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@xxxxxxxxxx> --- include/xfs_trace.h | 3 +++ libxfs/xfs_alloc.c | 7 +++++++ libxfs/xfs_bmap.c | 2 ++ 3 files changed, 12 insertions(+) diff --git a/include/xfs_trace.h b/include/xfs_trace.h index dd0d46f..cdabd18 100644 --- a/include/xfs_trace.h +++ b/include/xfs_trace.h @@ -184,6 +184,9 @@ #define trace_xfs_defer_pending_cancel(...) ((void) 0) #define trace_xfs_defer_init(...) ((void) 0) +#define trace_xfs_bmap_free_deferred(...) ((void) 0) +#define trace_xfs_bmap_free_defer(...) ((void) 0) + /* set c = c to avoid unused var warnings */ #define trace_xfs_perag_get(a,b,c,d) ((c) = (c)) #define trace_xfs_perag_get_tag(a,b,c,d) ((c) = (c)) diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c index 8454816..06133c0 100644 --- a/libxfs/xfs_alloc.c +++ b/libxfs/xfs_alloc.c @@ -2700,6 +2700,13 @@ 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/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c index 5385800..33e181c 100644 --- a/libxfs/xfs_bmap.c +++ b/libxfs/xfs_bmap.c @@ -588,6 +588,8 @@ xfs_bmap_add_free( new = kmem_zone_alloc(xfs_bmap_free_item_zone, KM_SLEEP); new->xbfi_startblock = bno; new->xbfi_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->xbfi_list); } _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
