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Diffstat (limited to 'fs/xfs/libxfs/xfs_da_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.c384
1 files changed, 295 insertions, 89 deletions
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index 897749c41f36..90f7fc219fcc 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -22,6 +22,8 @@
#include "xfs_trace.h"
#include "xfs_buf_item.h"
#include "xfs_log.h"
+#include "xfs_errortag.h"
+#include "xfs_health.h"
/*
* xfs_da_btree.c
@@ -72,16 +74,23 @@ STATIC int xfs_da3_blk_unlink(xfs_da_state_t *state,
xfs_da_state_blk_t *save_blk);
-kmem_zone_t *xfs_da_state_zone; /* anchor for state struct zone */
+struct kmem_cache *xfs_da_state_cache; /* anchor for dir/attr state */
/*
* Allocate a dir-state structure.
* We don't put them on the stack since they're large.
*/
-xfs_da_state_t *
-xfs_da_state_alloc(void)
+struct xfs_da_state *
+xfs_da_state_alloc(
+ struct xfs_da_args *args)
{
- return kmem_zone_zalloc(xfs_da_state_zone, KM_NOFS);
+ struct xfs_da_state *state;
+
+ state = kmem_cache_zalloc(xfs_da_state_cache,
+ GFP_KERNEL | __GFP_NOLOCKDEP | __GFP_NOFAIL);
+ state->args = args;
+ state->mp = args->dp->i_mount;
+ return state;
}
/*
@@ -107,7 +116,18 @@ xfs_da_state_free(xfs_da_state_t *state)
#ifdef DEBUG
memset((char *)state, 0, sizeof(*state));
#endif /* DEBUG */
- kmem_cache_free(xfs_da_state_zone, state);
+ kmem_cache_free(xfs_da_state_cache, state);
+}
+
+void
+xfs_da_state_reset(
+ struct xfs_da_state *state,
+ struct xfs_da_args *args)
+{
+ xfs_da_state_kill_altpath(state);
+ memset(state, 0, sizeof(struct xfs_da_state));
+ state->args = args;
+ state->mp = state->args->dp->i_mount;
}
static inline int xfs_dabuf_nfsb(struct xfs_mount *mp, int whichfork)
@@ -123,7 +143,7 @@ xfs_da3_node_hdr_from_disk(
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (xfs_has_crc(mp)) {
struct xfs_da3_intnode *from3 = (struct xfs_da3_intnode *)from;
to->forw = be32_to_cpu(from3->hdr.info.hdr.forw);
@@ -150,7 +170,7 @@ xfs_da3_node_hdr_to_disk(
struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from)
{
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (xfs_has_crc(mp)) {
struct xfs_da3_intnode *to3 = (struct xfs_da3_intnode *)to;
ASSERT(from->magic == XFS_DA3_NODE_MAGIC);
@@ -185,10 +205,10 @@ xfs_da3_blkinfo_verify(
if (!xfs_verify_magic16(bp, hdr->magic))
return __this_address;
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (xfs_has_crc(mp)) {
if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
return __this_address;
- if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
+ if (be64_to_cpu(hdr3->blkno) != xfs_buf_daddr(bp))
return __this_address;
if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn)))
return __this_address;
@@ -232,6 +252,51 @@ xfs_da3_node_verify(
return NULL;
}
+xfs_failaddr_t
+xfs_da3_node_header_check(
+ struct xfs_buf *bp,
+ xfs_ino_t owner)
+{
+ struct xfs_mount *mp = bp->b_mount;
+
+ if (xfs_has_crc(mp)) {
+ struct xfs_da3_blkinfo *hdr3 = bp->b_addr;
+
+ if (hdr3->hdr.magic != cpu_to_be16(XFS_DA3_NODE_MAGIC))
+ return __this_address;
+
+ if (be64_to_cpu(hdr3->owner) != owner)
+ return __this_address;
+ }
+
+ return NULL;
+}
+
+xfs_failaddr_t
+xfs_da3_header_check(
+ struct xfs_buf *bp,
+ xfs_ino_t owner)
+{
+ struct xfs_mount *mp = bp->b_mount;
+ struct xfs_da_blkinfo *hdr = bp->b_addr;
