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xfs: remove XFS_BMAP_TRACE_EXLIST

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Instead of looping over all extents in some debug-only helper just
insert trace points into the loops that already exist in the calling
functions.

Also split the xfs_extlist trace point into one each for reading and
writing extents from disk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-10-19 11:06:29 -07:00 committed by Darrick J. Wong
parent ca5d8e5b7b
commit e8e0e170e2
4 changed files with 10 additions and 33 deletions
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23
fs/xfs/libxfs/xfs_bmap.c
View File

@ -487,26 +487,6 @@ xfs_bmap_check_leaf_extents(
return;
}
/*
* Add bmap trace insert entries for all the contents of the extent records.
*/
void
xfs_bmap_trace_exlist(
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t cnt, /* count of entries in the list */
int whichfork, /* data or attr or cow fork */
unsigned long caller_ip)
{
xfs_extnum_t idx; /* extent record index */
xfs_ifork_t *ifp; /* inode fork pointer */
int state = xfs_bmap_fork_to_state(whichfork);
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(cnt == xfs_iext_count(ifp));
for (idx = 0; idx < cnt; idx++)
trace_xfs_extlist(ip, idx, state, caller_ip);
}
/*
* Validate that the bmbt_irecs being returned from bmapi are valid
* given the caller's original parameters. Specifically check the
@ -1210,6 +1190,7 @@ xfs_bmap_read_extents(
__be64 *pp; /* pointer to block address */
/* REFERENCED */
xfs_extnum_t room; /* number of entries there's room for */
int state = xfs_bmap_fork_to_state(whichfork);
mp = ip->i_mount;
ifp = XFS_IFORK_PTR(ip, whichfork);
@ -1283,6 +1264,7 @@ xfs_bmap_read_extents(
XFS_ERRLEVEL_LOW, mp);
goto error0;
}
trace_xfs_read_extent(ip, i, state, _THIS_IP_);
}
xfs_trans_brelse(tp, bp);
bno = nextbno;
@ -1300,7 +1282,6 @@ xfs_bmap_read_extents(
if (i != XFS_IFORK_NEXTENTS(ip, whichfork))
return -EFSCORRUPTED;
ASSERT(i == xfs_iext_count(ifp));
XFS_BMAP_TRACE_EXLIST(ip, i, whichfork);
return 0;
error0:
xfs_trans_brelse(tp, bp);

9
fs/xfs/libxfs/xfs_bmap.h
View File

@ -197,15 +197,6 @@ enum shift_direction {
SHIFT_RIGHT,
};
#ifdef DEBUG
void xfs_bmap_trace_exlist(struct xfs_inode *ip, xfs_extnum_t cnt,
int whichfork, unsigned long caller_ip);
#define XFS_BMAP_TRACE_EXLIST(ip,c,w) \
xfs_bmap_trace_exlist(ip,c,w, _THIS_IP_)
#else
#define XFS_BMAP_TRACE_EXLIST(ip,c,w)
#endif
void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno,
xfs_filblks_t len);
void xfs_trim_extent_eof(struct xfs_bmbt_irec *, struct xfs_inode *);

8
fs/xfs/libxfs/xfs_inode_fork.c
View File

@ -336,6 +336,7 @@ xfs_iformat_extents(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
int state = xfs_bmap_fork_to_state(whichfork);
int nex = XFS_DFORK_NEXTENTS(dip, whichfork);
int size = nex * sizeof(xfs_bmbt_rec_t);
struct xfs_bmbt_rec *dp;
@ -373,8 +374,8 @@ xfs_iformat_extents(
XFS_ERRLEVEL_LOW, mp);
return -EFSCORRUPTED;
}
trace_xfs_read_extent(ip, i, state, _THIS_IP_);
}
XFS_BMAP_TRACE_EXLIST(ip, nex, whichfork);
}
ifp->if_flags |= XFS_IFEXTENTS;
return 0;
@ -772,6 +773,7 @@ xfs_iextents_copy(
xfs_bmbt_rec_t *dp,
int whichfork)
{
int state = xfs_bmap_fork_to_state(whichfork);
int copied;
int i;
xfs_ifork_t *ifp;
@ -783,7 +785,6 @@ xfs_iextents_copy(
ASSERT(ifp->if_bytes > 0);
nrecs = xfs_iext_count(ifp);
XFS_BMAP_TRACE_EXLIST(ip, nrecs, whichfork);
ASSERT(nrecs > 0);
/*
@ -806,9 +807,12 @@ xfs_iextents_copy(
continue;
}
trace_xfs_write_extent(ip, i, state, _RET_IP_);
/* Translate to on disk format */
put_unaligned_be64(ep->l0, &dp->l0);
put_unaligned_be64(ep->l1, &dp->l1);
dp++;
copied++;
}

3
fs/xfs/xfs_trace.h
View File

@ -309,7 +309,8 @@ DEFINE_EVENT(xfs_bmap_class, name, \
DEFINE_BMAP_EVENT(xfs_iext_remove);
DEFINE_BMAP_EVENT(xfs_bmap_pre_update);
DEFINE_BMAP_EVENT(xfs_bmap_post_update);
DEFINE_BMAP_EVENT(xfs_extlist);
DEFINE_BMAP_EVENT(xfs_read_extent);
DEFINE_BMAP_EVENT(xfs_write_extent);
DECLARE_EVENT_CLASS(xfs_buf_class,
TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip),