diff options
author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 05:03:58 +0300 |
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committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 05:03:58 +0300 |
commit | abf09233817b5ea1241db0c187136d3b4738d218 (patch) | |
tree | add4550028cc917c301fe3239789edcc472cd73b /fs | |
parent | fb7d9267692a5cdc01648bf4c8fdca51054bc0f2 (diff) | |
download | linux-abf09233817b5ea1241db0c187136d3b4738d218.tar.xz |
xfs: add rmap btree insert and delete helpers
Add a couple of helper functions to encapsulate rmap btree insert and
delete operations. Add tracepoints to the update function.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/xfs/libxfs/xfs_rmap.c | 47 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_rmap.h | 3 |
2 files changed, 49 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c index 743927238bdc..e8ce97fd0608 100644 --- a/fs/xfs/libxfs/xfs_rmap.c +++ b/fs/xfs/libxfs/xfs_rmap.c @@ -92,13 +92,58 @@ xfs_rmap_update( struct xfs_rmap_irec *irec) { union xfs_btree_rec rec; + int error; + + trace_xfs_rmap_update(cur->bc_mp, cur->bc_private.a.agno, + irec->rm_startblock, irec->rm_blockcount, + irec->rm_owner, irec->rm_offset, irec->rm_flags); rec.rmap.rm_startblock = cpu_to_be32(irec->rm_startblock); rec.rmap.rm_blockcount = cpu_to_be32(irec->rm_blockcount); rec.rmap.rm_owner = cpu_to_be64(irec->rm_owner); rec.rmap.rm_offset = cpu_to_be64( xfs_rmap_irec_offset_pack(irec)); - return xfs_btree_update(cur, &rec); + error = xfs_btree_update(cur, &rec); + if (error) + trace_xfs_rmap_update_error(cur->bc_mp, + cur->bc_private.a.agno, error, _RET_IP_); + return error; +} + +int +xfs_rmap_insert( + struct xfs_btree_cur *rcur, + xfs_agblock_t agbno, + xfs_extlen_t len, + uint64_t owner, + uint64_t offset, + unsigned int flags) +{ + int i; + int error; + + trace_xfs_rmap_insert(rcur->bc_mp, rcur->bc_private.a.agno, agbno, + len, owner, offset, flags); + + error = xfs_rmap_lookup_eq(rcur, agbno, len, owner, offset, flags, &i); + if (error) + goto done; + XFS_WANT_CORRUPTED_GOTO(rcur->bc_mp, i == 0, done); + + rcur->bc_rec.r.rm_startblock = agbno; + rcur->bc_rec.r.rm_blockcount = len; + rcur->bc_rec.r.rm_owner = owner; + rcur->bc_rec.r.rm_offset = offset; + rcur->bc_rec.r.rm_flags = flags; + error = xfs_btree_insert(rcur, &i); + if (error) + goto done; + XFS_WANT_CORRUPTED_GOTO(rcur->bc_mp, i == 1, done); +done: + if (error) + trace_xfs_rmap_insert_error(rcur->bc_mp, + rcur->bc_private.a.agno, error, _RET_IP_); + return error; } static int diff --git a/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h index 34c811a2dacc..92ac067da7dd 100644 --- a/fs/xfs/libxfs/xfs_rmap.h +++ b/fs/xfs/libxfs/xfs_rmap.h @@ -148,6 +148,9 @@ int xfs_rmap_lookup_le(struct xfs_btree_cur *cur, xfs_agblock_t bno, int xfs_rmap_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner, uint64_t offset, unsigned int flags, int *stat); +int xfs_rmap_insert(struct xfs_btree_cur *rcur, xfs_agblock_t agbno, + xfs_extlen_t len, uint64_t owner, uint64_t offset, + unsigned int flags); int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec, int *stat); |