@@ -105,6 +105,7 @@ xfs-y += xfs_aops.o \
xfs-$(CONFIG_XFS_ONLINE_REPAIR) += $(addprefix repair/, \
agheader.o \
alloc.o \
+ bmap.o \
btree.o \
common.o \
ialloc.o \
@@ -623,6 +623,16 @@ xfs_bmbt_init_key_from_rec(
}
STATIC void
+xfs_bmbt_init_high_key_from_rec(
+ union xfs_btree_key *key,
+ union xfs_btree_rec *rec)
+{
+ key->bmbt.br_startoff = cpu_to_be64(
+ xfs_bmbt_disk_get_startoff(&rec->bmbt) +
+ xfs_bmbt_disk_get_blockcount(&rec->bmbt) - 1);
+}
+
+STATIC void
xfs_bmbt_init_rec_from_cur(
struct xfs_btree_cur *cur,
union xfs_btree_rec *rec)
@@ -647,6 +657,16 @@ xfs_bmbt_key_diff(
cur->bc_rec.b.br_startoff;
}
+STATIC __int64_t
+xfs_bmbt_diff_two_keys(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_key *k1,
+ union xfs_btree_key *k2)
+{
+ return (__int64_t)be64_to_cpu(k1->bmbt.br_startoff) -
+ be64_to_cpu(k2->bmbt.br_startoff);
+}
+
static bool
xfs_bmbt_verify(
struct xfs_buf *bp)
@@ -737,7 +757,6 @@ const struct xfs_buf_ops xfs_bmbt_buf_ops = {
};
-#if defined(DEBUG) || defined(XFS_WARN)
STATIC int
xfs_bmbt_keys_inorder(
struct xfs_btree_cur *cur,
@@ -758,7 +777,6 @@ xfs_bmbt_recs_inorder(
xfs_bmbt_disk_get_blockcount(&r1->bmbt) <=
xfs_bmbt_disk_get_startoff(&r2->bmbt);
}
-#endif /* DEBUG */
static const struct xfs_btree_ops xfs_bmbt_ops = {
.rec_len = sizeof(xfs_bmbt_rec_t),
@@ -772,14 +790,14 @@ static const struct xfs_btree_ops xfs_bmbt_ops = {
.get_minrecs = xfs_bmbt_get_minrecs,
.get_dmaxrecs = xfs_bmbt_get_dmaxrecs,
.init_key_from_rec = xfs_bmbt_init_key_from_rec,
+ .init_high_key_from_rec = xfs_bmbt_init_high_key_from_rec,
.init_rec_from_cur = xfs_bmbt_init_rec_from_cur,
.init_ptr_from_cur = xfs_bmbt_init_ptr_from_cur,
.key_diff = xfs_bmbt_key_diff,
+ .diff_two_keys = xfs_bmbt_diff_two_keys,
.buf_ops = &xfs_bmbt_buf_ops,
-#if defined(DEBUG) || defined(XFS_WARN)
.keys_inorder = xfs_bmbt_keys_inorder,
.recs_inorder = xfs_bmbt_recs_inorder,
-#endif
};
/*
@@ -586,7 +586,10 @@ struct xfs_scrub_metadata {
#define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */
#define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */
#define XFS_SCRUB_TYPE_INODE 11 /* inode record */
-#define XFS_SCRUB_TYPE_MAX 11
+#define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */
+#define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */
+#define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */
+#define XFS_SCRUB_TYPE_MAX 14
#define XFS_SCRUB_FLAG_REPAIR 0x1 /* i: repair this metadata */
#define XFS_SCRUB_FLAG_CORRUPT 0x2 /* o: needs repair */
new file mode 100644
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2016-2017 Oracle. All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_trace.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_bmap.h"
+#include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_rmap.h"
+#include "repair/common.h"
+#include "repair/btree.h"
+
+/*
+ * Inode fork block mapping (BMBT) scrubber.
+ * More complex than the others because we have to scrub
+ * all the extents regardless of whether or not the fork
+ * is in btree format.
