#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/version.h>
+/* XXX ugh */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include <linux/ext3_xattr.h>
+ #include <linux/ext3_xattr.h>
#else
-#include <ext3/xattr.h>
+ #include <linux/../../fs/ext3/xattr.h>
#endif
-
#include <linux/kp30.h>
#include <linux/lustre_fsfilt.h>
#include <linux/obd.h>
#include <linux/obd_class.h>
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-#include <linux/module.h>
-#include <linux/iobuf.h>
-#endif
-
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
-#include <linux/ext3_extents.h>
-#endif
static kmem_cache_t *fcb_cache;
static atomic_t fcb_cache_count = ATOMIC_INIT(0);
#endif
#define XATTR_LUSTRE_MDS_LOV_EA "lov"
+#define EXT3_XATTR_INDEX_LUSTRE 5 /* old */
+#define XATTR_LUSTRE_MDS_OBJID "system.lustre_mds_objid" /* old */
+
/*
* We don't currently need any additional blocks for rmdir and
* unlink transactions because we are storing the OST oa_id inside
goto journal_start;
}
- /* XXX BUG 3188 -- must return to one set of opcodes */
- /* FIXME - cache hook */
- if (op & 0x20) {
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
- op = op & ~0x20;
- }
-
- /* FIXME - kml */
- if (op & 0x10) {
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
- op = op & ~0x10;
- }
-
switch(op) {
case FSFILT_OP_RMDIR:
case FSFILT_OP_UNLINK:
nblocks = (LLOG_CHUNK_SIZE >> inode->i_blkbits) +
EXT3_DELETE_TRANS_BLOCKS * logs;
break;
- case FSFILT_OP_NOOP:
- nblocks += EXT3_INDEX_EXTRA_TRANS_BLOCKS+EXT3_DATA_TRANS_BLOCKS;
- break;
default: CERROR("unknown transaction start op %d\n", op);
- LBUG();
+ LBUG();
}
LASSERT(current->journal_info == desc_private);
rc = journal_stop(handle);
unlock_kernel();
+ // LASSERT(current->journal_info == NULL);
return rc;
}
static int fsfilt_ext3_commit_async(struct inode *inode, void *h,
- void **wait_handle)
+ void **wait_handle)
{
- unsigned long tid;
transaction_t *transaction;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
- unsigned long rtid;
-#endif
+ unsigned long tid, rtid;
handle_t *handle = h;
journal_t *journal;
int rc;
tid_t tid = (tid_t)(long)h;
CDEBUG(D_INODE, "commit wait: %lu\n", (unsigned long) tid);
- if (is_journal_aborted(EXT3_JOURNAL(inode)))
+ if (is_journal_aborted(EXT3_JOURNAL(inode)))
return -EIO;
log_wait_commit(EXT3_JOURNAL(inode), tid);
RETURN(rc);
}
+#undef INLINE_EA
+#undef OLD_EA
static int fsfilt_ext3_set_md(struct inode *inode, void *handle,
void *lmm, int lmm_size)
{
- int rc;
+ int rc, old_ea = 0;
+#ifdef INLINE_EA /* can go away before 1.0 - just for testing bug 2097 now */
+ /* Nasty hack city - store stripe MD data in the block pointers if
+ * it will fit, because putting it in an EA currently kills the MDS
+ * performance. We'll fix this with "fast EAs" in the future.
