Cross-reference the inode btrees with the other metadata when we
scrub the filesystem.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_ialloc.c | 99 ++++++++++++++++++++++++++++++++++++++++++++
fs/xfs/libxfs/xfs_ialloc.h | 6 +++
fs/xfs/repair/agheader.c | 81 ++++++++++++++++++++++++++++++++++++
fs/xfs/repair/alloc.c | 18 ++++++++
fs/xfs/repair/bmap.c | 20 +++++++++
fs/xfs/repair/ialloc.c | 16 +++++++
fs/xfs/repair/refcount.c | 20 +++++++++
fs/xfs/repair/rmap.c | 24 +++++++++++
8 files changed, 284 insertions(+)
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 542f6a9..c725eb9 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -2668,3 +2668,102 @@ xfs_ialloc_pagi_init(
xfs_trans_brelse(tp, bp);
return 0;
}
+
+/* Is there an inode record covering a given range of inode numbers? */
+int
+xfs_ialloc_has_inode_record(
+ struct xfs_btree_cur *cur,
+ xfs_agino_t low,
+ xfs_agino_t high,
+ bool *exists)
+{
+ struct xfs_inobt_rec_incore irec;
+ xfs_agino_t agino;
+ __uint16_t holemask;
+ int has;
+ int i;
+ int error;
+
+ *exists = false;
+ error = xfs_inobt_lookup(cur, low, XFS_LOOKUP_LE, &has);
+ while (error == 0 && has) {
+ error = xfs_inobt_get_rec(cur, &irec, &has);
+ if (error || irec.ir_startino > high)
+ break;
+
+ agino = irec.ir_startino;
+ holemask = irec.ir_holemask;
+ for (i = 0; i < XFS_INOBT_HOLEMASK_BITS; holemask >>= 1,
+ i++, agino += XFS_INODES_PER_HOLEMASK_BIT) {
+ if (holemask & 1)
+ continue;
+ if (agino + XFS_INODES_PER_HOLEMASK_BIT > low &&
+ agino <= high) {
+ *exists = true;
+ goto out;
+ }
+ }
+
+ error = xfs_btree_increment(cur, 0, &has);
+ }
+out:
+ return error;
+}
+
+/* Is there an inode record covering a given extent? */
+int
+xfs_ialloc_has_inodes_at_extent(
+ struct xfs_btree_cur *cur,
+ xfs_agblock_t bno,
+ xfs_extlen_t len,
+ bool *exists)
+{
+ xfs_agino_t low;
+ xfs_agino_t high;
+
+ low = XFS_OFFBNO_TO_AGINO(cur->bc_mp, bno, 0);
+ high = XFS_OFFBNO_TO_AGINO(cur->bc_mp, bno + len, 0) - 1;
+
+ return xfs_ialloc_has_inode_record(cur, low, high, exists);
+}
+
+struct xfs_ialloc_count_inodes {
+ xfs_agino_t count;
+ xfs_agino_t freecount;
+};
+
+/* Record inode counts across all inobt records. */
+STATIC int
+xfs_ialloc_count_inodes_helper(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_rec *rec,
+ void *priv)
+{
+ struct xfs_inobt_rec_incore irec;
+ struct xfs_ialloc_count_inodes *ci = priv;
+
+ xfs_inobt_btrec_to_irec(cur->bc_mp, rec, &irec);
+ ci->count += irec.ir_count;
+ ci->freecount += irec.ir_freecount;
+
+ return 0;
+}
+
+/* Count allocated and free inodes under an inobt. */
+int
+xfs_ialloc_count_inodes(
+ struct xfs_btree_cur *cur,
+ xfs_agino_t *count,
+ xfs_agino_t *freecount)
+{
+ struct xfs_ialloc_count_inodes ci = {0};
+ int error;
+
+ ASSERT(cur->bc_btnum == XFS_BTNUM_INO);
+ error = xfs_btree_query_all(cur, xfs_ialloc_count_inodes_helper, &ci);
+ if (!error) {
+ *count = ci.count;
+ *freecount = ci.freecount;
+ }
+ return error;
+}
diff --git a/fs/xfs/libxfs/xfs_ialloc.h b/fs/xfs/libxfs/xfs_ialloc.h
index 8e5861d..17f0f1b 100644
--- a/fs/xfs/libxfs/xfs_ialloc.h
