int afs_was_mounted = 0; /* Used to force reload if mount/unmount/mount */
extern struct super_operations afs_sops;
+#if defined(AFS_LINUX26_ENV) && !defined(AFS_NONFSTRANS)
+extern struct export_operations afs_export_ops;
+#endif
extern afs_rwlock_t afs_xvcache;
extern struct afs_q VLRU;
static int afs_root(struct super_block *afsp);
struct super_block *afs_read_super(struct super_block *sb, void *data, int silent);
int afs_fill_super(struct super_block *sb, void *data, int silent);
-static struct super_block *afs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data);
/* afs_file_system
* VFS entry for Linux - installed in init_module
* 2) Mount call comes to us via do_mount -> read_super -> afs_read_super.
* We are expected to setup the super_block. See afs_read_super.
*/
+
+
+/* afs_read_super
+ * read the "super block" for AFS - roughly eguivalent to struct vfs.
+ * dev, covered, s_rd_only, s_dirt, and s_type will be set by read_super.
+ */
#if defined(AFS_LINUX26_ENV)
-struct backing_dev_info afs_backing_dev_info = {
- .ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE,
- .state = 0,
-};
+#ifdef GET_SB_HAS_STRUCT_VFSMOUNT
+int
+afs_get_sb(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data, struct vfsmount *mnt)
+#else
+static struct superblock *
+afs_get_sb(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data)
+#endif
+{
+#ifdef GET_SB_HAS_STRUCT_VFSMOUNT
+ return get_sb_nodev(fs_type, flags, data, afs_fill_super, mnt);
+#else
+ return get_sb_nodev(fs_type, flags, data, afs_fill_super);
+#endif
+}
+
struct file_system_type afs_fs_type = {
.owner = THIS_MODULE,
};
#endif
-/* afs_read_super
- * read the "super block" for AFS - roughly eguivalent to struct vfs.
- * dev, covered, s_rd_only, s_dirt, and s_type will be set by read_super.
- */
#if defined(AFS_LINUX26_ENV)
-static struct super_block *
-afs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data)
-{
- return get_sb_nodev(fs_type, flags, data, afs_fill_super);
-}
+struct backing_dev_info afs_backing_dev_info = {
+ .ra_pages = 0, /* disable readahead, afs does prefetch */
+};
int
afs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_blocksize_bits = 10;
sb->s_magic = AFS_VFSMAGIC;
sb->s_op = &afs_sops; /* Super block (vfs) ops */
+#if defined(HAVE_BDI_INIT)
+ bdi_init(&afs_backing_dev_info);
+#endif
+#if defined(AFS_LINUX26_ENV) && !defined(AFS_NONFSTRANS)
+ sb->s_export_op = &afs_export_ops;
+#endif
#if defined(MAX_NON_LFS)
#ifdef AFS_64BIT_CLIENT
#if !defined(MAX_LFS_FILESIZE)
#if defined(STRUCT_SUPER_HAS_ALLOC_INODE)
+#if defined(HAVE_KMEM_CACHE_T)
static kmem_cache_t *afs_inode_cachep;
+#else
+struct kmem_cache *afs_inode_cachep;
+#endif
static struct inode *
afs_alloc_inode(struct super_block *sb)
{
struct vcache *vcp;
+#if defined(SLAB_KERNEL)
vcp = (struct vcache *) kmem_cache_alloc(afs_inode_cachep, SLAB_KERNEL);
+#else
+ vcp = (struct vcache *) kmem_cache_alloc(afs_inode_cachep, GFP_KERNEL);
+#endif
if (!vcp)
return NULL;
}
static void
+#if defined(HAVE_KMEM_CACHE_T)
init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
+#else
+#if defined(KMEM_CACHE_INIT)
+init_once(struct kmem_cache * cachep, void * foo)
+#else
+init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+#endif
+#endif
{
struct vcache *vcp = (struct vcache *) foo;
+#if defined(SLAB_CTOR_VERIFY)
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR)
+#endif
inode_init_once(AFSTOV(vcp));
}
#define SLAB_RECLAIM_ACCOUNT 0
#endif
+#if defined(KMEM_CACHE_TAKES_DTOR)
afs_inode_cachep = kmem_cache_create("afs_inode_cache",
sizeof(struct vcache),
0, SLAB_HWCACHE_ALIGN | SLAB_RECLAIM_ACCOUNT,
init_once, NULL);
+#else
+ afs_inode_cachep = kmem_cache_create("afs_inode_cache",
+ sizeof(struct vcache),
+ 0, SLAB_HWCACHE_ALIGN | SLAB_RECLAIM_ACCOUNT,
+ init_once);
+#endif
if (afs_inode_cachep == NULL)
return -ENOMEM;
return 0;
void
afs_destroy_inodecache(void)
{
- if (kmem_cache_destroy(afs_inode_cachep))
- printk(KERN_INFO "afs_inode_cache: not all structures were freed\n");
+ if (afs_inode_cachep)
+ (void) kmem_cache_destroy(afs_inode_cachep);
}
#else
int
#endif
}
-/* afs_put_inode
- * Linux version of inactive. When refcount == 2, we are about to
- * decrement to 1 and the only reference remaining should be for
- * the VLRU
- */
-
-static void
-afs_put_inode(struct inode *ip)
-{
- struct vcache *vcp = VTOAFS(ip);
-
- if (VREFCOUNT(vcp) == 2) {
- AFS_GLOCK();
- if (VREFCOUNT(vcp) == 2)
- afs_InactiveVCache(vcp, NULL);
- AFS_GUNLOCK();
- }
-}
-
/* afs_put_super
* Called from unmount to release super_block. */
static void
#endif
osi_linux_verify_alloced_memory();
+#if defined(HAVE_BDI_INIT)
+ bdi_destroy(&afs_backing_dev_info);
+#endif
AFS_GUNLOCK();
sbp->s_dev = 0;
*/
#if defined(AFS_LINUX26_ENV)
int
+#if defined(STATFS_TAKES_DENTRY)
+afs_statfs(struct dentry *dentry, struct kstatfs *statp)
+#else
afs_statfs(struct super_block *sbp, struct kstatfs *statp)
+#endif
#elif defined(AFS_LINUX24_ENV)
int
afs_statfs(struct super_block *sbp, struct statfs *statp)
AFS_STATCNT(afs_statfs);
- statp->f_type = 0; /* Can we get a real type sometime? */
+ /* hardcode in case that which is giveth is taken away */
+ statp->f_type = 0x5346414F;
+#if defined(STATFS_TAKES_DENTRY)
+ statp->f_bsize = dentry->d_sb->s_blocksize;
+#else
statp->f_bsize = sbp->s_blocksize;
+#endif
statp->f_blocks = statp->f_bfree = statp->f_bavail = statp->f_files =
statp->f_ffree = 9000000;
statp->f_fsid.val[0] = AFS_VFSMAGIC;
.destroy_inode = afs_destroy_inode,
#endif
.clear_inode = afs_clear_inode,
- .put_inode = afs_put_inode,
.put_super = afs_put_super,
.statfs = afs_statfs,
#if !defined(AFS_LINUX24_ENV)
ip->i_ino = vp->va_nodeid;
ip->i_nlink = vp->va_nlink;
ip->i_blocks = vp->va_blocks;
+#ifdef STRUCT_INODE_HAS_I_BLKBITS
+ ip->i_blkbits = AFS_BLKBITS;
+#endif
+#ifdef STRUCT_INODE_HAS_I_BLKSIZE
ip->i_blksize = vp->va_blocksize;
+#endif
ip->i_rdev = vp->va_rdev;
ip->i_mode = vp->va_mode;
ip->i_uid = vp->va_uid;
ip->i_gid = vp->va_gid;
- ip->i_size = vp->va_size;
+ i_size_write(ip, vp->va_size);
#if defined(AFS_LINUX26_ENV)
ip->i_atime.tv_sec = vp->va_atime.tv_sec;
+ ip->i_atime.tv_nsec = 0;
ip->i_mtime.tv_sec = vp->va_mtime.tv_sec;
+ /* Set the mtime nanoseconds to the sysname generation number.
+ * This convinces NFS clients that all directories have changed
+ * any time the sysname list changes.
+ */
+ ip->i_mtime.tv_nsec = afs_sysnamegen;
ip->i_ctime.tv_sec = vp->va_ctime.tv_sec;
+ ip->i_ctime.tv_nsec = 0;
#else
ip->i_atime = vp->va_atime.tv_sec;
ip->i_mtime = vp->va_mtime.tv_sec;
ip->i_ctime = vp->va_ctime.tv_sec;
#endif
}
+
+/* osi_linux_free_inode_pages
+ *
+ * Free all vnodes remaining in the afs hash. Must be done before
+ * shutting down afs and freeing all memory.
+ */
+void
+osi_linux_free_inode_pages(void)
+{
+ int i;
+ struct vcache *tvc, *nvc;
+ extern struct vcache *afs_vhashT[VCSIZE];
+
+ for (i = 0; i < VCSIZE; i++) {
+ for (tvc = afs_vhashT[i]; tvc; ) {
+ int slept;
+
+ nvc = tvc->hnext;
+ if (afs_FlushVCache(tvc, &slept)) /* slept always 0 for linux? */
+ printf("Failed to invalidate all pages on inode 0x%p\n", tvc);
+ tvc = nvc;
+ }
+ }
+}
git://git.openafs.org / openafs.git / blobdiff