+ */
+ if (inode->i_blocks == 0 && lmm_size <= sizeof(EXT3_I(inode)->i_data) -
+ sizeof(EXT3_I(inode)->i_data[0])) {
+ unsigned old_size = EXT3_I(inode)->i_data[0];
+ if (old_size != 0) {
+ LASSERT(old_size < sizeof(EXT3_I(inode)->i_data));
+ CERROR("setting EA on %lu/%u again... interesting\n",
+ inode->i_ino, inode->i_generation);
+ }
+
+ EXT3_I(inode)->i_data[0] = cpu_to_le32(lmm_size);
+ memcpy(&EXT3_I(inode)->i_data[1], lmm, lmm_size);
+ mark_inode_dirty(inode);
+ return 0;
+ }
+#endif
+#ifdef OLD_EA
/* keep this when we get rid of OLD_EA (too noisy during conversion) */
- if (EXT3_I(inode)->i_file_acl /* || large inode EA flag */)
+ if (EXT3_I(inode)->i_file_acl /* || large inode EA flag */) {
CWARN("setting EA on %lu/%u again... interesting\n",
inode->i_ino, inode->i_generation);
+ old_ea = 1;
+ }
lock_kernel();
+ /* this can go away before 1.0. For bug 2097 testing only. */
+ rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_LUSTRE,
+ XATTR_LUSTRE_MDS_OBJID, lmm, lmm_size, 0);
+#else
+ lock_kernel();
rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_TRUSTED,
XATTR_LUSTRE_MDS_LOV_EA, lmm, lmm_size, 0);
+ /* This tries to delete the old-format LOV EA, but only as long as we
+ * have successfully saved the new-format LOV EA (we can always try
+ * the conversion again the next time the file is accessed). It is
+ * possible (although unlikely) that the new-format LOV EA couldn't be
+ * saved because it ran out of space but we would need a file striped
+ * over least 123 OSTs before the two EAs filled a 4kB block.
+ *
+ * This can be removed when all filesystems have converted to the
+ * new EA format, but otherwise adds little if any overhead. If we
+ * wanted backward compatibility for existing files, we could keep
+ * the old EA around for a while but we'd have to clean it up later. */
+ if (rc >= 0 && old_ea) {
+ int err = ext3_xattr_set_handle(handle, inode,
+ EXT3_XATTR_INDEX_LUSTRE,
+ XATTR_LUSTRE_MDS_OBJID,
+ NULL, 0, 0);
+ if (err)
+ CERROR("error deleting old LOV EA on %lu/%u: rc %d\n",
+ inode->i_ino, inode->i_generation, err);
+ }
+#endif
unlock_kernel();
if (rc)
LASSERT(down_trylock(&inode->i_sem) != 0);
lock_kernel();
+ /* Keep support for reading "inline EAs" until we convert
+ * users over to new format entirely. See bug 841/2097. */
+ if (inode->i_blocks == 0 && EXT3_I(inode)->i_data[0]) {
+ unsigned size = le32_to_cpu(EXT3_I(inode)->i_data[0]);
+ void *handle;
+
+ LASSERT(size < sizeof(EXT3_I(inode)->i_data));
+ if (lmm) {
+ if (size > lmm_size) {
+ CERROR("inline EA on %lu/%u bad size %u > %u\n",
+ inode->i_ino, inode->i_generation,
+ size, lmm_size);
+ return -ERANGE;
+ }
+ memcpy(lmm, &EXT3_I(inode)->i_data[1], size);
+ }
+
+#ifndef INLINE_EA
+ /* migrate LOV EA data to external block - keep same format */
+ CWARN("DEBUG: migrate inline EA for inode %lu/%u to block\n",
+ inode->i_ino, inode->i_generation);
+
+ handle = journal_start(EXT3_JOURNAL(inode),
+ EXT3_XATTR_TRANS_BLOCKS);
+ if (!IS_ERR(handle)) {
+ int err;
+ rc = fsfilt_ext3_set_md(inode, handle,
