adc->index +
+ sizeof(struct afs_fheader), (char *)(&adc->f),
+ sizeof(struct fcache));
+ if (code != sizeof(struct fcache))
+ return EIO;
return 0;
}
* Nothing interesting.
*/
-int afs_wakeup(register struct vcache *avc)
+int
+afs_wakeup(register struct vcache *avc)
{
register int i;
register struct brequest *tb;
AFS_STATCNT(afs_wakeup);
for (i = 0; i < NBRS; i++, tb++) {
/* if request is valid and for this file, we've found it */
- if (tb->refCount > 0 && avc == tb->vnode) {
+ if (tb->refCount > 0 && avc == tb->vc) {
/*
* If CSafeStore is on, then we don't awaken the guy
* This function is called only during initialization.
*/
-int afs_InitCacheFile(char *afile, ino_t ainode)
+int
+afs_InitCacheFile(char *afile, ino_t ainode)
{
register afs_int32 code;
#if defined(AFS_LINUX22_ENV)
AFS_STATCNT(afs_InitCacheFile);
index = afs_stats_cmperf.cacheNumEntries;
- if (index >= afs_cacheFiles) return EINVAL;
+ if (index >= afs_cacheFiles)
+ return EINVAL;
- MObtainWriteLock(&afs_xdcache,282);
+ MObtainWriteLock(&afs_xdcache, 282);
tdc = afs_GetDSlot(index, NULL);
ReleaseReadLock(&tdc->tlock);
MReleaseWriteLock(&afs_xdcache);
ObtainWriteLock(&tdc->lock, 621);
MObtainWriteLock(&afs_xdcache, 622);
if (afile) {
- code = gop_lookupname(afile,
- AFS_UIOSYS,
- 0,
- NULL,
- &filevp);
+ code = gop_lookupname(afile, AFS_UIOSYS, 0, NULL, &filevp);
if (code) {
ReleaseWriteLock(&afs_xdcache);
ReleaseWriteLock(&tdc->lock);
#ifdef AFS_DEC_ENV
grele(filevp);
#else
- AFS_RELE((struct vnode *)filevp);
+ AFS_RELE(filevp);
#endif
#endif /* AFS_LINUX22_ENV */
- }
- else {
+ } else {
tdc->f.inode = ainode;
}
fileIsBad = 0;
- if ((tdc->f.states & DWriting) ||
- tdc->f.fid.Fid.Volume == 0) fileIsBad = 1;
+ if ((tdc->f.states & DWriting) || tdc->f.fid.Fid.Volume == 0)
+ fileIsBad = 1;
tfile = osi_UFSOpen(tdc->f.inode);
code = afs_osi_Stat(tfile, &tstat);
- if (code) osi_Panic("initcachefile stat");
+ if (code)
+ osi_Panic("initcachefile stat");
/*
* If file size doesn't match the cache info file, it's probably bad.
*/
- if (tdc->f.chunkBytes != tstat.size) fileIsBad = 1;
+ if (tdc->f.chunkBytes != tstat.size)
+ fileIsBad = 1;
tdc->f.chunkBytes = 0;
/*
* the cache info file may be incorrectly identified, and so slot
* may be bad.
*/
- if (cacheInfoModTime < tstat.mtime + 120) fileIsBad = 1;
- if (cacheInfoModTime < tdc->f.modTime + 120) fileIsBad = 1;
+ if (cacheInfoModTime < tstat.mtime + 120)
+ fileIsBad = 1;
+ if (cacheInfoModTime < tdc->f.modTime + 120)
+ fileIsBad = 1;
/* In case write through is behind, make sure cache items entry is
* at least as new as the chunk.