+++ b/fs/xfs/libxfs/xfs_ialloc.h
@@ -171,5 +171,11 @@ int xfs_read_agi(struct xfs_mount *mp, struct xfs_trans *tp,
union xfs_btree_rec;
void xfs_inobt_btrec_to_irec(struct xfs_mount *mp, union xfs_btree_rec *rec,
struct xfs_inobt_rec_incore *irec);
+int xfs_ialloc_has_inodes_at_extent(struct xfs_btree_cur *cur,
+ xfs_agblock_t bno, xfs_extlen_t len, bool *exists);
+int xfs_ialloc_has_inode_record(struct xfs_btree_cur *cur, xfs_agino_t low,
+ xfs_agino_t high, bool *exists);
+int xfs_ialloc_count_inodes(struct xfs_btree_cur *cur, xfs_agino_t *count,
+ xfs_agino_t *freecount);
#endif /* __XFS_IALLOC_H__ */
diff --git a/fs/xfs/repair/agheader.c b/fs/xfs/repair/agheader.c
index c1b4b13..62baeed 100644
--- a/fs/xfs/repair/agheader.c
+++ b/fs/xfs/repair/agheader.c
@@ -31,6 +31,7 @@
#include "xfs_trace.h"
#include "xfs_sb.h"
#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
#include "repair/common.h"
/* Find the size of the AG, in blocks. */
@@ -143,6 +144,7 @@ xfs_scrub_superblock(
xfs_agnumber_t agno;
uint32_t v2_ok;
bool is_freesp;
+ bool has_inodes;
int error;
int err2;
@@ -279,6 +281,22 @@ xfs_scrub_superblock(
XFS_SCRUB_SB_CHECK(!is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur,
+ XFS_SB_BLOCK(mp), 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &psa->ino_cur))
+ XFS_SCRUB_SB_CHECK(!has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur,
+ XFS_SB_BLOCK(mp), 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &psa->fino_cur))
+ XFS_SCRUB_SB_CHECK(!has_inodes);
+ }
+
out:
return error;
}
@@ -324,6 +342,7 @@ xfs_scrub_agf(
xfs_agblock_t fl_count;
xfs_extlen_t blocks;
bool is_freesp;
+ bool has_inodes;
int have;
int level;
int error = 0;
@@ -443,6 +462,22 @@ xfs_scrub_agf(
}
skip_cntbt:
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur,
+ XFS_AGF_BLOCK(mp), 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &psa->ino_cur))
+ XFS_SCRUB_AGF_CHECK(!has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur,
+ XFS_AGF_BLOCK(mp), 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &psa->fino_cur))
+ XFS_SCRUB_AGF_CHECK(!has_inodes);
+ }
+
out:
return error;
}
@@ -469,6 +504,7 @@ xfs_scrub_agfl_block(
xfs_agnumber_t agno = sc->sa.agno;
struct xfs_scrub_agfl *sagfl = priv;
bool is_freesp;
+ bool has_inodes;
int err2;
XFS_SCRUB_AGFL_CHECK(agbno > XFS_AGI_BLOCK(mp));
@@ -487,6 +523,22 @@ xfs_scrub_agfl_block(
XFS_SCRUB_AGFL_CHECK(!is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (sc->sa.ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(sc->sa.ino_cur,
+ agbno, 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &sc->sa.ino_cur))
+ XFS_SCRUB_AGFL_CHECK(!has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (sc->sa.fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(sc->sa.fino_cur,
+ agbno, 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &sc->sa.fino_cur))
+ XFS_SCRUB_AGFL_CHECK(!has_inodes);
+ }
+
return 0;
}
@@ -554,7 +606,10 @@ xfs_scrub_agi(
xfs_agino_t agino;
xfs_agino_t first_agino;
xfs_agino_t last_agino;
+ xfs_agino_t count;
+ xfs_agino_t freecount;
bool is_freesp;