+
+ if (!xfs_has_crc(mp))
+ return NULL;
+
+ switch (hdr->magic) {
+ case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC):
+ return xfs_attr3_leaf_header_check(bp, owner);
+ case cpu_to_be16(XFS_DA3_NODE_MAGIC):
+ return xfs_da3_node_header_check(bp, owner);
+ case cpu_to_be16(XFS_DIR3_LEAF1_MAGIC):
+ case cpu_to_be16(XFS_DIR3_LEAFN_MAGIC):
+ return xfs_dir3_leaf_header_check(bp, owner);
+ }
+
+ ASSERT(0);
+ return NULL;
+}
+
static void
xfs_da3_node_write_verify(
struct xfs_buf *bp)
@@ -247,7 +312,7 @@ xfs_da3_node_write_verify(
return;
}
- if (!xfs_sb_version_hascrc(&mp->m_sb))
+ if (!xfs_has_crc(mp))
return;
if (bip)
@@ -276,7 +341,7 @@ xfs_da3_node_read_verify(
__this_address);
break;
}
- /* fall through */
+ fallthrough;
case XFS_DA_NODE_MAGIC:
fa = xfs_da3_node_verify(bp);
if (fa)
@@ -334,6 +399,8 @@ const struct xfs_buf_ops xfs_da3_node_buf_ops = {
static int
xfs_da3_node_set_type(
struct xfs_trans *tp,
+ struct xfs_inode *dp,
+ int whichfork,
struct xfs_buf *bp)
{
struct xfs_da_blkinfo *info = bp->b_addr;
@@ -355,6 +422,7 @@ xfs_da3_node_set_type(
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, tp->t_mountp,
info, sizeof(*info));
xfs_trans_brelse(tp, bp);
+ xfs_dirattr_mark_sick(dp, whichfork);
return -EFSCORRUPTED;
}
}
@@ -373,7 +441,7 @@ xfs_da3_node_read(
&xfs_da3_node_buf_ops);
if (error || !*bpp || !tp)
return error;
- return xfs_da3_node_set_type(tp, *bpp);
+ return xfs_da3_node_set_type(tp, dp, whichfork, *bpp);
}
int
@@ -390,6 +458,8 @@ xfs_da3_node_read_mapped(
error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, mappedbno,
XFS_FSB_TO_BB(mp, xfs_dabuf_nfsb(mp, whichfork)), 0,
bpp, &xfs_da3_node_buf_ops);
+ if (xfs_metadata_is_sick(error))
+ xfs_dirattr_mark_sick(dp, whichfork);
if (error || !*bpp)
return error;
@@ -400,7 +470,26 @@ xfs_da3_node_read_mapped(
if (!tp)
return 0;
- return xfs_da3_node_set_type(tp, *bpp);
+ return xfs_da3_node_set_type(tp, dp, whichfork, *bpp);
+}
+
+/*
+ * Copy src directory/attr leaf/node buffer to the dst.
+ * For v5 file systems make sure the right blkno is stamped in.
+ */
+void
+xfs_da_buf_copy(
+ struct xfs_buf *dst,
+ struct xfs_buf *src,
+ size_t size)
+{
+ struct xfs_da3_blkinfo *da3 = dst->b_addr;
+
+ memcpy(dst->b_addr, src->b_addr, size);
+ dst->b_ops = src->b_ops;
+ xfs_trans_buf_copy_type(dst, src);
+ if (xfs_has_crc(dst->b_mount))
+ da3->blkno = cpu_to_be64(xfs_buf_daddr(dst));
}
/*========================================================================
@@ -436,13 +525,13 @@ xfs_da3_node_create(
xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
node = bp->b_addr;
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (xfs_has_crc(mp)) {
struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
memset(hdr3, 0, sizeof(struct xfs_da3_node_hdr));
ichdr.magic = XFS_DA3_NODE_MAGIC;
- hdr3->info.blkno = cpu_to_be64(bp->b_bn);
- hdr3->info.owner = cpu_to_be64(args->dp->i_ino);
+ hdr3->info.blkno = cpu_to_be64(xfs_buf_daddr(bp));
+ hdr3->info.owner = cpu_to_be64(args->owner);
uuid_copy(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid);
} else {
ichdr.magic = XFS_DA_NODE_MAGIC;
@@ -476,6 +565,9 @@ xfs_da3_split(
trace_xfs_da_split(state->args);
+ if (XFS_TEST_ERROR(state->mp, XFS_ERRTAG_DA_LEAF_SPLIT))
+ return -EIO;
+
/*
* Walk back up the tree splitting/inserting/adjusting as necessary.
