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ocfs2: clean up bh null checks

Forráskód böngészése 
If we know a buffer_head is non-null, then brelse() is unnecessary and
put_bh() can be used instead. Also, an explicit check for NULL is
unnecessary when using brelse(). This patch only covers buffer_head_io.c and
resize.c, which have recently added code which exhibits this problem.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh
2008-01-23 18:35:31 -08:00
szülő 7ec373cf33
commit 2fe5c1d7eb
2 fájl változott, egészen pontosan 8 új sor hozzáadva és 15 régi sor törölve
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17
fs/ocfs2/resize.c
Fájl megtekintése

@@ -257,8 +257,7 @@ static void ocfs2_update_super_and_backups(struct inode *inode,
ret = update_backups(inode, clusters, super_bh->b_data);
out:
if (super_bh)
brelse(super_bh);
brelse(super_bh);
if (ret)
printk(KERN_WARNING "ocfs2: Failed to update super blocks on %s"
" during fs resize. This condition is not fatal,"
@@ -380,11 +379,8 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters)
out_commit:
ocfs2_commit_trans(osb, handle);
out_unlock:
if (group_bh)
brelse(group_bh);
if (main_bm_bh)
brelse(main_bm_bh);
brelse(group_bh);
brelse(main_bm_bh);
ocfs2_inode_unlock(main_bm_inode, 1);
@@ -623,11 +619,8 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
out_commit:
ocfs2_commit_trans(osb, handle);
out_unlock:
if (group_bh)
brelse(group_bh);
if (main_bm_bh)
brelse(main_bm_bh);
brelse(group_bh);
brelse(main_bm_bh);
ocfs2_inode_unlock(main_bm_inode, 1);