*/
- if (tdc->f.modTime < tstat.mtime) fileIsBad = 1;
+ if (tdc->f.modTime < tstat.mtime)
+ fileIsBad = 1;
if (fileIsBad) {
- tdc->f.fid.Fid.Volume = 0; /* not in the hash table */
+ tdc->f.fid.Fid.Volume = 0; /* not in the hash table */
if (tstat.size != 0)
osi_UFSTruncate(tfile, 0);
/* put entry in free cache slot list */
afs_freeDCCount++;
afs_indexFlags[index] |= IFFree;
afs_indexUnique[index] = 0;
- }
- else {
+ } else {
/*
* We must put this entry in the appropriate hash tables.
* Note that i is still set from the above DCHash call
*/
code = DCHash(&tdc->f.fid, tdc->f.chunk);
- afs_dcnextTbl[tdc->index] = afs_dchashTbl[code];
+ afs_dcnextTbl[tdc->index] = afs_dchashTbl[code];
afs_dchashTbl[code] = tdc->index;
code = DVHash(&tdc->f.fid);
afs_dvnextTbl[tdc->index] = afs_dvhashTbl[code];
afs_dvhashTbl[code] = tdc->index;
- afs_AdjustSize(tdc, tstat.size); /* adjust to new size */
+ afs_AdjustSize(tdc, tstat.size); /* adjust to new size */
if (tstat.size > 0)
/* has nontrivial amt of data */
afs_indexFlags[index] |= IFEverUsed;
hset32(afs_indexCounter, tstat.atime);
}
afs_indexUnique[index] = tdc->f.fid.Fid.Unique;
- } /*File is not bad*/
+ } /*File is not bad */
osi_UFSClose(tfile);
tdc->f.states &= ~DWriting;
* Description:
* Initialize dcache related variables.
*/
-void afs_dcacheInit(int afiles, int ablocks, int aDentries, int achunk,
- int aflags)
+void
+afs_dcacheInit(int afiles, int ablocks, int aDentries, int achunk, int aflags)
{
register struct dcache *tdp;
int i;
hzero(afs_indexCounter);
LOCK_INIT(&afs_xdcache, "afs_xdcache");
-
+
/*
* Set chunk size
*/
if (achunk) {
if (achunk < 0 || achunk > 30)
- achunk = 13; /* Use default */
+ achunk = 13; /* Use default */
AFS_SETCHUNKSIZE(achunk);
}
-
- if(!aDentries)
+
+ if (!aDentries)
aDentries = DDSIZE;
-
- if(aflags & AFSCALL_INIT_MEMCACHE) {
+
+ if (aflags & AFSCALL_INIT_MEMCACHE) {
/*
* Use a memory cache instead of a disk cache
*/
cacheDiskType = AFS_FCACHE_TYPE_MEM;
afs_cacheType = &afs_MemCacheOps;
- afiles = (afiles < aDentries) ? afiles : aDentries; /* min */
- ablocks = afiles * (AFS_FIRSTCSIZE/1024);
+ afiles = (afiles < aDentries) ? afiles : aDentries; /* min */
+ ablocks = afiles * (AFS_FIRSTCSIZE / 1024);
/* ablocks is reported in 1K blocks */
- code = afs_InitMemCache(afiles * AFS_FIRSTCSIZE, AFS_FIRSTCSIZE, aflags);
+ code = afs_InitMemCache(afiles, AFS_FIRSTCSIZE, aflags);
if (code != 0) {
printf("afsd: memory cache too large for available memory.\n");
printf("afsd: AFS files cannot be accessed.\n\n");
dcacheDisabled = 1;
afiles = ablocks = 0;
- }
- else
- printf("Memory cache: Allocating %d dcache entries...", aDentries);
+ } else
+ printf("Memory cache: Allocating %d dcache entries...",
+ aDentries);
