Commit abf09233 authored by Darrick J. Wong's avatar Darrick J. Wong Committed by Dave Chinner

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: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarDave Chinner <david@fromorbit.com>
parent fb7d9267
...@@ -92,13 +92,58 @@ xfs_rmap_update( ...@@ -92,13 +92,58 @@ xfs_rmap_update(
struct xfs_rmap_irec *irec) struct xfs_rmap_irec *irec)
{ {
union xfs_btree_rec rec; 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_startblock = cpu_to_be32(irec->rm_startblock);
rec.rmap.rm_blockcount = cpu_to_be32(irec->rm_blockcount); rec.rmap.rm_blockcount = cpu_to_be32(irec->rm_blockcount);
rec.rmap.rm_owner = cpu_to_be64(irec->rm_owner); rec.rmap.rm_owner = cpu_to_be64(irec->rm_owner);
rec.rmap.rm_offset = cpu_to_be64( rec.rmap.rm_offset = cpu_to_be64(
xfs_rmap_irec_offset_pack(irec)); 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 static int
......
...@@ -148,6 +148,9 @@ int xfs_rmap_lookup_le(struct xfs_btree_cur *cur, xfs_agblock_t bno, ...@@ -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, int xfs_rmap_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno,
xfs_extlen_t len, uint64_t owner, uint64_t offset, xfs_extlen_t len, uint64_t owner, uint64_t offset,
unsigned int flags, int *stat); 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 xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
int *stat); int *stat);
......
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