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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 11:26:33 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 11:26:33 +1000 |
| commit | ba9e780246a15a35f8ebe5b60f4a11bb58e85bda (patch) | |
| tree | 8216f1d66b69c2a34643d5604d79dc58278e2943 /fs | |
| parent | dc42375d5f55d2c48d363957621d7aa913bdc5a1 (diff) | |
| download | linux-stable-ba9e780246a15a35f8ebe5b60f4a11bb58e85bda.tar.gz linux-stable-ba9e780246a15a35f8ebe5b60f4a11bb58e85bda.tar.bz2 linux-stable-ba9e780246a15a35f8ebe5b60f4a11bb58e85bda.zip | |
xfs: add tracepoints and error injection for deferred extent freeing
Add a couple of tracepoints for the deferred extent free operation and
a site for injecting errors while finishing the operation. This makes
it easier to debug deferred ops and test log redo.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc.c | 7 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_error.h | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_trace.h | 5 |
4 files changed, 16 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 5993f87eee3e..22ac3f136f21 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2702,6 +2702,13 @@ xfs_free_extent( ASSERT(len != 0); + trace_xfs_bmap_free_deferred(mp, agno, 0, agbno, len); + + if (XFS_TEST_ERROR(false, mp, + XFS_ERRTAG_FREE_EXTENT, + XFS_RANDOM_FREE_EXTENT)) + return -EIO; + error = xfs_free_extent_fix_freelist(tp, agno, &agbp); if (error) return error; diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 540a6b7928af..8e14ff45c73a 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -596,6 +596,8 @@ xfs_bmap_add_free( new = kmem_zone_alloc(xfs_bmap_free_item_zone, KM_SLEEP); new->xefi_startblock = bno; new->xefi_blockcount = (xfs_extlen_t)len; + trace_xfs_bmap_free_defer(mp, XFS_FSB_TO_AGNO(mp, bno), 0, + XFS_FSB_TO_AGBNO(mp, bno), len); xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_FREE, &new->xefi_list); } diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h index 2e4f67f68856..da6f951435c9 100644 --- a/fs/xfs/xfs_error.h +++ b/fs/xfs/xfs_error.h @@ -90,7 +90,8 @@ extern void xfs_verifier_error(struct xfs_buf *bp); #define XFS_ERRTAG_STRATCMPL_IOERR 19 #define XFS_ERRTAG_DIOWRITE_IOERR 20 #define XFS_ERRTAG_BMAPIFORMAT 21 -#define XFS_ERRTAG_MAX 22 +#define XFS_ERRTAG_FREE_EXTENT 22 +#define XFS_ERRTAG_MAX 23 /* * Random factors for above tags, 1 means always, 2 means 1/2 time, etc. @@ -117,6 +118,7 @@ extern void xfs_verifier_error(struct xfs_buf *bp); #define XFS_RANDOM_STRATCMPL_IOERR (XFS_RANDOM_DEFAULT/10) #define XFS_RANDOM_DIOWRITE_IOERR (XFS_RANDOM_DEFAULT/10) #define XFS_RANDOM_BMAPIFORMAT XFS_RANDOM_DEFAULT +#define XFS_RANDOM_FREE_EXTENT 1 #ifdef DEBUG extern int xfs_error_test_active; diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index a45b030d4592..939caf5f5a45 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -2417,9 +2417,12 @@ DEFINE_DEFER_PENDING_EVENT(xfs_defer_pending_cancel); DEFINE_DEFER_PENDING_EVENT(xfs_defer_pending_finish); DEFINE_DEFER_PENDING_EVENT(xfs_defer_pending_abort); -DEFINE_PHYS_EXTENT_DEFERRED_EVENT(xfs_defer_phys_extent); DEFINE_MAP_EXTENT_DEFERRED_EVENT(xfs_defer_map_extent); +#define DEFINE_BMAP_FREE_DEFERRED_EVENT DEFINE_PHYS_EXTENT_DEFERRED_EVENT +DEFINE_BMAP_FREE_DEFERRED_EVENT(xfs_bmap_free_defer); +DEFINE_BMAP_FREE_DEFERRED_EVENT(xfs_bmap_free_deferred); + #endif /* _TRACE_XFS_H */ #undef TRACE_INCLUDE_PATH |