+ */
+
+struct xfs_scrub_bmap_info {
+ struct xfs_scrub_context *sc;
+ const char *type;
+ xfs_daddr_t eofs;
+ xfs_fileoff_t lastoff;
+ bool is_rt;
+ bool is_shared;
+ bool scrub_btrec;
+ int whichfork;
+};
+
+#define XFS_SCRUB_BMAP_CHECK(fs_ok) \
+ XFS_SCRUB_INO_CHECK(info->sc, info->sc->ip->i_ino, bp, info->type, fs_ok)
+#define XFS_SCRUB_BMAP_GOTO(fs_ok, label) \
+ XFS_SCRUB_INO_GOTO(info->sc, info->sc->ip->i_ino, bp, info->type, fs_ok, label)
+#define XFS_SCRUB_BMAP_OP_ERROR_GOTO(label) \
+ XFS_SCRUB_OP_ERROR_GOTO(info->sc, agno, 0, "bmap", &error, label);
+/* Scrub a single extent record. */
+STATIC int
+xfs_scrub_bmap_extent(
+ struct xfs_inode *ip,
+ struct xfs_btree_cur *cur,
+ struct xfs_scrub_bmap_info *info,
+ struct xfs_bmbt_irec *irec)
+{
+ struct xfs_scrub_ag sa = {0};
+ struct xfs_mount *mp = ip->i_mount;
+ struct xfs_buf *bp = NULL;
+ xfs_daddr_t daddr;
+ xfs_daddr_t dlen;
+ xfs_agnumber_t agno;
+ int error = 0;
+
+ if (cur)
+ xfs_btree_get_block(cur, 0, &bp);
+
+ XFS_SCRUB_BMAP_CHECK(irec->br_startoff >= info->lastoff);
+ XFS_SCRUB_BMAP_CHECK(irec->br_startblock != HOLESTARTBLOCK);
+
+ if (isnullstartblock(irec->br_startblock)) {
+ XFS_SCRUB_BMAP_CHECK(irec->br_state == XFS_EXT_NORM);
+ goto out;
+ }
+
+ /* Actual mapping, so check the block ranges. */
+ if (info->is_rt) {
+ daddr = XFS_FSB_TO_BB(mp, irec->br_startblock);
+ agno = NULLAGNUMBER;
+ } else {
+ daddr = XFS_FSB_TO_DADDR(mp, irec->br_startblock);
+ agno = XFS_FSB_TO_AGNO(mp, irec->br_startblock);
+ XFS_SCRUB_BMAP_GOTO(agno < mp->m_sb.sb_agcount, out);
+ }
+ dlen = XFS_FSB_TO_BB(mp, irec->br_blockcount);
+ XFS_SCRUB_BMAP_CHECK(daddr < info->eofs);
+ XFS_SCRUB_BMAP_CHECK(daddr + dlen < info->eofs);
+ XFS_SCRUB_BMAP_CHECK(irec->br_state != XFS_EXT_UNWRITTEN ||
+ xfs_sb_version_hasextflgbit(&mp->m_sb));
+ if (error)
+ goto out;
+
+ /* Set ourselves up for cross-referencing later. */
+ if (!info->is_rt) {
+ if (!xfs_scrub_ag_can_lock(info->sc, agno))
+ return -EDEADLOCK;
+ error = xfs_scrub_ag_init(info->sc, agno, &sa);
+ XFS_SCRUB_BMAP_OP_ERROR_GOTO(out);
+ }
+
+ xfs_scrub_ag_free(&sa);
+out:
+ info->lastoff = irec->br_startoff + irec->br_blockcount;
+ return error;
+}
+#undef XFS_SCRUB_BMAP_OP_ERROR_GOTO
+#undef XFS_SCRUB_BMAP_GOTO
+
+/* Scrub a bmbt record. */
+STATIC int
+xfs_scrub_bmapbt_helper(
+ struct xfs_scrub_btree *bs,
+ union xfs_btree_rec *rec)
+{
+ struct xfs_bmbt_rec_host ihost;
+ struct xfs_bmbt_irec irec;
+ struct xfs_scrub_bmap_info *info = bs->private;
+ struct xfs_inode *ip = bs->cur->bc_private.b.ip;
+ struct xfs_buf *bp = NULL;
+ struct xfs_btree_block *block;
+ uint64_t owner;
+ int i;
+
+ /*
+ * Check the owners of the btree blocks up to the level below
+ * the root since the verifiers don't do that.
