#include "afsincludes.h" /* Afs-based standard headers */
#include "afs/afs_stats.h" /* afs statistics */
#include "h/smp_lock.h"
-#if defined(AFS_LINUX26_ENV)
-#include "h/namei.h"
-#endif
-#if defined(LINUX_USE_FH)
-#include "h/exportfs.h"
-int cache_fh_type = -1;
-int cache_fh_len = -1;
-#endif
afs_lock_t afs_xosi; /* lock is for tvattr */
extern struct osi_dev cacheDev;
#endif
extern struct super_block *afs_cacheSBp;
-#if defined(AFS_LINUX26_ENV)
-struct file *
-afs_linux_raw_open(afs_dcache_id_t *ainode, ino_t *hint)
-{
- struct inode *tip = NULL;
- struct dentry *dp = NULL;
- struct file* filp;
-
-#if !defined(LINUX_USE_FH)
- tip = iget(afs_cacheSBp, ainode->ufs);
- if (!tip)
- osi_Panic("Can't get inode %d\n", (int) ainode->ufs);
-
- dp = d_alloc_anon(tip);
-#else
- dp = afs_cacheSBp->s_export_op->fh_to_dentry(afs_cacheSBp, &ainode->ufs.fh,
- cache_fh_len, cache_fh_type);
- if (!dp)
- osi_Panic("Can't get dentry\n");
- tip = dp->d_inode;
-#endif
- tip->i_flags |= MS_NOATIME; /* Disable updating access times. */
-
-#if defined(STRUCT_TASK_HAS_CRED)
- filp = dentry_open(dp, mntget(afs_cacheMnt), O_RDWR, current_cred());
-#else
- filp = dentry_open(dp, mntget(afs_cacheMnt), O_RDWR);
-#endif
- if (IS_ERR(filp))
-#if defined(LINUX_USE_FH)
- osi_Panic("Can't open file\n");
-#else
- osi_Panic("Can't open inode %d\n", (int) ainode->ufs);
-#endif
- if (hint)
- *hint = tip->i_ino;
- return filp;
-}
-
-void *
-osi_UFSOpen(afs_dcache_id_t *ainode)
-{
- struct osi_file *afile = NULL;
- extern int cacheDiskType;
- struct file *filp = NULL;
- AFS_STATCNT(osi_UFSOpen);
- if (cacheDiskType != AFS_FCACHE_TYPE_UFS) {
- osi_Panic("UFSOpen called for non-UFS cache\n");
- }
- if (!afs_osicred_initialized) {
- /* valid for alpha_osf, SunOS, Ultrix */
- memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
- crhold(&afs_osi_cred); /* don't let it evaporate, since it is static */
- afs_osicred_initialized = 1;
- }
- afile = (struct osi_file *)osi_AllocLargeSpace(sizeof(struct osi_file));
- AFS_GUNLOCK();
- if (!afile) {
- osi_Panic("osi_UFSOpen: Failed to allocate %d bytes for osi_file.\n",
- (int)sizeof(struct osi_file));
- }
- memset(afile, 0, sizeof(struct osi_file));
-
- afile->filp = afs_linux_raw_open(ainode, &afile->inum);
- afile->size = i_size_read(FILE_INODE(afile->filp));
- AFS_GLOCK();
- afile->offset = 0;
- afile->proc = (int (*)())0;
- return (void *)afile;
-}
-#else
void *
osi_UFSOpen(afs_dcache_id_t *ainode)
{
AFS_GLOCK();
afile->offset = 0;
afile->proc = (int (*)())0;
- afile->inum = ainode->ufs; /* for hint validity checking */
return (void *)afile;
}
-#endif
-#if defined(LINUX_USE_FH)
-/*
- * Given a dentry, return the file handle as encoded by the filesystem.
- * We can't assume anything about the length (words, not bytes).
- * The cache has to live on a single filesystem with uniform file
- * handles, otherwise we panic.