* If we need to insert and there isn't room, split the node, then
@@ -501,9 +593,8 @@ xfs_da3_split(
switch (oldblk->magic) {
case XFS_ATTR_LEAF_MAGIC:
error = xfs_attr3_leaf_split(state, oldblk, newblk);
- if ((error != 0) && (error != -ENOSPC)) {
+ if (error < 0)
return error; /* GROT: attr is inconsistent */
- }
if (!error) {
addblk = newblk;
break;
@@ -525,6 +616,8 @@ xfs_da3_split(
error = xfs_attr3_leaf_split(state, newblk,
&state->extrablk);
}
+ if (error == 1)
+ return -ENOSPC;
if (error)
return error; /* GROT: attr inconsistent */
addblk = newblk;
@@ -591,6 +684,7 @@ xfs_da3_split(
if (node->hdr.info.forw) {
if (be32_to_cpu(node->hdr.info.forw) != addblk->blkno) {
xfs_buf_mark_corrupt(oldblk->bp);
+ xfs_da_mark_sick(state->args);
error = -EFSCORRUPTED;
goto out;
}
@@ -604,6 +698,7 @@ xfs_da3_split(
if (node->hdr.info.back) {
if (be32_to_cpu(node->hdr.info.back) != addblk->blkno) {
xfs_buf_mark_corrupt(oldblk->bp);
+ xfs_da_mark_sick(state->args);
error = -EFSCORRUPTED;
goto out;
}
@@ -669,12 +764,6 @@ xfs_da3_root_split(
btree = icnodehdr.btree;
size = (int)((char *)&btree[icnodehdr.count] - (char *)oldroot);
level = icnodehdr.level;
-
- /*
- * we are about to copy oldroot to bp, so set up the type
- * of bp while we know exactly what it will be.
- */
- xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
} else {
struct xfs_dir3_icleaf_hdr leafhdr;
@@ -686,31 +775,17 @@ xfs_da3_root_split(
size = (int)((char *)&leafhdr.ents[leafhdr.count] -
(char *)leaf);
level = 0;
-
- /*
- * we are about to copy oldroot to bp, so set up the type
- * of bp while we know exactly what it will be.
- */
- xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAFN_BUF);
}
/*
- * we can copy most of the information in the node from one block to
- * another, but for CRC enabled headers we have to make sure that the
- * block specific identifiers are kept intact. We update the buffer
- * directly for this.
+ * Copy old root to new buffer and log it.
*/
- memcpy(node, oldroot, size);
- if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC) ||
- oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
- struct xfs_da3_intnode *node3 = (struct xfs_da3_intnode *)node;
-
- node3->hdr.info.blkno = cpu_to_be64(bp->b_bn);
- }
+ xfs_da_buf_copy(bp, blk1->bp, size);
xfs_trans_log_buf(tp, bp, 0, size - 1);
- bp->b_ops = blk1->bp->b_ops;
- xfs_trans_buf_copy_type(bp, blk1->bp);
+ /*
+ * Update blk1 to point to new buffer.
+ */
blk1->bp = bp;
blk1->blkno = blkno;
@@ -858,7 +933,6 @@ xfs_da3_node_rebalance(
{
struct xfs_da_intnode *node1;
struct xfs_da_intnode *node2;
- struct xfs_da_intnode *tmpnode;
struct xfs_da_node_entry *btree1;
struct xfs_da_node_entry *btree2;
struct xfs_da_node_entry *btree_s;
@@ -888,9 +962,7 @@ xfs_da3_node_rebalance(
((be32_to_cpu(btree2[0].hashval) < be32_to_cpu(btree1[0].hashval)) ||
(be32_to_cpu(btree2[nodehdr2.count - 1].hashval) <
be32_to_cpu(btree1[nodehdr1.count - 1].hashval)))) {
- tmpnode = node1;
- node1 = node2;
- node2 = tmpnode;
+ swap(node1, node2);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr1, node1);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr2, node2);
btree1 = nodehdr1.btree;
@@ -1173,6 +1245,7 @@ xfs_da3_root_join(
struct xfs_da3_icnode_hdr oldroothdr;
int error;
struct xfs_inode *dp = state->args->dp;
+ xfs_failaddr_t fa;
trace_xfs_da_root_join(state->args);
@@ -1199,24 +1272,24 @@ xfs_da3_root_join(
error = xfs_da3_node_read(args->trans, dp, child, &bp, args->whichfork);
if (error)
return error;
+ fa = xfs_da3_header_check(bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(args->trans, bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
xfs_da_blkinfo_onlychild_validate(bp->b_addr, oldroothdr.level);
/*
- * This could be copying a leaf back into the root block in the case of
- * there only being a single leaf block left in the tree. Hence we have
- * to update the b_ops pointer as well to match the buffer type change
- * that could occur. For dir3 blocks we also need to update the block
- * number in the buffer header.
+ * Copy child to root buffer and log it.
*/
- memcpy(root_blk->bp->b_addr, bp->b_addr, args->geo->blksize);
- root_blk->bp->b_ops = bp->b_ops;
- xfs_trans_buf_copy_type(root_blk->bp, bp);
- if (oldroothdr.magic == XFS_DA3_NODE_MAGIC) {
- struct xfs_da3_blkinfo *da3 = root_blk->bp->b_addr;
- da3->blkno = cpu_to_be64(root_blk->bp->b_bn);
- }
+ xfs_da_buf_copy(root_blk->bp, bp, args->geo->blksize);
xfs_trans_log_buf(args->trans, root_blk->bp, 0,
args->geo->blksize - 1);
+ /*
+ * Now we can drop the child buffer.
+ */
error = xfs_da_shrink_inode(args, child, bp);
return error;
}
@@ -1240,6 +1313,7 @@ xfs_da3_node_toosmall(
struct xfs_da_blkinfo *info;
xfs_dablk_t blkno;
struct xfs_buf *bp;
+ xfs_failaddr_t fa;
struct xfs_da3_icnode_hdr nodehdr;
int count;
int forward;
@@ -1314,6 +1388,13 @@ xfs_da3_node_toosmall(
state->args->whichfork);
if (error)
return error;
+ fa = xfs_da3_node_header_check(bp, state->args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(state->args->trans, bp);
+ xfs_da_mark_sick(state->args);
+ return -EFSCORRUPTED;
+ }
node = bp->b_addr;
xfs_da3_node_hdr_from_disk(dp->i_mount, &thdr, node);
@@ -1572,6 +1653,7 @@ xfs_da3_node_lookup_int(
struct xfs_da_node_entry *btree;
struct xfs_da3_icnode_hdr nodehdr;
struct xfs_da_args *args;
+ xfs_failaddr_t fa;
xfs_dablk_t blkno;
xfs_dahash_t hashval;
xfs_dahash_t btreehashval;
@@ -1610,6 +1692,12 @@ xfs_da3_node_lookup_int(
if (magic == XFS_ATTR_LEAF_MAGIC ||
magic == XFS_ATTR3_LEAF_MAGIC) {
+ fa = xfs_attr3_leaf_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
blk->magic = XFS_ATTR_LEAF_MAGIC;
blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
break;
@@ -1617,6 +1705,12 @@ xfs_da3_node_lookup_int(
if (magic == XFS_DIR2_LEAFN_MAGIC ||
magic == XFS_DIR3_LEAFN_MAGIC) {
+ fa = xfs_dir3_leaf_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
blk->magic = XFS_DIR2_LEAFN_MAGIC;
blk->hashval = xfs_dir2_leaf_lasthash(args->dp,
blk->bp, NULL);
@@ -1625,6 +1719,14 @@ xfs_da3_node_lookup_int(
if (magic != XFS_DA_NODE_MAGIC && magic != XFS_DA3_NODE_MAGIC) {
xfs_buf_mark_corrupt(blk->bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
+
+ fa = xfs_da3_node_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
}
@@ -1640,6 +1742,7 @@ xfs_da3_node_lookup_int(
/* Tree taller than we can handle; bail out! */
if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH) {
xfs_buf_mark_corrupt(blk->bp);
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
}
@@ -1648,6 +1751,7 @@ xfs_da3_node_lookup_int(
expected_level = nodehdr.level - 1;
else if (expected_level != nodehdr.level) {
xfs_buf_mark_corrupt(blk->bp);
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
} else
expected_level--;
@@ -1699,12 +1803,16 @@ xfs_da3_node_lookup_int(
}
/* We can't point back to the root. */
- if (XFS_IS_CORRUPT(dp->i_mount, blkno == args->geo->leafblk))
+ if (XFS_IS_CORRUPT(dp->i_mount, blkno == args->geo->leafblk)) {
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
+ }
}
- if (XFS_IS_CORRUPT(dp->i_mount, expected_level != 0))
+ if (XFS_IS_CORRUPT(dp->i_mount, expected_level != 0)) {
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
+ }
/*
* A leaf block that ends in the hashval that we are interested in
