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>
---
fs/xfs/libxfs/xfs_rmap.c | 63 ++++++++++++++++++++++++++++++----------------
fs/xfs/libxfs/xfs_rmap.h | 9 ++++---
fs/xfs/xfs_rmap_item.c | 8 +++++-
fs/xfs/xfs_trans.h | 9 ++++---
fs/xfs/xfs_trans_rmap.c | 7 +++--
5 files changed, 62 insertions(+), 34 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index 73e8dc4..f3e47d6 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -38,6 +38,7 @@
#include "xfs_extent_busy.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
@@ -2062,13 +2063,14 @@ 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);
}
@@ -2082,6 +2084,7 @@ 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,
@@ -2089,6 +2092,7 @@ 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;
@@ -2100,9 +2104,8 @@ 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);
@@ -2122,31 +2125,45 @@ 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;
@@ -2155,6 +2172,8 @@ 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/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h
index 0850310..8d9c48f2 100644
--- a/fs/xfs/libxfs/xfs_rmap.h
+++ b/fs/xfs/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,
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index 01d6edf..a57aebb 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -446,6 +446,8 @@ xfs_rui_recover(
struct xfs_trans *tp;
struct xfs_btree_cur *rcur = NULL;
bool rt;
+ struct xfs_defer_ops dfops;
+ xfs_fsblock_t firstfsb;
ASSERT(!test_bit(XFS_RUI_RECOVERED, &ruip->rui_flags));
@@ -493,6 +495,7 @@ xfs_rui_recover(
return error;
rudp = xfs_trans_get_rud(tp, ruip);
+ xfs_defer_init(&dfops, &firstfsb);
for (i = 0; i < ruip->rui_format.rui_nextents; i++) {
rmap = &ruip->rui_format.rui_extents[i];
state = (rmap->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ?
@@ -529,7 +532,7 @@ xfs_rui_recover(
error = -EFSCORRUPTED;
goto abort_error;
}
- error = xfs_trans_log_finish_rmap_update(tp, rudp, type,
+ error = xfs_trans_log_finish_rmap_update(tp, &dfops, rudp, type,
rmap->me_owner, whichfork,
rmap->me_startoff, rmap->me_startblock,
rmap->me_len, state, rt, &rcur);
@@ -539,6 +542,9 @@ xfs_rui_recover(
}
xfs_rmap_finish_one_cleanup(tp, rcur, error);
+ error = xfs_defer_finish(&tp, &dfops, NULL);
+ if (error)
+ goto abort_error;
set_bit(XFS_RUI_RECOVERED, &ruip->rui_flags);
error = xfs_trans_commit(tp);
return error;
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index fbd7bc8..17ac0e8 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -248,10 +248,11 @@ void xfs_rmap_update_init_defer_op(void);
struct xfs_rud_log_item *xfs_trans_get_rud(struct xfs_trans *tp,
struct xfs_rui_log_item *ruip);
int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
- struct xfs_rud_log_item *rudp, 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 rt, struct xfs_btree_cur **pcur);
+ struct xfs_defer_ops *dfops, struct xfs_rud_log_item *rudp,
+ 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 rt,
+ struct xfs_btree_cur **pcur);
/* refcount updates */
enum xfs_refcount_intent_type;
diff --git a/fs/xfs/xfs_trans_rmap.c b/fs/xfs/xfs_trans_rmap.c
index 9240157b..e80002e 100644
--- a/fs/xfs/xfs_trans_rmap.c
+++ b/fs/xfs/xfs_trans_rmap.c
@@ -97,6 +97,7 @@ xfs_trans_get_rud(
int
xfs_trans_log_finish_rmap_update(
struct xfs_trans *tp,
+ struct xfs_defer_ops *dfops,
struct xfs_rud_log_item *rudp,
enum xfs_rmap_intent_type type,
__uint64_t owner,
@@ -110,8 +111,8 @@ xfs_trans_log_finish_rmap_update(
{
int error;
- error = xfs_rmap_finish_one(tp, type, owner, whichfork, startoff,
- startblock, blockcount, state, pcur);
+ error = xfs_rmap_finish_one(tp, dfops, type, owner, whichfork, startoff,
+ startblock, blockcount, state, rt, pcur);
/*
* Mark the transaction dirty, even on error. This ensures the
@@ -220,7 +221,7 @@ xfs_rmap_update_finish_item(
int error;
rmap = container_of(item, struct xfs_rmap_intent, ri_list);
- error = xfs_trans_log_finish_rmap_update(tp, done_item,
+ error = xfs_trans_log_finish_rmap_update(tp, dop, done_item,
rmap->ri_type,
rmap->ri_owner, rmap->ri_whichfork,
rmap->ri_bmap.br_startoff,
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