} else {
cacheDiskType = AFS_FCACHE_TYPE_UFS;
afs_cacheType = &afs_UfsCacheOps;
}
- if (aDentries > 512)
+ if (aDentries > 512)
afs_dhashsize = 2048;
/* initialize hash tables */
- afs_dvhashTbl = (afs_int32 *) afs_osi_Alloc(afs_dhashsize * sizeof(afs_int32));
- afs_dchashTbl = (afs_int32 *) afs_osi_Alloc(afs_dhashsize * sizeof(afs_int32));
- for(i=0;i< afs_dhashsize;i++) {
+ afs_dvhashTbl =
+ (afs_int32 *) afs_osi_Alloc(afs_dhashsize * sizeof(afs_int32));
+ afs_dchashTbl =
+ (afs_int32 *) afs_osi_Alloc(afs_dhashsize * sizeof(afs_int32));
+ for (i = 0; i < afs_dhashsize; i++) {
afs_dvhashTbl[i] = NULLIDX;
afs_dchashTbl[i] = NULLIDX;
}
afs_dvnextTbl = (afs_int32 *) afs_osi_Alloc(afiles * sizeof(afs_int32));
afs_dcnextTbl = (afs_int32 *) afs_osi_Alloc(afiles * sizeof(afs_int32));
- for(i=0;i< afiles;i++) {
+ for (i = 0; i < afiles; i++) {
afs_dvnextTbl[i] = NULLIDX;
afs_dcnextTbl[i] = NULLIDX;
}
-
+
/* Allocate and zero the pointer array to the dcache entries */
afs_indexTable = (struct dcache **)
afs_osi_Alloc(sizeof(struct dcache *) * afiles);
memset((char *)afs_indexTable, 0, sizeof(struct dcache *) * afiles);
- afs_indexTimes = (afs_hyper_t *) afs_osi_Alloc(afiles * sizeof(afs_hyper_t));
+ afs_indexTimes =
+ (afs_hyper_t *) afs_osi_Alloc(afiles * sizeof(afs_hyper_t));
memset((char *)afs_indexTimes, 0, afiles * sizeof(afs_hyper_t));
- afs_indexUnique = (afs_int32 *) afs_osi_Alloc(afiles * sizeof(afs_uint32));
+ afs_indexUnique =
+ (afs_int32 *) afs_osi_Alloc(afiles * sizeof(afs_uint32));
memset((char *)afs_indexUnique, 0, afiles * sizeof(afs_uint32));
afs_indexFlags = (u_char *) afs_osi_Alloc(afiles * sizeof(u_char));
memset((char *)afs_indexFlags, 0, afiles * sizeof(char));
-
+
/* Allocate and thread the struct dcache entries themselves */
tdp = afs_Initial_freeDSList =
- (struct dcache *) afs_osi_Alloc(aDentries * sizeof(struct dcache));
+ (struct dcache *)afs_osi_Alloc(aDentries * sizeof(struct dcache));
memset((char *)tdp, 0, aDentries * sizeof(struct dcache));
#ifdef KERNEL_HAVE_PIN
- pin((char *)afs_indexTable, sizeof(struct dcache *) * afiles);/* XXX */
- pin((char *)afs_indexTimes, sizeof(afs_hyper_t) * afiles); /* XXX */
- pin((char *)afs_indexFlags, sizeof(char) * afiles); /* XXX */
- pin((char *)afs_indexUnique, sizeof(afs_int32) * afiles); /* XXX */
- pin((char *)tdp, aDentries * sizeof(struct dcache)); /* XXX */
- pin((char *)afs_dvhashTbl, sizeof(afs_int32) * afs_dhashsize); /* XXX */
- pin((char *)afs_dchashTbl, sizeof(afs_int32) * afs_dhashsize); /* XXX */
- pin((char *)afs_dcnextTbl, sizeof(afs_int32) * afiles); /* XXX */
- pin((char *)afs_dvnextTbl, sizeof(afs_int32) * afiles); /* XXX */
+ pin((char *)afs_indexTable, sizeof(struct dcache *) * afiles); /* XXX */