@@ -1722,6 +1830,7 @@ xfs_da3_node_lookup_int(
args->blkno = blk->blkno;
} else {
ASSERT(0);
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
}
if (((retval == -ENOENT) || (retval == -ENOATTR)) &&
@@ -1793,6 +1902,7 @@ xfs_da3_blk_link(
struct xfs_da_blkinfo *tmp_info;
struct xfs_da_args *args;
struct xfs_buf *bp;
+ xfs_failaddr_t fa;
int before = 0;
int error;
struct xfs_inode *dp = state->args->dp;
@@ -1836,6 +1946,13 @@ xfs_da3_blk_link(
&bp, args->whichfork);
if (error)
return error;
+ fa = xfs_da3_header_check(bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(args->trans, bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == old_info->magic);
@@ -1857,6 +1974,13 @@ xfs_da3_blk_link(
&bp, args->whichfork);
if (error)
return error;
+ fa = xfs_da3_header_check(bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(args->trans, bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == old_info->magic);
@@ -1886,6 +2010,7 @@ xfs_da3_blk_unlink(
struct xfs_da_blkinfo *tmp_info;
struct xfs_da_args *args;
struct xfs_buf *bp;
+ xfs_failaddr_t fa;
int error;
/*
@@ -1916,6 +2041,13 @@ xfs_da3_blk_unlink(
&bp, args->whichfork);
if (error)
return error;
+ fa = xfs_da3_header_check(bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(args->trans, bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == save_info->magic);
@@ -1933,6 +2065,13 @@ xfs_da3_blk_unlink(
&bp, args->whichfork);
if (error)
return error;
+ fa = xfs_da3_header_check(bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(bp, fa);
+ xfs_trans_brelse(args->trans, bp);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == save_info->magic);
@@ -1969,6 +2108,7 @@ xfs_da3_path_shift(
struct xfs_da_node_entry *btree;
struct xfs_da3_icnode_hdr nodehdr;
struct xfs_buf *bp;
+ xfs_failaddr_t fa;
xfs_dablk_t blkno = 0;
int level;
int error;
@@ -2047,6 +2187,12 @@ xfs_da3_path_shift(
switch (be16_to_cpu(info->magic)) {
case XFS_DA_NODE_MAGIC:
case XFS_DA3_NODE_MAGIC:
+ fa = xfs_da3_node_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
blk->magic = XFS_DA_NODE_MAGIC;
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr,
bp->b_addr);
@@ -2060,6 +2206,12 @@ xfs_da3_path_shift(
break;
case XFS_ATTR_LEAF_MAGIC:
case XFS_ATTR3_LEAF_MAGIC:
+ fa = xfs_attr3_leaf_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
blk->magic = XFS_ATTR_LEAF_MAGIC;
ASSERT(level == path->active-1);
blk->index = 0;
@@ -2067,6 +2219,12 @@ xfs_da3_path_shift(
break;
case XFS_DIR2_LEAFN_MAGIC:
case XFS_DIR3_LEAFN_MAGIC:
+ fa = xfs_dir3_leaf_header_check(blk->bp, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(blk->bp, fa);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
blk->magic = XFS_DIR2_LEAFN_MAGIC;
ASSERT(level == path->active-1);
blk->index = 0;
@@ -2139,9 +2297,9 @@ xfs_da_grow_inode_int(
struct xfs_trans *tp = args->trans;
struct xfs_inode *dp = args->dp;
int w = args->whichfork;
- xfs_rfsblock_t nblks = dp->i_d.di_nblocks;
- struct xfs_bmbt_irec map, *mapp;
- int nmap, error, got, i, mapi;
+ xfs_rfsblock_t nblks = dp->i_nblocks;
+ struct xfs_bmbt_irec map, *mapp = &map;
+ int nmap, error, got, i, mapi = 1;
/*
* Find a spot in the file space to put the new block.