+ &EXT3_I(inode)->i_data[1],size);
+ if (rc == 0) {
+ memset(EXT3_I(inode)->i_data, 0,
+ sizeof(EXT3_I(inode)->i_data));
+ mark_inode_dirty(inode);
+ }
+ err = journal_stop(handle);
+ if (err && rc == 0)
+ rc = err;
+ } else {
+ rc = PTR_ERR(handle);
+ }
+#endif
+ unlock_kernel();
+ return size;
+ }
rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED,
XATTR_LUSTRE_MDS_LOV_EA, lmm, lmm_size);
+ /* try old EA type if new one failed - MDS will convert it for us */
+ if (rc == -ENODATA) {
+ CDEBUG(D_INFO,"failed new LOV EA %d/%s from inode %lu: rc %d\n",
+ EXT3_XATTR_INDEX_TRUSTED, XATTR_LUSTRE_MDS_LOV_EA,
+ inode->i_ino, rc);
+
+ rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_LUSTRE,
+ XATTR_LUSTRE_MDS_OBJID, lmm, lmm_size);
+ }
unlock_kernel();
/* This gives us the MD size */
if (rc < 0) {
CDEBUG(D_INFO, "error getting EA %d/%s from inode %lu: rc %d\n",
- EXT3_XATTR_INDEX_TRUSTED, XATTR_LUSTRE_MDS_LOV_EA,
+ EXT3_XATTR_INDEX_LUSTRE, XATTR_LUSTRE_MDS_OBJID,
inode->i_ino, rc);
memset(lmm, 0, lmm_size);
return (rc == -ENODATA) ? 0 : rc;
return rc;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-static int fsfilt_ext3_send_bio(struct inode *inode, struct bio *bio)
-{
- submit_bio(WRITE, bio);
- return 0;
-}
-#else
-static int fsfilt_ext3_send_bio(struct inode *inode, struct kiobuf *bio)
-{
- int rc, blocks_per_page;
-
- rc = brw_kiovec(WRITE, 1, &bio, inode->i_dev,
- bio->blocks, 1 << inode->i_blkbits);
-
- blocks_per_page = PAGE_SIZE >> inode->i_blkbits;
-
- if (rc != (1 << inode->i_blkbits) * bio->nr_pages *
- blocks_per_page) {
- CERROR("short write? expected %d, wrote %d\n",
- (1 << inode->i_blkbits) * bio->nr_pages *
- blocks_per_page, rc);
- }
-
- return rc;
-}
-#endif
-
-/* FIXME-UMKA: This should be used in 2.6.x io code later. */
-static struct page *fsfilt_ext3_getpage(struct inode *inode, long int index)
-{
- int rc;
- struct page *page;
-
- page = grab_cache_page(inode->i_mapping, index);
- if (page == NULL)
- return ERR_PTR(-ENOMEM);
-
- if (PageUptodate(page)) {
- unlock_page(page);
- return page;
- }
-
- rc = inode->i_mapping->a_ops->readpage(NULL, page);
- if (rc < 0) {
- page_cache_release(page);
- return ERR_PTR(rc);
- }
-
- return page;
-}
-
static ssize_t fsfilt_ext3_readpage(struct file *file, char *buf, size_t count,
loff_t *off)
{
atomic_dec(&fcb_cache_count);
}
-static int fsfilt_ext3_add_journal_cb(struct obd_device *obd,
- struct super_block *sb,
- __u64 last_rcvd,
+static int fsfilt_ext3_add_journal_cb(struct obd_device *obd, __u64 last_rcvd,
void *handle, fsfilt_cb_t cb_func,
void *cb_data)
{
return ext3_force_commit(sb);
}
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
-struct bpointers {
- unsigned long *blocks;
- int *created;
- unsigned long start;
- int num;
- int init_num;
-};
-
-static int ext3_ext_new_extent_cb(struct ext3_extents_tree *tree,
- struct ext3_ext_path *path,
- struct ext3_extent *newex, int exist)
-{
- struct inode *inode = tree->inode;
- struct bpointers *bp = tree->private;
- int count, err, goal;
- unsigned long pblock;
- unsigned long tgen;
- loff_t new_i_size;
- handle_t *handle;
- int i;
-
- i = EXT_DEPTH(tree);
- EXT_ASSERT(i == path->p_depth);
- EXT_ASSERT(path[i].p_hdr);
-
- if (exist) {
- err = EXT_CONTINUE;
- goto map;
- }
-
- tgen = EXT_GENERATION(tree);
- count = ext3_ext_calc_credits_for_insert(tree, path);
- up_write(&EXT3_I(inode)->truncate_sem);
-
- handle = ext3_journal_start(inode, count + EXT3_ALLOC_NEEDED + 1);
- if (IS_ERR(handle)) {
- down_write(&EXT3_I(inode)->truncate_sem);
- return PTR_ERR(handle);
- }
-
- if (tgen != EXT_GENERATION(tree)) {
- /* the tree has changed. so path can be invalid at moment */
- ext3_journal_stop(handle, inode);
- down_write(&EXT3_I(inode)->truncate_sem);
- return EXT_REPEAT;
- }
-
- down_write(&EXT3_I(inode)->truncate_sem);
- goal = ext3_ext_find_goal(inode, path, newex->e_block);
- count = newex->e_num;
- pblock = ext3_new_blocks(handle, inode, &count, goal, &err);
- if (!pblock)
- goto out;
- EXT_ASSERT(count <= newex->e_num);
-
- /* insert new extent */
- newex->e_start = pblock;
- newex->e_num = count;
- err = ext3_ext_insert_extent(handle, tree, path, newex);
- if (err)
- goto out;
-
- /* correct on-disk inode size */
- if (newex->e_num > 0) {
- new_i_size = (loff_t) newex->e_block + newex->e_num;
- new_i_size = new_i_size << inode->i_blkbits;
- if (new_i_size > EXT3_I(inode)->i_disksize) {
- EXT3_I(inode)->i_disksize = new_i_size;
- err = ext3_mark_inode_dirty(handle, inode);
- }
- }
-
-out:
- ext3_journal_stop(handle, inode);
-map:
- if (err >= 0) {
- /* map blocks */
- if (bp->num == 0) {
- CERROR("hmm. why do we find this extent?\n");
- CERROR("initial space: %lu:%u\n",
- bp->start, bp->init_num);
- CERROR("current extent: %u/%u/%u %d\n",
- newex->e_block, newex->e_num,
- newex->e_start, exist);
- }
- i = 0;
- if (newex->e_block < bp->start)
- i = bp->start - newex->e_block;
- if (i >= newex->e_num)
- CERROR("nothing to do?! i = %d, e_num = %u\n",
- i, newex->e_num);
- for (; i < newex->e_num && bp->num; i++) {
- *(bp->created) = (exist == 0 ? 1 : 0);
- bp->created++;
- *(bp->blocks) = newex->e_start + i;
- bp->blocks++;
- bp->num--;
- }
- }
- return err;
-}
-
-int fsfilt_map_nblocks(struct inode *inode, unsigned long block,
- unsigned long num, unsigned long *blocks,
- int *created, int create)
-{
- struct ext3_extents_tree tree;
- struct bpointers bp;
- int err;
-
- CDEBUG(D_OTHER, "blocks %lu-%lu requested for inode %u\n",
- block, block + num, (unsigned) inode->i_ino);
-
- ext3_init_tree_desc(&tree, inode);
- tree.private = &bp;
- bp.blocks = blocks;
- bp.created = created;
- bp.start = block;
- bp.init_num = bp.num = num;
-
- down_write(&EXT3_I(inode)->truncate_sem);
- err = ext3_ext_walk_space(&tree, block, num, ext3_ext_new_extent_cb);
- ext3_ext_invalidate_cache(&tree);
- up_write(&EXT3_I(inode)->truncate_sem);
-
- return err;
-}
-
-int fsfilt_ext3_map_ext_inode_pages(struct inode *inode, struct page **page,
- int pages, unsigned long *blocks,
- int *created, int create)
-{
- int blocks_per_page = PAGE_SIZE >> inode->i_blkbits;
