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ocfs2: Fix ocfs2_read_quota_block() error handling.

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ocfs2_bread() has become ocfs2_read_virt_blocks(), with a prototype to
match ocfs2_read_blocks().  The quota code, converting from
ocfs2_bread(), wraps the call to ocfs2_read_virt_blocks() in
ocfs2_read_quota_block().  Unfortunately, the prototype of
ocfs2_read_quota_block() matches the old prototype of ocfs2_bread().

The problem is that ocfs2_bread() returned the buffer head, and callers
assumed that a NULL pointer was indicative of error.  It wasn't.  This
is why ocfs2_bread() took an int*err argument as well.

The new prototype of ocfs2_read_virt_blocks() avoids this error handling
confusion.  Let's change ocfs2_read_quota_block() to match.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Joel Becker
2008-11-25 15:31:27 +01:00
committed by Mark Fasheh
parent 57a09a7b3d
commit 85eb8b73d6
4 changed files with 60 additions and 48 deletions
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6
fs/ocfs2/dlmglue.c
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@ -3519,7 +3519,7 @@ static int ocfs2_refresh_qinfo(struct ocfs2_mem_dqinfo *oinfo)
oinfo->dqi_gi.dqi_type);
struct ocfs2_lock_res *lockres = &oinfo->dqi_gqlock;
struct ocfs2_qinfo_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
struct buffer_head *bh;
struct buffer_head *bh = NULL;
struct ocfs2_global_disk_dqinfo *gdinfo;
int status = 0;
@ -3532,8 +3532,8 @@ static int ocfs2_refresh_qinfo(struct ocfs2_mem_dqinfo *oinfo)
oinfo->dqi_gi.dqi_free_entry =
be32_to_cpu(lvb->lvb_free_entry);
} else {
bh = ocfs2_read_quota_block(oinfo->dqi_gqinode, 0, &status);
if (!bh) {
status = ocfs2_read_quota_block(oinfo->dqi_gqinode, 0, &bh);
if (status) {
mlog_errno(status);
goto bail;
}