@@ -2157,14 +2315,7 @@ xfs_da_grow_inode_int(
error = xfs_bmapi_write(tp, dp, *bno, count,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG,
args->total, &map, &nmap);
- if (error)
- return error;
-
- ASSERT(nmap <= 1);
- if (nmap == 1) {
- mapp = &map;
- mapi = 1;
- } else if (nmap == 0 && count > 1) {
+ if (error == -ENOSPC && count > 1) {
xfs_fileoff_t b;
int c;
@@ -2172,25 +2323,23 @@ xfs_da_grow_inode_int(
* If we didn't get it and the block might work if fragmented,
* try without the CONTIG flag. Loop until we get it all.
*/
- mapp = kmem_alloc(sizeof(*mapp) * count, 0);
+ mapp = kmalloc(sizeof(*mapp) * count,
+ GFP_KERNEL | __GFP_NOFAIL);
for (b = *bno, mapi = 0; b < *bno + count; ) {
- nmap = min(XFS_BMAP_MAX_NMAP, count);
c = (int)(*bno + count - b);
+ nmap = min(XFS_BMAP_MAX_NMAP, c);
error = xfs_bmapi_write(tp, dp, b, c,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
args->total, &mapp[mapi], &nmap);
if (error)
goto out_free_map;
- if (nmap < 1)
- break;
mapi += nmap;
b = mapp[mapi - 1].br_startoff +
mapp[mapi - 1].br_blockcount;
}
- } else {
- mapi = 0;
- mapp = NULL;
}
+ if (error)
+ goto out_free_map;
/*
* Count the blocks we got, make sure it matches the total.
@@ -2205,11 +2354,11 @@ xfs_da_grow_inode_int(
}
/* account for newly allocated blocks in reserved blocks total */
- args->total -= dp->i_d.di_nblocks - nblks;
+ args->total -= dp->i_nblocks - nblks;
out_free_map:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2262,6 +2411,7 @@ xfs_da3_swap_lastblock(
struct xfs_buf *last_buf;
struct xfs_buf *sib_buf;
struct xfs_buf *par_buf;
+ xfs_failaddr_t fa;
xfs_dahash_t dead_hash;
xfs_fileoff_t lastoff;
xfs_dablk_t dead_blkno;
@@ -2287,8 +2437,10 @@ xfs_da3_swap_lastblock(
error = xfs_bmap_last_before(tp, dp, &lastoff, w);
if (error)
return error;
- if (XFS_IS_CORRUPT(mp, lastoff == 0))
+ if (XFS_IS_CORRUPT(mp, lastoff == 0)) {
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
+ }
/*
* Read the last block in the btree space.
*/
@@ -2296,12 +2448,21 @@ xfs_da3_swap_lastblock(
error = xfs_da3_node_read(tp, dp, last_blkno, &last_buf, w);
if (error)
return error;
+ fa = xfs_da3_header_check(last_buf, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(last_buf, fa);
+ xfs_trans_brelse(tp, last_buf);
+ xfs_da_mark_sick(args);
+ return -EFSCORRUPTED;
+ }
+
/*
* Copy the last block into the dead buffer and log it.
*/
- memcpy(dead_buf->b_addr, last_buf->b_addr, args->geo->blksize);
+ xfs_da_buf_copy(dead_buf, last_buf, args->geo->blksize);
xfs_trans_log_buf(tp, dead_buf, 0, args->geo->blksize - 1);
dead_info = dead_buf->b_addr;
+
/*
* Get values from the moved block.
