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| author | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-24 03:35:31 +0100 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2008-01-26 00:05:48 +0100 |
| commit | 2fe5c1d7eb88830b09c863a4b5b3279dc120f3af (patch) | |
| tree | c04e3249e3ae14f935ae1d090cd88833c96e6e3b /fs | |
| parent | ocfs2: document access rules for blocked_lock_list (diff) | |
| download | linux-2fe5c1d7eb88830b09c863a4b5b3279dc120f3af.tar.xz linux-2fe5c1d7eb88830b09c863a4b5b3279dc120f3af.zip | |
ocfs2: clean up bh null checks
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ocfs2/buffer_head_io.c | 6 | ||||
| -rw-r--r-- | fs/ocfs2/resize.c | 17 |
2 files changed, 8 insertions, 15 deletions
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index 31aa61dc777b..f136639f5b41 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -79,7 +79,7 @@ int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh, * information for this bh as it's not marked locally * uptodate. */ ret = -EIO; - brelse(bh); + put_bh(bh); } mutex_unlock(&OCFS2_I(inode)->ip_io_mutex); @@ -256,7 +256,7 @@ int ocfs2_read_blocks(struct ocfs2_super *osb, u64 block, int nr, * for this bh as it's not marked locally * uptodate. */ status = -EIO; - brelse(bh); + put_bh(bh); bhs[i] = NULL; continue; } @@ -334,7 +334,7 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb, if (!buffer_uptodate(bh)) { ret = -EIO; - brelse(bh); + put_bh(bh); } out: diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c index 7791309bb258..37835ffcb039 100644 --- a/fs/ocfs2/resize.c +++ b/fs/ocfs2/resize.c @@ -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); |