From: Dave Chinner <dchinner@xxxxxxxxxx>
Most of the callers are just calling ASSERT(!xfs_buf_geterror())
which means they are checking for bp->b_error == 0. If bp is null in
this case, we will assert fail, and hence it's no different in
result to oopsing because of a null bp. In some cases, errors have
already been checked for or the function returning the buffer can't
return a buffer with an error, so it's just a redundant assert.
Either way, the assert can either be removed.
The other two non-assert callers can just test for a buffer and
error properly.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/xfs_alloc.c | 1 -
fs/xfs/xfs_btree.c | 12 ++----------
fs/xfs/xfs_buf.h | 5 -----
fs/xfs/xfs_buf_item.c | 2 +-
fs/xfs/xfs_dquot.c | 6 +++---
fs/xfs/xfs_ialloc.c | 1 -
fs/xfs/xfs_log.c | 2 +-
fs/xfs/xfs_rtbitmap.c | 1 -
8 files changed, 7 insertions(+), 23 deletions(-)
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index c1cf6a3..077c3417 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -541,7 +541,6 @@ xfs_alloc_read_agfl(
XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_agfl_buf_ops);
if (error)
return error;
- ASSERT(!xfs_buf_geterror(bp));
xfs_buf_set_ref(bp, XFS_AGFL_REF);
*bpp = bp;
return 0;
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 182bac2..bf810c6 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -553,14 +553,11 @@ xfs_btree_get_bufl(
xfs_fsblock_t fsbno, /* file system block number */
uint lock) /* lock flags for get_buf */
{
- xfs_buf_t *bp; /* buffer pointer (return value) */
xfs_daddr_t d; /* real disk block address */
ASSERT(fsbno != NULLFSBLOCK);
d = XFS_FSB_TO_DADDR(mp, fsbno);
- bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
- ASSERT(!xfs_buf_geterror(bp));
- return bp;
+ return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
}
/*
@@ -575,15 +572,12 @@ xfs_btree_get_bufs(
xfs_agblock_t agbno, /* allocation group block number */
uint lock) /* lock flags for get_buf */
{
- xfs_buf_t *bp; /* buffer pointer (return value) */
xfs_daddr_t d; /* real disk block address */
ASSERT(agno != NULLAGNUMBER);
ASSERT(agbno != NULLAGBLOCK);
d = XFS_AGB_TO_DADDR(mp, agno, agbno);
- bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
- ASSERT(!xfs_buf_geterror(bp));
- return bp;
+ return xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, lock);
}
/*
@@ -723,7 +717,6 @@ xfs_btree_read_bufl(
mp->m_bsize, lock, &bp, ops);
if (error)
return error;
- ASSERT(!xfs_buf_geterror(bp));
if (bp)
xfs_buf_set_ref(bp, refval);
*bpp = bp;
@@ -1179,7 +1172,6 @@ xfs_btree_read_buf_block(
if (error)
return error;
- ASSERT(!xfs_buf_geterror(*bpp));
xfs_btree_set_refs(cur, *bpp);
*block = XFS_BUF_TO_BLOCK(*bpp);
return 0;
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 0e47fd1..3a7a552 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -298,11 +298,6 @@ extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *,
extern int xfs_bioerror_relse(struct xfs_buf *);
-static inline int xfs_buf_geterror(xfs_buf_t *bp)
-{
- return bp ? bp->b_error : ENOMEM;
-}
-
/* Buffer Utility Routines */
extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t);
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 64b17f5..4654338 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -1052,7 +1052,7 @@ xfs_buf_iodone_callbacks(
static ulong lasttime;
static xfs_buftarg_t *lasttarg;
- if (likely(!xfs_buf_geterror(bp)))
+ if (likely(!bp->b_error))
goto do_callbacks;
/*
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 5fec738..3ee0cd4 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -353,10 +353,10 @@ xfs_qm_dqalloc(
dqp->q_blkno,
mp->m_quotainfo->qi_dqchunklen,
0);
-
- error = xfs_buf_geterror(bp);
- if (error)
+ if (!bp) {
+ error = ENOMEM;
goto error1;
+ }
bp->b_ops = &xfs_dquot_buf_ops;
/*
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index e8dfaf0..5960e55 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -2129,7 +2129,6 @@ xfs_read_agi(
if (error)
return error;
- ASSERT(!xfs_buf_geterror(*bpp));
xfs_buf_set_ref(*bpp, XFS_AGI_REF);
return 0;
}
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 3554098..292308d 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1165,7 +1165,7 @@ xlog_iodone(xfs_buf_t *bp)
/*
* Race to shutdown the filesystem if we see an error.
*/
- if (XFS_TEST_ERROR((xfs_buf_geterror(bp)), l->l_mp,
+ if (XFS_TEST_ERROR(bp->b_error, l->l_mp,
XFS_ERRTAG_IODONE_IOERR, XFS_RANDOM_IODONE_IOERR)) {
xfs_buf_ioerror_alert(bp, __func__);
xfs_buf_stale(bp);
diff --git a/fs/xfs/xfs_rtbitmap.c b/fs/xfs/xfs_rtbitmap.c
index b1f2fe8..f4dd697 100644
--- a/fs/xfs/xfs_rtbitmap.c
+++ b/fs/xfs/xfs_rtbitmap.c
@@ -74,7 +74,6 @@ xfs_rtbuf_get(
mp->m_bsize, 0, &bp, NULL);
if (error)
return error;
- ASSERT(!xfs_buf_geterror(bp));
*bpp = bp;
return 0;
}
--
1.9.0
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