*/
@@ -2333,10 +2494,18 @@ xfs_da3_swap_lastblock(
error = xfs_da3_node_read(tp, dp, sib_blkno, &sib_buf, w);
if (error)
goto done;
+ fa = xfs_da3_header_check(sib_buf, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(sib_buf, fa);
+ xfs_da_mark_sick(args);
+ error = -EFSCORRUPTED;
+ goto done;
+ }
sib_info = sib_buf->b_addr;
if (XFS_IS_CORRUPT(mp,
be32_to_cpu(sib_info->forw) != last_blkno ||
sib_info->magic != dead_info->magic)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2353,10 +2522,18 @@ xfs_da3_swap_lastblock(
error = xfs_da3_node_read(tp, dp, sib_blkno, &sib_buf, w);
if (error)
goto done;
+ fa = xfs_da3_header_check(sib_buf, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(sib_buf, fa);
+ xfs_da_mark_sick(args);
+ error = -EFSCORRUPTED;
+ goto done;
+ }
sib_info = sib_buf->b_addr;
if (XFS_IS_CORRUPT(mp,
be32_to_cpu(sib_info->back) != last_blkno ||
sib_info->magic != dead_info->magic)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2375,10 +2552,18 @@ xfs_da3_swap_lastblock(
error = xfs_da3_node_read(tp, dp, par_blkno, &par_buf, w);
if (error)
goto done;
+ fa = xfs_da3_node_header_check(par_buf, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(par_buf, fa);
+ xfs_da_mark_sick(args);
+ error = -EFSCORRUPTED;
+ goto done;
+ }
par_node = par_buf->b_addr;
xfs_da3_node_hdr_from_disk(dp->i_mount, &par_hdr, par_node);
if (XFS_IS_CORRUPT(mp,
level >= 0 && level != par_hdr.level + 1)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2390,6 +2575,7 @@ xfs_da3_swap_lastblock(
entno++)
continue;
if (XFS_IS_CORRUPT(mp, entno == par_hdr.count)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2415,15 +2601,24 @@ xfs_da3_swap_lastblock(
xfs_trans_brelse(tp, par_buf);
par_buf = NULL;
if (XFS_IS_CORRUPT(mp, par_blkno == 0)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
error = xfs_da3_node_read(tp, dp, par_blkno, &par_buf, w);
if (error)
goto done;
+ fa = xfs_da3_node_header_check(par_buf, args->owner);
+ if (fa) {
+ __xfs_buf_mark_corrupt(par_buf, fa);
+ xfs_da_mark_sick(args);
+ error = -EFSCORRUPTED;
+ goto done;
+ }
par_node = par_buf->b_addr;
xfs_da3_node_hdr_from_disk(dp->i_mount, &par_hdr, par_node);
if (XFS_IS_CORRUPT(mp, par_hdr.level != level)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2507,7 +2702,8 @@ xfs_dabuf_map(
int error = 0, nirecs, i;
if (nfsb > 1)
- irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_NOFS);
+ irecs = kzalloc(sizeof(irec) * nfsb,
+ GFP_KERNEL | __GFP_NOLOCKDEP | __GFP_NOFAIL);
nirecs = nfsb;
error = xfs_bmapi_read(dp, bno, nfsb, irecs, &nirecs,
@@ -2520,7 +2716,8 @@ xfs_dabuf_map(
* larger one that needs to be free by the caller.
*/
if (nirecs > 1) {
- map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map), KM_NOFS);
+ map = kzalloc(nirecs * sizeof(struct xfs_buf_map),
+ GFP_KERNEL | __GFP_NOLOCKDEP | __GFP_NOFAIL);
if (!map) {
error = -ENOMEM;
goto out_free_irecs;
@@ -2546,12 +2743,13 @@ xfs_dabuf_map(
*nmaps = nirecs;
out_free_irecs:
if (irecs != &irec)
- kmem_free(irecs);
+ kfree(irecs);
return error;
invalid_mapping:
/* Caller ok with no mapping. */
if (XFS_IS_CORRUPT(mp, !(flags & XFS_DABUF_MAP_HOLE_OK))) {
+ xfs_dirattr_mark_sick(dp, whichfork);
error = -EFSCORRUPTED;
if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
xfs_alert(mp, "%s: bno %u inode %llu",
@@ -2602,7 +2800,7 @@ xfs_da_get_buf(
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2633,6 +2831,14 @@ xfs_da_read_buf(
error = xfs_trans_read_buf_map(mp, tp, mp->m_ddev_targp, mapp, nmap, 0,
&bp, ops);
+ if (xfs_metadata_is_sick(error))
+ xfs_dirattr_mark_sick(dp, whichfork);
+ /*
+ * ENODATA from disk implies a disk medium failure; ENODATA for
+ * xattrs means attribute not found, so disambiguate that here.
+ */
+ if (error == -ENODATA && whichfork == XFS_ATTR_FORK)
+ error = -EIO;
if (error)
goto out_free;
@@ -2643,7 +2849,7 @@ xfs_da_read_buf(
*bpp = bp;
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2674,7 +2880,7 @@ xfs_da_reada_buf(
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
generated by cgit (git 2.34.1) at 2025-12-25 16:21:24 +0000