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authorJoel Becker <joel.becker@oracle.com>2009-08-19 13:13:50 +0400
committerJoel Becker <joel.becker@oracle.com>2010-02-27 02:41:13 +0300
commitd3981544d7a4ed276966cdd58fe2f5d6e8a585d9 (patch)
treea2a90d6a67c40fac4b56edd524b08a8c52179570 /fs/ocfs2
parentc5d95df5f78312c879f3058059c98a08821897a5 (diff)
downloadlinux-d3981544d7a4ed276966cdd58fe2f5d6e8a585d9.tar.xz
ocfs2: Set xattr block entries with ocfs2_xa_set()
ocfs2_xattr_block_set() calls into ocfs2_xattr_set_entry() with just the HAS_XATTR flag. Most of the machinery of ocfs2_xattr_set_entry() is skipped. All that really happens other than the call to ocfs2_xa_set() is making sure the HAS_XATTR flag is set on the inode. But HAS_XATTR should be set when we also set di->i_xattr_loc. And that's done in ocfs2_create_xattr_block(). So let's move it there, and then ocfs2_xattr_block_set() can just call ocfs2_xa_set(). While we're there, ocfs2_create_xattr_block() can take the set_ctxt for a smaller argument list. It also learns to set HAS_XATTR_FL, because it knows for sure. ocfs2_create_empty_xatttr_block() in the reflink path fakes a set_ctxt to call ocfs2_create_xattr_block(). Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/xattr.c99
1 files changed, 49 insertions, 50 deletions
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index e7630a77a6c8..fb8568d1e8a1 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -2206,10 +2206,8 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
int ret;
struct ocfs2_xa_loc loc;
- if (!(flag & OCFS2_INLINE_XATTR_FL))
- BUG_ON(xs->xattr_bh == xs->inode_bh);
- else
- BUG_ON(xs->xattr_bh != xs->inode_bh);
+ BUG_ON(!(flag & OCFS2_INLINE_XATTR_FL));
+ BUG_ON(xs->xattr_bh != xs->inode_bh);
ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), xs->inode_bh,
OCFS2_JOURNAL_ACCESS_WRITE);
@@ -2218,13 +2216,8 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
goto out;
}
- if (xs->xattr_bh == xs->inode_bh)
- ocfs2_init_dinode_xa_loc(&loc, inode, xs->inode_bh,
- xs->not_found ? NULL : xs->here);
- else
- ocfs2_init_xattr_block_xa_loc(&loc, inode, xs->xattr_bh,
- xs->not_found ? NULL : xs->here);
-
+ ocfs2_init_dinode_xa_loc(&loc, inode, xs->inode_bh,
+ xs->not_found ? NULL : xs->here);
ret = ocfs2_xa_set(&loc, xi, ctxt);
if (ret) {
if (ret != -ENOSPC)
@@ -2233,8 +2226,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
}
xs->here = loc.xl_entry;
- if (!(oi->ip_dyn_features & OCFS2_INLINE_XATTR_FL) &&
- (flag & OCFS2_INLINE_XATTR_FL)) {
+ if (!(oi->ip_dyn_features & OCFS2_INLINE_XATTR_FL)) {
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
unsigned int xattrsize = osb->s_xattr_inline_size;
@@ -2254,7 +2246,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
}
/* Update xattr flag */
spin_lock(&oi->ip_lock);
- oi->ip_dyn_features |= flag;
+ oi->ip_dyn_features |= OCFS2_INLINE_XATTR_FL;
di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
spin_unlock(&oi->ip_lock);
@@ -2748,12 +2740,11 @@ cleanup:
return ret;
}
-static int ocfs2_create_xattr_block(handle_t *handle,
- struct inode *inode,
+static int ocfs2_create_xattr_block(struct inode *inode,
struct buffer_head *inode_bh,
- struct ocfs2_alloc_context *meta_ac,
- struct buffer_head **ret_bh,
- int indexed)
+ struct ocfs2_xattr_set_ctxt *ctxt,
+ int indexed,
+ struct buffer_head **ret_bh)
{
int ret;
u16 suballoc_bit_start;
@@ -2764,14 +2755,14 @@ static int ocfs2_create_xattr_block(handle_t *handle,
struct buffer_head *new_bh = NULL;
struct ocfs2_xattr_block *xblk;
- ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), inode_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_di(ctxt->handle, INODE_CACHE(inode),
+ inode_bh, OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
goto end;
}
- ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(osb, ctxt->handle, ctxt->meta_ac, 1,
&suballoc_bit_start, &num_got,
&first_blkno);
if (ret < 0) {
@@ -2782,7 +2773,7 @@ static int ocfs2_create_xattr_block(handle_t *handle,
new_bh = sb_getblk(inode->i_sb, first_blkno);
ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), new_bh);