- int rc = 0, i = 0;
- struct page *fp = NULL;
- int clen = 0;
-
- CDEBUG(D_OTHER, "inode %lu: map %d pages from %lu\n",
- inode->i_ino, pages, (*page)->index);
-
- /* pages are sorted already. so, we just have to find
- * contig. space and process them properly */
- while (i < pages) {
- if (fp == NULL) {
- /* start new extent */
- fp = *page++;
- clen = 1;
- i++;
- continue;
- } else if (fp->index + clen == (*page)->index) {
- /* continue the extent */
- page++;
- clen++;
- i++;
- continue;
- }
-
- /* process found extent */
- rc = fsfilt_map_nblocks(inode, fp->index * blocks_per_page,
- clen * blocks_per_page, blocks,
- created, create);
- if (rc)
- GOTO(cleanup, rc);
-
- /* look for next extent */
- fp = NULL;
- blocks += blocks_per_page * clen;
- created += blocks_per_page * clen;
- }
-
- if (fp)
- rc = fsfilt_map_nblocks(inode, fp->index * blocks_per_page,
- clen * blocks_per_page, blocks,
- created, create);
-cleanup:
- return rc;
-}
-#endif
-
extern int ext3_map_inode_page(struct inode *inode, struct page *page,
unsigned long *blocks, int *created, int create);
-int fsfilt_ext3_map_bm_inode_pages(struct inode *inode, struct page **page,
- int pages, unsigned long *blocks,
- int *created, int create)
+int fsfilt_ext3_map_inode_page(struct inode *inode, struct page *page,
+ unsigned long *blocks, int *created, int create)
{
- int blocks_per_page = PAGE_SIZE >> inode->i_blkbits;
- unsigned long *b;
- int rc = 0, i, *cr;
-
- for (i = 0, cr = created, b = blocks; i < pages; i++, page++) {
- rc = ext3_map_inode_page(inode, *page, b, cr, create);
- if (rc) {
- CERROR("ino %lu, blk %lu cr %u create %d: rc %d\n",
- inode->i_ino, *b, *cr, create, rc);
- break;
- }
-
- b += blocks_per_page;
- cr += blocks_per_page;
- }
- return rc;
-}
-
-int fsfilt_ext3_map_inode_pages(struct inode *inode, struct page **page,
- int pages, unsigned long *blocks,
- int *created, int create,
- struct semaphore *optional_sem)
-{
- int rc;
-#ifdef EXT3_MULTIBLOCK_ALLOCATOR
- if (EXT3_I(inode)->i_flags & EXT3_EXTENTS_FL) {
- rc = fsfilt_ext3_map_ext_inode_pages(inode, page, pages,
- blocks, created, create);
- return rc;
- }
-#endif
- if (optional_sem != NULL)
- down(optional_sem);
- rc = fsfilt_ext3_map_bm_inode_pages(inode, page, pages, blocks,
- created, create);
- if (optional_sem != NULL)
- up(optional_sem);
-
- return rc;
+ return ext3_map_inode_page(inode, page, blocks, created, create);
}
extern int ext3_prep_san_write(struct inode *inode, long *blocks,
return err;
}
-static int fsfilt_ext3_setup(struct super_block *sb)
+static int fsfilt_ext3_setup(struct obd_device *obd, struct super_block *sb)
{
+ struct mds_obd *mds = &obd->u.mds;
#if 0
EXT3_SB(sb)->dx_lock = fsfilt_ext3_dx_lock;
EXT3_SB(sb)->dx_unlock = fsfilt_ext3_dx_unlock;
set_opt(EXT3_SB(sb)->s_mount_opt, PDIROPS);
sb->s_flags |= S_PDIROPS;
#endif
+ /* setup mdsnum in underlying fs */
+#ifdef EXT3_FEATURE_INCOMPAT_MDSNUM
+ if (mds->mds_lmv_obd) {
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+ struct ext3_super_block *es = sbi->s_es;