+ */
+ if (xfs_sb_version_hascrc(&bs->cur->bc_mp->m_sb) &&
+ bs->cur->bc_ptrs[0] == 1) {
+ for (i = 0; i < bs->cur->bc_nlevels - 1; i++) {
+ block = xfs_btree_get_block(bs->cur, i, &bp);
+ owner = be64_to_cpu(block->bb_u.l.bb_owner);
+ XFS_SCRUB_BMAP_CHECK(owner == ip->i_ino);
+ }
+ }
+
+ if (!info->scrub_btrec)
+ return 0;
+
+ /* Set up the in-core record and scrub it. */
+ ihost.l0 = be64_to_cpu(rec->bmbt.l0);
+ ihost.l1 = be64_to_cpu(rec->bmbt.l1);
+ xfs_bmbt_get_all(&ihost, &irec);
+ return xfs_scrub_bmap_extent(ip, bs->cur, info, &irec);
+}
+#undef XFS_SCRUB_BMAP_CHECK
+
+#define XFS_SCRUB_FORK_CHECK(fs_ok) \
+ XFS_SCRUB_INO_CHECK(sc, ip->i_ino, NULL, info.type, fs_ok);
+#define XFS_SCRUB_FORK_GOTO(fs_ok, label) \
+ XFS_SCRUB_INO_GOTO(sc, ip->i_ino, NULL, info.type, fs_ok, label);
+#define XFS_SCRUB_FORK_OP_ERROR_GOTO(label) \
+ XFS_SCRUB_OP_ERROR_GOTO(sc, \
+ XFS_INO_TO_AGNO(ip->i_mount, ip->i_ino), \
+ XFS_INO_TO_AGBNO(ip->i_mount, ip->i_ino), \
+ info.type, &error, label)
+/* Scrub an inode fork's block mappings. */
+STATIC int
+xfs_scrub_bmap(
+ struct xfs_scrub_context *sc,
+ int whichfork)
+{
+ struct xfs_bmbt_irec irec;
+ struct xfs_scrub_bmap_info info = {0};
+ struct xfs_owner_info oinfo;
+ struct xfs_mount *mp = sc->tp->t_mountp;
+ struct xfs_inode *ip = sc->ip;
+ struct xfs_ifork *ifp;
+ struct xfs_btree_cur *cur;
+ xfs_fileoff_t off;
+ xfs_fileoff_t endoff;
+ int nmaps;
+ int flags = 0;
+ int error = 0;
+ int err2 = 0;
+
+ switch (whichfork) {
+ case XFS_DATA_FORK:
+ info.type = "data fork";
+ break;
+ case XFS_ATTR_FORK:
+ info.type = "attr fork";
+ break;
+ case XFS_COW_FORK:
+ info.type = "CoW fork";
+ break;
+ }
+ ifp = XFS_IFORK_PTR(ip, whichfork);
+
+ info.is_rt = whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip);
+ info.eofs = XFS_FSB_TO_BB(mp, info.is_rt ? mp->m_sb.sb_rblocks :
+ mp->m_sb.sb_dblocks);
+ info.whichfork = whichfork;
+ info.is_shared = whichfork == XFS_DATA_FORK && xfs_is_reflink_inode(ip);
+ info.sc = sc;
+
+ switch (whichfork) {
+ case XFS_COW_FORK:
+ /* Non-existent CoW forks are ignorable. */
+ if (!ifp)
+ goto out_unlock;
+ /* No CoW forks on non-reflink inodes/filesystems. */
+ XFS_SCRUB_FORK_GOTO(xfs_is_reflink_inode(ip), out_unlock);
+ break;
+ case XFS_ATTR_FORK:
+ if (!ifp)
+ goto out_unlock;
+ XFS_SCRUB_FORK_CHECK(xfs_sb_version_hasattr(&mp->m_sb));
+ break;
+ }
+
+ /* Check the fork values */
+ switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+ case XFS_DINODE_FMT_UUID:
+ case XFS_DINODE_FMT_DEV:
+ case XFS_DINODE_FMT_LOCAL:
+ /* No mappings to check. */
+ goto out_unlock;
+ case XFS_DINODE_FMT_EXTENTS:
+ XFS_SCRUB_FORK_GOTO(ifp->if_flags & XFS_IFEXTENTS, out_unlock);
+ break;
+ case XFS_DINODE_FMT_BTREE:
+ XFS_SCRUB_FORK_CHECK(whichfork != XFS_COW_FORK);
+ /*
+ * Scan the btree. If extents aren't loaded, have the btree
+ * scrub routine examine the extent records.