+ bool has_inodes;
int i;
int level;
int error = 0;
@@ -640,6 +695,32 @@ xfs_scrub_agi(
XFS_SCRUB_AGI_CHECK(!is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur,
+ XFS_AGI_BLOCK(mp), 1, &has_inodes);
+ if (!xfs_scrub_should_xref(sc, err2, &psa->ino_cur))
+ goto skip_inobt_xref;
+ XFS_SCRUB_AGI_CHECK(!has_inodes);
+ err2 = xfs_ialloc_count_inodes(psa->ino_cur, &count,
+ &freecount);
+ if (xfs_scrub_should_xref(sc, err2, &psa->ino_cur)) {
+ XFS_SCRUB_AGI_CHECK(be32_to_cpu(agi->agi_count) ==
+ count);
+ XFS_SCRUB_AGI_CHECK(be32_to_cpu(agi->agi_freecount) ==
+ freecount);
+ }
+ }
+
+skip_inobt_xref:
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur,
+ XFS_AGI_BLOCK(mp), 1, &has_inodes);
+ if (xfs_scrub_should_xref(sc, err2, &psa->fino_cur))
+ XFS_SCRUB_AGI_CHECK(!has_inodes);
+ }
+
out:
return error;
}
diff --git a/fs/xfs/repair/alloc.c b/fs/xfs/repair/alloc.c
index 6369f09..d7ca294 100644
--- a/fs/xfs/repair/alloc.c
+++ b/fs/xfs/repair/alloc.c
@@ -32,6 +32,7 @@
#include "xfs_sb.h"
#include "xfs_rmap.h"
#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
#include "repair/common.h"
#include "repair/btree.h"
@@ -51,6 +52,7 @@ xfs_scrub_allocbt_helper(
xfs_agblock_t bno;
xfs_extlen_t flen;
xfs_extlen_t len;
+ bool has_inodes;
int has_otherrec;
int error = 0;
int err2;
@@ -94,6 +96,22 @@ xfs_scrub_allocbt_helper(
}
}
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur, bno,
+ len, &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->ino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs, !has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur, bno,
+ len, &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->fino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs, !has_inodes);
+ }
+
out:
return error;
}
diff --git a/fs/xfs/repair/bmap.c b/fs/xfs/repair/bmap.c
index b4f0abb..94d40f4 100644
--- a/fs/xfs/repair/bmap.c
+++ b/fs/xfs/repair/bmap.c
@@ -37,6 +37,7 @@
#include "xfs_bmap_btree.h"
#include "xfs_rmap.h"
#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
#include "repair/common.h"
#include "repair/btree.h"
@@ -80,6 +81,7 @@ xfs_scrub_bmap_extent(
xfs_agnumber_t agno;
xfs_fsblock_t bno;
bool is_freesp;
+ bool has_inodes;
int error = 0;
int err2 = 0;
@@ -134,6 +136,24 @@ xfs_scrub_bmap_extent(
XFS_SCRUB_BMAP_CHECK(!is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (sa.ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(sa.ino_cur,
+ irec->br_startblock, irec->br_blockcount,
+ &has_inodes);
+ if (xfs_scrub_should_xref(info->sc, err2, &sa.ino_cur))
+ XFS_SCRUB_BMAP_CHECK(!has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (sa.fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(sa.fino_cur,
+ irec->br_startblock, irec->br_blockcount,
+ &has_inodes);
+ if (xfs_scrub_should_xref(info->sc, err2, &sa.fino_cur))
+ XFS_SCRUB_BMAP_CHECK(!has_inodes);
+ }
+
xfs_scrub_ag_free(&sa);
out:
info->lastoff = irec->br_startoff + irec->br_blockcount;
diff --git a/fs/xfs/repair/ialloc.c b/fs/xfs/repair/ialloc.c
index 4f01932..141c6bb 100644
--- a/fs/xfs/repair/ialloc.c
+++ b/fs/xfs/repair/ialloc.c
@@ -53,9 +53,11 @@ xfs_scrub_iallocbt_chunk(
struct xfs_mount *mp = bs->cur->bc_mp;
struct xfs_agf *agf;
struct xfs_scrub_ag *psa;
+ struct xfs_btree_cur **xcur;
xfs_agblock_t eoag;
xfs_agblock_t bno;
bool is_freesp;
+ bool has_inodes;
int error = 0;
int err2;
@@ -89,6 +91,20 @@ xfs_scrub_iallocbt_chunk(
XFS_SCRUB_BTREC_CHECK(bs, !is_freesp);
}
+ /* If we have a finobt, cross-reference with it. */
+ if (bs->cur == psa->fino_cur)
+ xcur = &psa->ino_cur;
+ else if (bs->cur == psa->ino_cur && irec->ir_freecount > 0)
+ xcur = &psa->fino_cur;
+ else
+ xcur = NULL;
+ if (xcur && *xcur) {
+ err2 = xfs_ialloc_has_inode_record(*xcur,
+ agino, agino, &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, xcur))
+ XFS_SCRUB_BTREC_CHECK(bs, has_inodes);
+ }
+
out:
return error;
}
diff --git a/fs/xfs/repair/refcount.c b/fs/xfs/repair/refcount.c
index 527a916..95b54d6 100644
--- a/fs/xfs/repair/refcount.c
+++ b/fs/xfs/repair/refcount.c
@@ -32,6 +32,7 @@
#include "xfs_sb.h"
#include "xfs_rmap.h"
#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
#include "repair/common.h"
#include "repair/btree.h"
@@ -50,6 +51,7 @@ xfs_scrub_refcountbt_helper(
xfs_agblock_t eoag;
bool has_cowflag;
bool is_freesp;
+ bool has_inodes;
int error = 0;
int err2;
@@ -89,6 +91,24 @@ xfs_scrub_refcountbt_helper(
XFS_SCRUB_BTREC_CHECK(bs, !is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur,
+ irec.rc_startblock, irec.rc_blockcount,
+ &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->ino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs, !has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur,
+ irec.rc_startblock, irec.rc_blockcount,
+ &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->fino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs, !has_inodes);
+ }
+
out:
return error;
}
diff --git a/fs/xfs/repair/rmap.c b/fs/xfs/repair/rmap.c
index 401580e..961afc5 100644
--- a/fs/xfs/repair/rmap.c
+++ b/fs/xfs/repair/rmap.c
@@ -32,6 +32,7 @@
#include "xfs_sb.h"
#include "xfs_rmap.h"
#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
#include "repair/common.h"
#include "repair/btree.h"
@@ -53,6 +54,7 @@ xfs_scrub_rmapbt_helper(
bool is_unwritten;
bool is_bmbt;
bool is_attr;
+ bool has_inodes;
int error = 0;
int err2;
@@ -120,6 +122,28 @@ xfs_scrub_rmapbt_helper(
XFS_SCRUB_BTREC_CHECK(bs, !is_freesp);
}
+ /* Cross-reference with inobt. */
+ if (psa->ino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->ino_cur,
+ irec.rm_startblock, irec.rm_blockcount,
+ &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->ino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs,
+ irec.rm_owner == XFS_RMAP_OWN_INODES ||
+ !has_inodes);
+ }
+
+ /* Cross-reference with finobt. */
+ if (psa->fino_cur) {
+ err2 = xfs_ialloc_has_inodes_at_extent(psa->fino_cur,
+ irec.rm_startblock, irec.rm_blockcount,
+ &has_inodes);
+ if (xfs_scrub_btree_should_xref(bs, err2, &psa->fino_cur))
+ XFS_SCRUB_BTREC_CHECK(bs,
+ irec.rm_owner == XFS_RMAP_OWN_INODES ||
+ !has_inodes);
+ }
+
out:
return error;
}
--
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