+ handle_t *handle;
+ int err;
+
+ if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_MDSNUM)) {
+ CWARN("%s: set mdsnum %d in ext3fs\n",
+ obd->obd_name, mds->mds_num);
+ lock_kernel();
+ handle = journal_start(sbi->s_journal, 1);
+ unlock_kernel();
+ LASSERT(!IS_ERR(handle));
+ err = ext3_journal_get_write_access(handle, sbi->s_sbh);
+ LASSERT(err == 0);
+ EXT3_SET_INCOMPAT_FEATURE(sb,
+ EXT3_FEATURE_INCOMPAT_MDSNUM);
+ es->s_mdsnum = mds->mds_num;
+ err = ext3_journal_dirty_metadata(handle, sbi->s_sbh);
+ LASSERT(err == 0);
+ lock_kernel();
+ journal_stop(handle);
+ unlock_kernel();
+ } else {
+ CWARN("%s: mdsnum initialized to %u in ext3fs\n",
+ obd->obd_name, es->s_mdsnum);
+ }
+ sbi->s_mdsnum = es->s_mdsnum;
+ }
+#endif
return 0;
}
-static int fsfilt_ext3_set_xattr(struct inode * inode, void *handle, char *name,
- void *buffer, int buffer_size)
+extern int ext3_add_dir_entry(struct dentry *dentry);
+extern int ext3_del_dir_entry(struct dentry *dentry);
+
+static int fsfilt_ext3_add_dir_entry(struct obd_device *obd,
+ struct dentry *parent,
+ char *name, int namelen,
+ unsigned long ino,
+ unsigned long generation,
+ unsigned mds)
{
- int rc = 0;
+#ifdef EXT3_FEATURE_INCOMPAT_MDSNUM
+ struct dentry *dentry;
+ int err;
+ dentry = ll_lookup_one_len(name, parent, namelen);
+ if (IS_ERR(dentry))
+ RETURN(PTR_ERR(dentry));
+ if (dentry->d_inode != NULL) {
+ CERROR("dentry %*s(0x%p) found\n", dentry->d_name.len,
+ dentry->d_name.name, dentry);
+ l_dput(dentry);
+ RETURN(-EEXIST);
+ }
- lock_kernel();
+ /* mds_reint_rename() may use this method to add dir entry
+ * that points onto local inode. and we don't want to find
+ * it cross-ref by subsequent lookups */
+ d_drop(dentry);
- rc = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_TRUSTED,
- name, buffer, buffer_size, 0);
- unlock_kernel();
- if (rc)
- CERROR("set xattr %s from inode %lu: rc %d\n",
- name, inode->i_ino, rc);
- return rc;
+ dentry->d_flags |= DCACHE_CROSS_REF;
+ dentry->d_inum = ino;
+ dentry->d_mdsnum = mds;
+ dentry->d_generation = generation;
+ err = ext3_add_dir_entry(dentry);
+
+ l_dput(dentry);
+
+ return err;
+#else
+#error "rebuild kernel and lustre with ext3-mds-num patch!"
+ LASSERT(0);
+#endif
}
-static int fsfilt_ext3_get_xattr(struct inode *inode, char *name,
- void *buffer, int buffer_size)
+static int fsfilt_ext3_del_dir_entry(struct obd_device *obd,
+ struct dentry *dentry)
{
- int rc = 0;
- lock_kernel();
-
- rc = ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED,
- name, buffer, buffer_size);
- unlock_kernel();
-
- if (buffer == NULL)
- return (rc == -ENODATA) ? 0 : rc;
- if (rc < 0) {
- CDEBUG(D_INFO, "error getting EA %s from inode %lu: rc %d\n",
- name, inode->i_ino, rc);
- memset(buffer, 0, buffer_size);
- return (rc == -ENODATA) ? 0 : rc;
- }
-
- return rc;
+#ifdef EXT3_FEATURE_INCOMPAT_MDSNUM
+ int err;
+ err = ext3_del_dir_entry(dentry);
+ if (err == 0)
+ d_drop(dentry);
+ return err;
+#else
+#error "rebuild kernel and lustre with ext3-mds-num patch!"