- ret = ocfs2_journal_access_xb(handle, INODE_CACHE(inode),
+ ret = ocfs2_journal_access_xb(ctxt->handle, INODE_CACHE(inode),
new_bh,
OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
@@ -2794,11 +2785,10 @@ static int ocfs2_create_xattr_block(handle_t *handle,
xblk = (struct ocfs2_xattr_block *)new_bh->b_data;
memset(xblk, 0, inode->i_sb->s_blocksize);
strcpy((void *)xblk, OCFS2_XATTR_BLOCK_SIGNATURE);
- xblk->xb_suballoc_slot = cpu_to_le16(meta_ac->ac_alloc_slot);
+ xblk->xb_suballoc_slot = cpu_to_le16(ctxt->meta_ac->ac_alloc_slot);
xblk->xb_suballoc_bit = cpu_to_le16(suballoc_bit_start);
xblk->xb_fs_generation = cpu_to_le32(osb->fs_generation);
xblk->xb_blkno = cpu_to_le64(first_blkno);
-
if (indexed) {
struct ocfs2_xattr_tree_root *xr = &xblk->xb_attrs.xb_root;
xr->xt_clusters = cpu_to_le32(1);
@@ -2809,14 +2799,17 @@ static int ocfs2_create_xattr_block(handle_t *handle,
xr->xt_list.l_next_free_rec = cpu_to_le16(1);
xblk->xb_flags = cpu_to_le16(OCFS2_XATTR_INDEXED);
}
+ ocfs2_journal_dirty(ctxt->handle, new_bh);
- ret = ocfs2_journal_dirty(handle, new_bh);
- if (ret < 0) {
- mlog_errno(ret);
- goto end;
- }
+ /* Add it to the inode */
di->i_xattr_loc = cpu_to_le64(first_blkno);
- ocfs2_journal_dirty(handle, inode_bh);
+
+ spin_lock(&OCFS2_I(inode)->ip_lock);
+ OCFS2_I(inode)->ip_dyn_features |= OCFS2_HAS_XATTR_FL;
+ di->i_dyn_features = cpu_to_le16(OCFS2_I(inode)->ip_dyn_features);
+ spin_unlock(&OCFS2_I(inode)->ip_lock);
+
+ ocfs2_journal_dirty(ctxt->handle, inode_bh);
*ret_bh = new_bh;
new_bh = NULL;
@@ -2838,13 +2831,13 @@ static int ocfs2_xattr_block_set(struct inode *inode,
struct ocfs2_xattr_set_ctxt *ctxt)
{
struct buffer_head *new_bh = NULL;
- handle_t *handle = ctxt->handle;
struct ocfs2_xattr_block *xblk = NULL;
int ret;
+ struct ocfs2_xa_loc loc;
if (!xs->xattr_bh) {
- ret = ocfs2_create_xattr_block(handle, inode, xs->inode_bh,
- ctxt->meta_ac, &new_bh, 0);
+ ret = ocfs2_create_xattr_block(inode, xs->inode_bh, ctxt,
+ 0, &new_bh);
if (ret) {
mlog_errno(ret);
goto end;
@@ -2860,21 +2853,25 @@ static int ocfs2_xattr_block_set(struct inode *inode,
xblk = (struct ocfs2_xattr_block *)xs->xattr_bh->b_data;
if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) {
- /* Set extended attribute into external block */
- ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
- OCFS2_HAS_XATTR_FL);
- if (!ret || ret != -ENOSPC)
- goto end;
+ ocfs2_init_xattr_block_xa_loc(&loc, inode, xs->xattr_bh,
+ xs->not_found ? NULL : xs->here);
- ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
- if (ret)
+ ret = ocfs2_xa_set(&loc, xi, ctxt);
+ if (!ret)
+ xs->here = loc.xl_entry;
+ else if (ret != -ENOSPC)
goto end;
+ else {
+ ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
+ if (ret)
+ goto end;
+ }
}
- ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
+ if (le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)
+ ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
end:
-
return ret;
}
@@ -6434,9 +6431,11 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
int indexed)
{
int ret;
- handle_t *handle;
struct ocfs2_alloc_context *meta_ac;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = {
+ .meta_ac = meta_ac,
+ };
ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
if (ret < 0) {
@@ -6444,21 +6443,21 @@ static int ocfs2_create_empty_xattr_block(struct inode *inode,
return ret;
}
- handle = ocfs2_start_trans(osb, OCFS2_XATTR_BLOCK_CREATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
+ ctxt.handle = ocfs2_start_trans(osb, OCFS2_XATTR_BLOCK_CREATE_CREDITS);
+ if (IS_ERR(ctxt.handle)) {
+ ret = PTR_ERR(ctxt.handle);
mlog_errno(ret);
goto out;
}
mlog(0, "create new xattr block for inode %llu, index = %d\n",
(unsigned long long)fe_bh->b_blocknr, indexed);
- ret = ocfs2_create_xattr_block(handle, inode, fe_bh,
- meta_ac, ret_bh, indexed);
+ ret = ocfs2_create_xattr_block(inode, fe_bh, &ctxt, indexed,
+ ret_bh);
if (ret)
mlog_errno(ret);
- ocfs2_commit_trans(osb, handle);
+ ocfs2_commit_trans(osb, ctxt.handle);
out:
ocfs2_free_alloc_context(meta_ac);
return ret;