#define AFS_VFSFSID AFS_MOUNT_AFS
#endif
#endif
+/* use this value for reporting total space, free space, etc.
+ * fake a high number to satisfy programs that use the statfs call to make sure
+ * that there's enough space in the device partition before storing something
+ * there. keep it just under 2^31, to try and be safe about not breaking
+ * stuff that looks at the amount of free space. */
+#define AFS_VFS_FAKEFREE (2147483647)
/* Moved from VNOPS/afs_vnop_flocks so can be used in prototypes */
#if defined(AFS_HPUX102_ENV)
#define NVOLS 64 /* hash table size for volume table */
#define NFENTRIES 256 /* hash table size for disk volume table */
#define VCSIZE 1024 /* stat cache hash table size */
-#define DCSIZE 512 /* disk cache hash table size */
#define CBRSIZE 512 /* call back returns hash table size */
#define PIGGYSIZE 1350 /* max piggyback size */
#define MAXVOLS 128 /* max vols we can store */
#define AFS_MAXCBRSCALL 32 /* max to return in a given call (must be <= AFSCBMAX) */
-#define AFS_SALLOC_LOW_WATER 250 /* Min free blocks before allocating more */
-#define AFS_LRALLOCSIZ 4096 /* "Large" allocated size */
#define VCACHE_FREE 5
#define AFS_NRXPACKETS 80
#define AFS_RXDEADTIME 50
afs_ucred_t *cred; /* credentials to use for operation */
afs_size_t size_parm[BPARMS]; /* random parameters */
void *ptr_parm[BPARMS]; /* pointer parameters */
- afs_int32 code; /* return code */
+ afs_int32 code_raw; /* return code from AFS routines */
+ afs_int32 code_checkcode; /* the afs_CheckCode-translated code */
short refCount; /* use counter for this structure */
char opcode; /* what to do (store, fetch, etc) */
char flags; /* free, etc */
#define CBulkStat 0x00020000 /* loaded by a bulk stat, and not ref'd since */
#define CUnlinkedDel 0x00040000
#define CVFlushed 0x00080000
-#ifdef AFS_LINUX22_ENV
-#define CPageWrite 0x00200000 /* to detect vm deadlock - linux */
-#elif defined(AFS_SGI_ENV)
+#if defined(AFS_SGI_ENV)
#define CWritingUFS 0x00200000 /* to detect vm deadlock - used by sgi */
#elif defined(AFS_DARWIN80_ENV)
#define CEvent 0x00200000 /* to preclude deadlock when sending events */
struct afs_vnuniq oldParent;
};
+/* Values for 'mvstat' in struct vcache */
+#define AFS_MVSTAT_FILE (0x0) /* regular file or directory */
+#define AFS_MVSTAT_MTPT (0x1) /* mountpoint */
+#define AFS_MVSTAT_ROOT (0x2) /* volume root dir */
+
#ifdef AFS_SUN5_ENV
/*
* This is for the multiPage field in struct vcache. Each one of these
krwlock_t rwlock;
struct cred *credp;
#endif
-#ifdef AFS_BOZONLOCK_ENV
- afs_bozoLock_t pvnLock; /* see locks.x */
-#endif
#ifdef AFS_AIX32_ENV
afs_lock_t pvmlock;
vmhandle_t vmh;
#endif
#endif
- struct VenusFid *mvid; /* Either parent dir (if root) or root (if mt pt) */
+ union {
+ char *silly_name; /* For sillyrenamed regular files, the silly
+ * name the file was renamed to. */
+ struct VenusFid *target_root; /* For mountpoints, the fid of the root dir
+ * in the target volume. */
+ struct VenusFid *parent; /* For root dir vcaches, the fid of the
+ * parent dir. */
+ } mvid;
+
char *linkData; /* Link data if a symlink. */
afs_hyper_t flushDV; /* data version last flushed from text */
afs_hyper_t mapDV; /* data version last flushed from map */
short execsOrWriters; /* The number of execs (if < 0) or writers (if > 0) of
* this file. */
short flockCount; /* count of flock readers, or -1 if writer */
- char mvstat; /* 0->normal, 1->mt pt, 2->root. */
+ char mvstat; /* see the AFS_MVSTAT_* constants */
char cachingStates; /* Caching policies for this file */
afs_uint32 cachingTransitions; /* # of times file has flopped between caching and not */
#if !defined(UKERNEL)
void *vpacRock; /* used to read or write in visible partitions */
#endif
+ afs_uint32 lastBRLWarnTime; /* last time we warned about byte-range locks */
+#ifdef AFS_LINUX26_ENV
+ spinlock_t pagewriter_lock;
+ struct list_head pagewriters; /* threads that are writing vm pages */
+#endif
};
+#ifdef AFS_LINUX26_ENV
+struct pagewriter {
+ struct list_head link;
+ pid_t writer;
+};
+#endif
+
#define DONT_CHECK_MODE_BITS 0
#define CHECK_MODE_BITS 1
#define CMB_ALLOW_EXEC_AS_READ 2 /* For the NFS xlator */
(((rw) == UIO_WRITE) ? afs_write(avc, uio, io, cred, 1) : afs_read(avc, uio, cred, 1))
/* Cache size truncation uses the following low and high water marks:
- * If the cache is more than 95% full (CM_DCACHECOUNTFREEPCT), the cache
- * truncation daemon is awakened and will free up space until the cache is 85%
- * (CM_DCACHESPACEFREEPCT - CM_DCACHEEXTRAPCT) full.
+ * If the cache is more than 90% full by space (CM_DCACHESPACEFREEPCT) or
+ * 95% full by # of chunks (CM_DCACHECOUNTFREEPCT), the cache truncation
+ * daemon is awakened and will start freeing space. The cache truncation
+ * daemon will continue to free space until the cache is at most 85% full
+ * by space (CM_DCACHESPACEFREEPCT - CM_DCACHEEXTRAPCT). The cache truncation
+ * daemon will also try to free space until the cache is at most 90% full by
+ * chunks (CM_DCACHECOUNTFREEPCT - CM_DCACHEEXTRAPCT), but the 85% space limit
+ * is the only limit that we must hit.
* afs_UFSWrite and afs_GetDCache (when it needs to fetch data) will wait on
* afs_WaitForCacheDrain if the cache is 98% (CM_WAITFORDRAINPCT) full.
* afs_GetDownD wakes those processes once the cache is 95% full
#define afs_CacheIsTooFull() \
(afs_blocksUsed - afs_blocksDiscarded > \
- PERCENT(CM_DCACHECOUNTFREEPCT, afs_cacheBlocks) || \
+ PERCENT(CM_DCACHESPACEFREEPCT, afs_cacheBlocks) || \
afs_freeDCCount - afs_discardDCCount < \
PERCENT(100 - CM_DCACHECOUNTFREEPCT, afs_cacheFiles))
};
extern int afs_fakestat_enable;
+extern int afs_rmtsys_enable;
extern int afsd_dynamic_vcaches;
/*
git://git.openafs.org / openafs.git / blobdiff