+ LASSERT(0);
+#endif
}
/* If fso is NULL, op is FSFILT operation, otherwise op is number of fso
}
static struct fsfilt_operations fsfilt_ext3_ops = {
- .fs_type = "ext3",
- .fs_owner = THIS_MODULE,
- .fs_start = fsfilt_ext3_start,
- .fs_brw_start = fsfilt_ext3_brw_start,
- .fs_commit = fsfilt_ext3_commit,
- .fs_commit_async = fsfilt_ext3_commit_async,
- .fs_commit_wait = fsfilt_ext3_commit_wait,
- .fs_setattr = fsfilt_ext3_setattr,
- .fs_iocontrol = fsfilt_ext3_iocontrol,
- .fs_set_md = fsfilt_ext3_set_md,
- .fs_get_md = fsfilt_ext3_get_md,
- .fs_readpage = fsfilt_ext3_readpage,
- .fs_add_journal_cb = fsfilt_ext3_add_journal_cb,
- .fs_statfs = fsfilt_ext3_statfs,
- .fs_sync = fsfilt_ext3_sync,
- .fs_map_inode_pages = fsfilt_ext3_map_inode_pages,
- .fs_prep_san_write = fsfilt_ext3_prep_san_write,
- .fs_write_record = fsfilt_ext3_write_record,
- .fs_read_record = fsfilt_ext3_read_record,
- .fs_setup = fsfilt_ext3_setup,
- .fs_getpage = fsfilt_ext3_getpage,
- .fs_send_bio = fsfilt_ext3_send_bio,
- .fs_set_xattr = fsfilt_ext3_set_xattr,
- .fs_get_xattr = fsfilt_ext3_get_xattr,
- .fs_get_op_len = fsfilt_ext3_get_op_len,
+ fs_type: "ext3",
+ fs_owner: THIS_MODULE,
+ fs_start: fsfilt_ext3_start,
+ fs_brw_start: fsfilt_ext3_brw_start,
+ fs_commit: fsfilt_ext3_commit,
+ fs_commit_async: fsfilt_ext3_commit_async,
+ fs_commit_wait: fsfilt_ext3_commit_wait,
+ fs_setattr: fsfilt_ext3_setattr,
+ fs_iocontrol: fsfilt_ext3_iocontrol,
+ fs_set_md: fsfilt_ext3_set_md,
+ fs_get_md: fsfilt_ext3_get_md,
+ fs_readpage: fsfilt_ext3_readpage,
+ fs_add_journal_cb: fsfilt_ext3_add_journal_cb,
+ fs_statfs: fsfilt_ext3_statfs,
+ fs_sync: fsfilt_ext3_sync,
+ fs_map_inode_page: fsfilt_ext3_map_inode_page,
+ fs_prep_san_write: fsfilt_ext3_prep_san_write,
+ fs_write_record: fsfilt_ext3_write_record,
+ fs_read_record: fsfilt_ext3_read_record,
+ fs_setup: fsfilt_ext3_setup,
+ fs_get_op_len: fsfilt_ext3_get_op_len,
+ fs_add_dir_entry: fsfilt_ext3_add_dir_entry,
+ fs_del_dir_entry: fsfilt_ext3_del_dir_entry,
};
static int __init fsfilt_ext3_init(void)
{
int rc;
+ //rc = ext3_xattr_register();
fcb_cache = kmem_cache_create("fsfilt_ext3_fcb",
sizeof(struct fsfilt_cb_data), 0,
0, NULL, NULL);
CERROR("can't free fsfilt callback cache: count %d, rc = %d\n",
atomic_read(&fcb_cache_count), rc);
}
+
+ //rc = ext3_xattr_unregister();
}
module_init(fsfilt_ext3_init);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff