Connect the map and unmap reverse-mapping operations to the realtime
rmapbt via the deferred operation callbacks. This enables us to
perform rmap operations against the correct btree.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
libxfs/defer_item.c | 3 ++
libxfs/xfs_rmap.c | 63 +++++++++++++++++++++++++++++++++------------------
libxfs/xfs_rmap.h | 9 ++++---
3 files changed, 48 insertions(+), 27 deletions(-)
diff --git a/libxfs/defer_item.c b/libxfs/defer_item.c
index d4cd876..58b646f 100644
--- a/libxfs/defer_item.c
+++ b/libxfs/defer_item.c
@@ -200,13 +200,14 @@ xfs_rmap_update_finish_item(
int error;
rmap = container_of(item, struct xfs_rmap_intent, ri_list);
- error = xfs_rmap_finish_one(tp,
+ error = xfs_rmap_finish_one(tp, dop,
rmap->ri_type,
rmap->ri_owner, rmap->ri_whichfork,
rmap->ri_bmap.br_startoff,
rmap->ri_bmap.br_startblock,
rmap->ri_bmap.br_blockcount,
rmap->ri_bmap.br_state,
+ rmap->ri_realtime,
(struct xfs_btree_cur **)state);
kmem_free(rmap);
return error;
diff --git a/libxfs/xfs_rmap.c b/libxfs/xfs_rmap.c
index 4ed2f2e..55744b7 100644
--- a/libxfs/xfs_rmap.c
+++ b/libxfs/xfs_rmap.c
@@ -36,6 +36,7 @@
#include "xfs_trace.h"
#include "xfs_bmap.h"
#include "xfs_inode.h"
+#include "xfs_rtrmap_btree.h"
/* By convention, the rtrmapbt's "AG" number is NULLAGNUMBER. */
static xfs_agnumber_t
@@ -2060,13 +2061,14 @@ xfs_rmap_finish_one_cleanup(
struct xfs_btree_cur *rcur,
int error)
{
- struct xfs_buf *agbp;
+ struct xfs_buf *agbp = NULL;
if (rcur == NULL)
return;
- agbp = rcur->bc_private.a.agbp;
+ if (!(rcur->bc_flags & XFS_BTREE_LONG_PTRS))
+ agbp = rcur->bc_private.a.agbp;
xfs_btree_del_cursor(rcur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
- if (error)
+ if (error && agbp)
xfs_trans_brelse(tp, agbp);
}
@@ -2080,6 +2082,7 @@ xfs_rmap_finish_one_cleanup(
int
xfs_rmap_finish_one(
struct xfs_trans *tp,
+ struct xfs_defer_ops *dfops,
enum xfs_rmap_intent_type type,
__uint64_t owner,
int whichfork,
@@ -2087,6 +2090,7 @@ xfs_rmap_finish_one(
xfs_fsblock_t startblock,
xfs_filblks_t blockcount,
xfs_exntst_t state,
+ bool realtime,
struct xfs_btree_cur **pcur)
{
struct xfs_mount *mp = tp->t_mountp;
@@ -2098,9 +2102,8 @@ xfs_rmap_finish_one(
xfs_fsblock_t bno;
bool unwritten;
- agno = XFS_FSB_TO_AGNO(mp, startblock);
- ASSERT(agno != NULLAGNUMBER);
- bno = XFS_FSB_TO_AGBNO(mp, startblock);
+ agno = realtime ? NULLAGNUMBER : XFS_FSB_TO_AGNO(mp, startblock);
+ bno = realtime ? startblock : XFS_FSB_TO_AGBNO(mp, startblock);
trace_xfs_rmap_deferred(mp, agno, type, bno, owner, whichfork,
startoff, blockcount, state);
@@ -2120,31 +2123,45 @@ xfs_rmap_finish_one(
*pcur = NULL;
}
if (rcur == NULL) {
- /*
- * Refresh the freelist before we start changing the
- * rmapbt, because a shape change could cause us to
- * allocate blocks.
- */
- error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
- if (error)
- return error;
- if (!agbp)
- return -EFSCORRUPTED;
-
- rcur = xfs_rmapbt_init_cursor(mp, tp, agbp, agno);
- if (!rcur) {
- error = -ENOMEM;
- goto out_cur;
+ if (realtime) {
+ xfs_ilock(mp->m_rrmapip,
+ XFS_ILOCK_EXCL|XFS_ILOCK_RTBITMAP);
+ xfs_trans_ijoin(tp, mp->m_rrmapip, XFS_ILOCK_EXCL);
+ rcur = xfs_rtrmapbt_init_cursor(mp, tp, mp->m_rrmapip);
+ if (!rcur) {
+ error = -ENOMEM;
+ goto out_cur;
+ }
+ rcur->bc_private.b.dfops = dfops;
+ rcur->bc_private.b.flags = 0;
+ } else {
+ /*
+ * Refresh the freelist before we start changing the
+ * rmapbt, because a shape change could cause us to
+ * allocate blocks.
+ */
+ error = xfs_free_extent_fix_freelist(tp, agno, &agbp);
+ if (error)
+ return error;
+ if (!agbp)
+ return -EFSCORRUPTED;
+
+ rcur = xfs_rmapbt_init_cursor(mp, tp, agbp, agno);
+ if (!rcur) {
+ error = -ENOMEM;
+ goto out_cur;
+ }
}
}
*pcur = rcur;
xfs_rmap_ino_owner(&oinfo, owner, whichfork, startoff);
unwritten = state == XFS_EXT_UNWRITTEN;
- bno = XFS_FSB_TO_AGBNO(rcur->bc_mp, startblock);
switch (type) {
case XFS_RMAP_ALLOC:
+ ASSERT(!realtime);
+ /* fall through */
case XFS_RMAP_MAP:
error = xfs_rmap_map(rcur, bno, blockcount, unwritten, &oinfo);
break;
@@ -2153,6 +2170,8 @@ xfs_rmap_finish_one(
&oinfo);
break;
case XFS_RMAP_FREE:
+ ASSERT(!realtime);
+ /* fall through */
case XFS_RMAP_UNMAP:
error = xfs_rmap_unmap(rcur, bno, blockcount, unwritten,
&oinfo);
diff --git a/libxfs/xfs_rmap.h b/libxfs/xfs_rmap.h
index 0850310..8d9c48f 100644
--- a/libxfs/xfs_rmap.h
+++ b/libxfs/xfs_rmap.h
@@ -202,10 +202,11 @@ int xfs_rmap_free_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
void xfs_rmap_finish_one_cleanup(struct xfs_trans *tp,
struct xfs_btree_cur *rcur, int error);
-int xfs_rmap_finish_one(struct xfs_trans *tp, enum xfs_rmap_intent_type type,
- __uint64_t owner, int whichfork, xfs_fileoff_t startoff,
- xfs_fsblock_t startblock, xfs_filblks_t blockcount,
- xfs_exntst_t state, struct xfs_btree_cur **pcur);
+int xfs_rmap_finish_one(struct xfs_trans *tp, struct xfs_defer_ops *dfops,
+ enum xfs_rmap_intent_type type, __uint64_t owner, int whichfork,
+ xfs_fileoff_t startoff, xfs_fsblock_t startblock,
+ xfs_filblks_t blockcount, xfs_exntst_t state, bool realtime,
+ struct xfs_btree_cur **pcur);
int xfs_rmap_find_left_neighbor(struct xfs_btree_cur *cur, xfs_fsblock_t bno,
uint64_t owner, uint64_t offset, unsigned int flags,
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