+ */
+ info.scrub_btrec = !(ifp->if_flags & XFS_IFEXTENTS);
+
+ cur = xfs_bmbt_init_cursor(mp, sc->tp, ip, whichfork);
+ xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, whichfork);
+ err2 = xfs_scrub_btree(sc, cur, xfs_scrub_bmapbt_helper,
+ &oinfo, &info);
+ xfs_btree_del_cursor(cur, err2 ? XFS_BTREE_ERROR :
+ XFS_BTREE_NOERROR);
+ if (err2 == -EDEADLOCK)
+ return err2;
+ else if (err2)
+ goto out_unlock;
+ /* Skip in-core extent checking if we did it in the btree */
+ if (info.scrub_btrec)
+ goto out_unlock;
+ break;
+ default:
+ XFS_SCRUB_FORK_GOTO(false, out_unlock);
+ break;
+ }
+
+ /* Extent data is in memory, so scrub that. */
+ switch (whichfork) {
+ case XFS_ATTR_FORK:
+ flags |= XFS_BMAPI_ATTRFORK;
+ break;
+ case XFS_COW_FORK:
+ flags |= XFS_BMAPI_COWFORK;
+ break;
+ default:
+ break;
+ }
+
+ /* Find the offset of the last extent in the mapping. */
+ error = xfs_bmap_last_offset(ip, &endoff, whichfork);
+ XFS_SCRUB_FORK_OP_ERROR_GOTO(out_unlock);
+
+ /* Scrub extent records. */
+ off = 0;
+ while (true) {
+ nmaps = 1;
+ err2 = xfs_bmapi_read(ip, off, endoff - off, &irec,
+ &nmaps, flags);
+ if (err2 || nmaps == 0 || irec.br_startoff > endoff)
+ break;
+ /* Scrub non-hole extent. */
+ if (irec.br_startblock != HOLESTARTBLOCK) {
+ err2 = xfs_scrub_bmap_extent(ip, NULL, &info, &irec);
+ if (err2 == -EDEADLOCK)
+ return err2;
+ else if (!error && err2)
+ error = err2;
+ if (xfs_scrub_should_terminate(&error))
+ break;
+ }
+
+ off += irec.br_blockcount;
+ }
+
+out_unlock:
+ if (error == 0 && err2 != 0)
+ error = err2;
+ return error;
+}
+#undef XFS_SCRUB_FORK_CHECK
+#undef XFS_SCRUB_FORK_GOTO
+
+/* Scrub an inode's data fork. */
+int
+xfs_scrub_bmap_data(
+ struct xfs_scrub_context *sc)
+{
+ return xfs_scrub_bmap(sc, XFS_DATA_FORK);
+}
+
+/* Scrub an inode's attr fork. */
+int
+xfs_scrub_bmap_attr(
+ struct xfs_scrub_context *sc)
+{
+ return xfs_scrub_bmap(sc, XFS_ATTR_FORK);
+}
+
+/* Scrub an inode's CoW fork. */
+int
+xfs_scrub_bmap_cow(
+ struct xfs_scrub_context *sc)
+{
+ if (!xfs_is_reflink_inode(sc->ip))
+ return -ENOENT;
+
+ return xfs_scrub_bmap(sc, XFS_COW_FORK);
+}
@@ -801,6 +801,26 @@ xfs_scrub_setup_inode_raw(
return 0;
}
+/* Set us up with an inode and AG headers, if needed. */
+STATIC int
+xfs_scrub_setup_inode_bmap(
+ struct xfs_scrub_context *sc,
+ struct xfs_inode *ip,
+ struct xfs_scrub_metadata *sm,
+ bool retry_deadlocked)
+{
+ int error;
+
+ error = xfs_scrub_setup_inode(sc, ip, sm, retry_deadlocked);
+ if (error || !retry_deadlocked)
+ return error;
+
+ error = xfs_scrub_ag_lock_all(sc);
+ if (error)
+ return xfs_scrub_teardown(sc, ip, error);
+ return 0;
+}
+
/* Scrubbing dispatch. */
struct xfs_scrub_meta_fns {
@@ -824,6 +844,9 @@ static const struct xfs_scrub_meta_fns meta_scrub_fns[] = {
{xfs_scrub_setup_ag_header, xfs_scrub_rmapbt, NULL, xfs_sb_version_hasrmapbt},
{xfs_scrub_setup_ag_header, xfs_scrub_refcountbt, NULL, xfs_sb_version_hasreflink},
{xfs_scrub_setup_inode_raw, xfs_scrub_inode, NULL, NULL},
+ {xfs_scrub_setup_inode_bmap, xfs_scrub_bmap_data, NULL, NULL},
+ {xfs_scrub_setup_inode_bmap, xfs_scrub_bmap_attr, NULL, NULL},
+ {xfs_scrub_setup_inode_bmap, xfs_scrub_bmap_cow, NULL, NULL},
};
/* Dispatch metadata scrubbing. */
@@ -205,5 +205,8 @@ int xfs_scrub_finobt(struct xfs_scrub_context *sc);
int xfs_scrub_rmapbt(struct xfs_scrub_context *sc);
int xfs_scrub_refcountbt(struct xfs_scrub_context *sc);
int xfs_scrub_inode(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_data(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_attr(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_cow(struct xfs_scrub_context *sc);
#endif /* __XFS_REPAIR_COMMON_H__ */
@@ -231,7 +231,7 @@ xfs_bmap_count_leaves(
xfs_ifork_t *ifp,
xfs_extnum_t idx,
int numrecs,
- int *count)
+ unsigned long long *count)
{
int b;
@@ -250,7 +250,7 @@ xfs_bmap_disk_count_leaves(
struct xfs_mount *mp,
struct xfs_btree_block *block,
int numrecs,
- int *count)
+ unsigned long long *count)
{
int b;
xfs_bmbt_rec_t *frp;
@@ -265,17 +265,18 @@ xfs_bmap_disk_count_leaves(
* Recursively walks each level of a btree
* to count total fsblocks in use.
*/
-STATIC int /* error */
+STATIC int
xfs_bmap_count_tree(
- xfs_mount_t *mp, /* file system mount point */
- xfs_trans_t *tp, /* transaction pointer */
- xfs_ifork_t *ifp, /* inode fork pointer */
- xfs_fsblock_t blockno, /* file system block number */
- int levelin, /* level in btree */
- int *count) /* Count of blocks */
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ struct xfs_ifork *ifp,
+ xfs_fsblock_t blockno,
+ int levelin,
+ unsigned int *nextents,
+ unsigned long long *count)
{
int error;
- xfs_buf_t *bp, *nbp;
+ struct xfs_buf *bp, *nbp;
int level = levelin;
__be64 *pp;
xfs_fsblock_t bno = blockno;
@@ -308,8 +309,9 @@ xfs_bmap_count_tree(
/* Dive to the next level */
pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
bno = be64_to_cpu(*pp);
- if (unlikely((error =
- xfs_bmap_count_tree(mp, tp, ifp, bno, level, count)) < 0)) {
+ error = xfs_bmap_count_tree(mp, tp, ifp, bno, level, nextents,
+ count);
+ if (error) {
xfs_trans_brelse(tp, bp);
XFS_ERROR_REPORT("xfs_bmap_count_tree(1)",
XFS_ERRLEVEL_LOW, mp);
@@ -321,6 +323,7 @@ xfs_bmap_count_tree(
for (;;) {
nextbno = be64_to_cpu(block->bb_u.l.bb_rightsib);
numrecs = be16_to_cpu(block->bb_numrecs);
+ (*nextents) += numrecs;
xfs_bmap_disk_count_leaves(mp, block, numrecs, count);
xfs_trans_brelse(tp, bp);
if (nextbno == NULLFSBLOCK)
@@ -341,44 +344,61 @@ xfs_bmap_count_tree(
/*
* Count fsblocks of the given fork.
*/
-static int /* error */
+int
xfs_bmap_count_blocks(
- xfs_trans_t *tp, /* transaction pointer */
- xfs_inode_t *ip, /* incore inode */
- int whichfork, /* data or attr fork */
- int *count) /* out: count of blocks */
+ struct xfs_trans *tp,
+ struct xfs_inode *ip,
+ int whichfork,
+ unsigned int *nextents,
+ unsigned long long *count)
{
struct xfs_btree_block *block; /* current btree block */
xfs_fsblock_t bno; /* block # of "block" */
- xfs_ifork_t *ifp; /* fork structure */
+ struct xfs_ifork *ifp; /* fork structure */
int level; /* btree level, for checking */
- xfs_mount_t *mp; /* file system mount structure */
+ struct xfs_mount *mp; /* file system mount structure */
__be64 *pp; /* pointer to block address */
+ int error;
bno = NULLFSBLOCK;
mp = ip->i_mount;
+ *nextents = 0;
ifp = XFS_IFORK_PTR(ip, whichfork);
- if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
- xfs_bmap_count_leaves(ifp, 0, xfs_iext_count(ifp), count);
+ if (!ifp)
return 0;
- }
- /*
- * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
- */
- block = ifp->if_broot;
- level = be16_to_cpu(block->bb_level);
- ASSERT(level > 0);
- pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
- bno = be64_to_cpu(*pp);
- ASSERT(bno != NULLFSBLOCK);
- ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
- ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
-
- if (unlikely(xfs_bmap_count_tree(mp, tp, ifp, bno, level, count) < 0)) {
- XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)", XFS_ERRLEVEL_LOW,
- mp);
- return -EFSCORRUPTED;
+ switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+ case XFS_DINODE_FMT_EXTENTS:
+ *nextents = xfs_iext_count(ifp);
+ xfs_bmap_count_leaves(ifp, 0, (*nextents), count);
+ return 0;
+ case XFS_DINODE_FMT_BTREE:
+ if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+ error = xfs_iread_extents(tp, ip, whichfork);
+ if (error)
+ return error;
+ }
+
+ /*
+ * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
+ */
+ block = ifp->if_broot;
+ level = be16_to_cpu(block->bb_level);
+ ASSERT(level > 0);
+ pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
+ bno = be64_to_cpu(*pp);
+ ASSERT(bno != NULLFSBLOCK);
+ ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
+ ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
+
+ error = xfs_bmap_count_tree(mp, tp, ifp, bno, level,
+ nextents, count);
+ if (error) {
+ XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)",
+ XFS_ERRLEVEL_LOW, mp);
+ return -EFSCORRUPTED;
+ }
+ return 0;
}
return 0;
@@ -1788,8 +1808,9 @@ xfs_swap_extent_forks(
int *target_log_flags)
{
struct xfs_ifork tempifp, *ifp, *tifp;
- int aforkblks = 0;
- int taforkblks = 0;
+ unsigned long long aforkblks = 0;
+ unsigned long long taforkblks = 0;
+ unsigned int junk;
xfs_extnum_t nextents;
__uint64_t tmp;
int error;
@@ -1799,14 +1820,14 @@ xfs_swap_extent_forks(
*/
if ( ((XFS_IFORK_Q(ip) != 0) && (ip->i_d.di_anextents > 0)) &&
(ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
- error = xfs_bmap_count_blocks(tp, ip, XFS_ATTR_FORK,
+ error = xfs_bmap_count_blocks(tp, ip, XFS_ATTR_FORK, &junk,
&aforkblks);
if (error)
return error;
}
if ( ((XFS_IFORK_Q(tip) != 0) && (tip->i_d.di_anextents > 0)) &&
(tip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)) {
- error = xfs_bmap_count_blocks(tp, tip, XFS_ATTR_FORK,
+ error = xfs_bmap_count_blocks(tp, tip, XFS_ATTR_FORK, &junk,
&taforkblks);
if (error)
return error;
@@ -71,4 +71,8 @@ int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
+int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
+ int whichfork, unsigned int *nextents,
+ unsigned long long *count);
+
#endif /* __XFS_BMAP_UTIL_H__ */
@@ -3473,7 +3473,10 @@ DEFINE_GETFSMAP_EVENT(xfs_getfsmap_mapping);
{ XFS_SCRUB_TYPE_FINOBT, "finobt" }, \
{ XFS_SCRUB_TYPE_RMAPBT, "rmapbt" }, \
{ XFS_SCRUB_TYPE_REFCNTBT, "refcountbt" }, \
- { XFS_SCRUB_TYPE_INODE, "inode" }
+ { XFS_SCRUB_TYPE_INODE, "inode" }, \
+ { XFS_SCRUB_TYPE_BMBTD, "bmapbtd" }, \
+ { XFS_SCRUB_TYPE_BMBTA, "bmapbta" }, \
+ { XFS_SCRUB_TYPE_BMBTC, "bmapbtc" }
DECLARE_EVENT_CLASS(xfs_scrub_class,
TP_PROTO(struct xfs_inode *ip, int type, xfs_agnumber_t agno,
xfs_ino_t inum, unsigned int gen, unsigned int flags,
Scrub an individual inode's block mappings to make sure they make sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> --- fs/xfs/Makefile | 1 fs/xfs/libxfs/xfs_bmap_btree.c | 26 +++ fs/xfs/libxfs/xfs_fs.h | 5 - fs/xfs/repair/bmap.c | 337 ++++++++++++++++++++++++++++++++++++++++ fs/xfs/repair/common.c | 23 +++ fs/xfs/repair/common.h | 3 fs/xfs/xfs_bmap_util.c | 105 +++++++----- fs/xfs/xfs_bmap_util.h | 4 fs/xfs/xfs_trace.h | 5 - 9 files changed, 461 insertions(+), 48 deletions(-) create mode 100644 fs/xfs/repair/bmap.c -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html