+ pin((char *)afs_indexTimes, sizeof(afs_hyper_t) * afiles); /* XXX */
+ pin((char *)afs_indexFlags, sizeof(char) * afiles); /* XXX */
+ pin((char *)afs_indexUnique, sizeof(afs_int32) * afiles); /* XXX */
+ pin((char *)tdp, aDentries * sizeof(struct dcache)); /* XXX */
+ pin((char *)afs_dvhashTbl, sizeof(afs_int32) * afs_dhashsize); /* XXX */
+ pin((char *)afs_dchashTbl, sizeof(afs_int32) * afs_dhashsize); /* XXX */
+ pin((char *)afs_dcnextTbl, sizeof(afs_int32) * afiles); /* XXX */
+ pin((char *)afs_dvnextTbl, sizeof(afs_int32) * afiles); /* XXX */
#endif
afs_freeDSList = &tdp[0];
- for(i=0; i < aDentries-1; i++) {
- tdp[i].lruq.next = (struct afs_q *) (&tdp[i+1]);
+ for (i = 0; i < aDentries - 1; i++) {
+ tdp[i].lruq.next = (struct afs_q *)(&tdp[i + 1]);
}
- tdp[aDentries-1].lruq.next = (struct afs_q *) 0;
+ tdp[aDentries - 1].lruq.next = (struct afs_q *)0;
- afs_stats_cmperf.cacheBlocksOrig = afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks = ablocks;
+ afs_stats_cmperf.cacheBlocksOrig = afs_stats_cmperf.cacheBlocksTotal =
+ afs_cacheBlocks = ablocks;
afs_ComputeCacheParms(); /* compute parms based on cache size */
afs_dcentries = aDentries;
* shutdown_dcache
*
*/
-void shutdown_dcache(void)
+void
+shutdown_dcache(void)
{
int i;
afs_osi_Free(afs_indexTimes, afs_cacheFiles * sizeof(afs_hyper_t));
afs_osi_Free(afs_indexUnique, afs_cacheFiles * sizeof(afs_uint32));
afs_osi_Free(afs_indexFlags, afs_cacheFiles * sizeof(u_char));
- afs_osi_Free(afs_Initial_freeDSList, afs_dcentries * sizeof(struct dcache));
+ afs_osi_Free(afs_Initial_freeDSList,
+ afs_dcentries * sizeof(struct dcache));
#ifdef KERNEL_HAVE_PIN
unpin((char *)afs_dcnextTbl, afs_cacheFiles * sizeof(afs_int32));
unpin((char *)afs_dvnextTbl, afs_cacheFiles * sizeof(afs_int32));
unpin((char *)afs_indexTable, afs_cacheFiles * sizeof(struct dcache *));
unpin((char *)afs_indexTimes, afs_cacheFiles * sizeof(afs_hyper_t));
unpin((char *)afs_indexUnique, afs_cacheFiles * sizeof(afs_uint32));
- unpin((u_char *)afs_indexFlags, afs_cacheFiles * sizeof(u_char));
+ unpin((u_char *) afs_indexFlags, afs_cacheFiles * sizeof(u_char));
unpin(afs_Initial_freeDSList, afs_dcentries * sizeof(struct dcache));
#endif
- for(i=0;i< afs_dhashsize;i++) {
+ for (i = 0; i < afs_dhashsize; i++) {
afs_dvhashTbl[i] = NULLIDX;
afs_dchashTbl[i] = NULLIDX;
}
+ afs_osi_Free(afs_dvhashTbl, afs_dhashsize * sizeof(afs_int32));
+ afs_osi_Free(afs_dchashTbl, afs_dhashsize * sizeof(afs_int32));
afs_blocksUsed = afs_dcentries = 0;
hzero(afs_indexCounter);
- afs_freeDCCount = 0;
+ afs_freeDCCount = 0;
afs_freeDCList = NULLIDX;
afs_discardDCList = NULLIDX;
afs_freeDSList = afs_Initial_freeDSList = 0;
git://git.openafs.org / openafs.git / blobdiff