- */
-void osi_get_fh(struct dentry *dp, afs_ufs_dcache_id_t *ainode) {
- int max_len;
- int type;
-
- if (cache_fh_len > 0)
- max_len = cache_fh_len;
- else
- max_len = MAX_FH_LEN;
- if (dp->d_sb->s_export_op->encode_fh) {
- type = dp->d_sb->s_export_op->encode_fh(dp, &ainode->raw[0], &max_len, 0);
- if (type == 255) {
- osi_Panic("File handle encoding failed\n");
- }
- if (cache_fh_type < 0)
- cache_fh_type = type;
- if (cache_fh_len < 0) {
- cache_fh_len = max_len;
- }
- if (type != cache_fh_type || max_len != cache_fh_len) {
- osi_Panic("Inconsistent file handles within cache\n");
- }
- } else {
- /* If fs doesn't provide an encode_fh method, assume the default INO32 type */
- if (cache_fh_type < 0)
- cache_fh_type = FILEID_INO32_GEN;
- if (cache_fh_len < 0)
- cache_fh_len = sizeof(struct fid)/4;
- ainode->fh.i32.ino = dp->d_inode->i_ino;
- ainode->fh.i32.gen = dp->d_inode->i_generation;
- }
-}
-#else
void osi_get_fh(struct dentry *dp, afs_ufs_dcache_id_t *ainode) {
*ainode = dp->d_inode->i_ino;
}
-#endif
int
afs_osi_Stat(register struct osi_file *afile, register struct osi_stat *astat)
{
register afs_int32 code;
AFS_STATCNT(osi_Stat);
- MObtainWriteLock(&afs_xosi, 320);
+ ObtainWriteLock(&afs_xosi, 320);
astat->size = i_size_read(OSIFILE_INODE(afile));
-#if defined(AFS_LINUX26_ENV)
- astat->mtime = OSIFILE_INODE(afile)->i_mtime.tv_sec;
- astat->atime = OSIFILE_INODE(afile)->i_atime.tv_sec;
-#else
astat->mtime = OSIFILE_INODE(afile)->i_mtime;
astat->atime = OSIFILE_INODE(afile)->i_atime;
-#endif
code = 0;
- MReleaseWriteLock(&afs_xosi);
+ ReleaseWriteLock(&afs_xosi);
return code;
}
-#ifdef AFS_LINUX26_ENV
-int
-osi_UFSClose(register struct osi_file *afile)
-{
- AFS_STATCNT(osi_Close);
- if (afile) {
- if (OSIFILE_INODE(afile)) {
- filp_close(afile->filp, NULL);
- }
- }
-
- osi_FreeLargeSpace(afile);
- return 0;
-}
-#else
int
osi_UFSClose(register struct osi_file *afile)
{
osi_FreeLargeSpace(afile);
return 0;
}
-#endif
int
osi_UFSTruncate(register struct osi_file *afile, afs_int32 asize)
code = afs_osi_Stat(afile, &tstat);
if (code || tstat.size <= asize)
return code;
- MObtainWriteLock(&afs_xosi, 321);
+ ObtainWriteLock(&afs_xosi, 321);
AFS_GUNLOCK();
#ifdef STRUCT_INODE_HAS_I_ALLOC_SEM
down_write(&inode->i_alloc_sem);
code = inode_change_ok(inode, &newattrs);
if (!code) {
#ifdef INODE_SETATTR_NOT_VOID
-#if defined(AFS_LINUX26_ENV)
- if (inode->i_op && inode->i_op->setattr)
- code = inode->i_op->setattr(afile->filp->f_dentry, &newattrs);
- else
-#endif
- code = inode_setattr(inode, &newattrs);
+ code = inode_setattr(inode, &newattrs);
#else
inode_setattr(inode, &newattrs);
#endif
up_write(&inode->i_alloc_sem);
#endif
AFS_GLOCK();
- MReleaseWriteLock(&afs_xosi);
+ ReleaseWriteLock(&afs_xosi);
return code;
}
int
osi_rdwr(struct osi_file *osifile, uio_t * uiop, int rw)
{
-#ifdef AFS_LINUX26_ENV
- struct file *filp = osifile->filp;
-#else
struct file *filp = &osifile->file;
-#endif
KERNEL_SPACE_DECL;
int code = 0;
struct iovec *iov;
git://git.openafs.org / openafs.git / blobdiff