aboutsummaryrefslogtreecommitdiff
path: root/fs/xfs/libxfs/xfs_da_btree.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/libxfs/xfs_da_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.c128
1 files changed, 76 insertions, 52 deletions
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index e576560b46e9..718d071bb21a 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -23,6 +23,7 @@
#include "xfs_buf_item.h"
#include "xfs_log.h"
#include "xfs_errortag.h"
+#include "xfs_health.h"
/*
* xfs_da_btree.c
@@ -85,7 +86,8 @@ xfs_da_state_alloc(
{
struct xfs_da_state *state;
- state = kmem_cache_zalloc(xfs_da_state_cache, GFP_NOFS | __GFP_NOFAIL);
+ 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;
@@ -352,6 +354,8 @@ 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;
@@ -373,6 +377,7 @@ 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;
}
}
@@ -391,7 +396,7 @@ 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
@@ -408,6 +413,8 @@ 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;
@@ -418,7 +425,26 @@ 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));
}
/*========================================================================
@@ -612,6 +638,7 @@ 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;
}
@@ -625,6 +652,7 @@ 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;
}
@@ -690,12 +718,6 @@ 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;
@@ -707,31 +729,17 @@ 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(xfs_buf_daddr(bp));
- }
+ 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;
@@ -1220,21 +1228,14 @@ xfs_da3_root_join(
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(xfs_buf_daddr(root_blk->bp));
- }
+ 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;
}
@@ -1643,6 +1644,7 @@ 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;
}
@@ -1658,6 +1660,7 @@ 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;
}
@@ -1666,6 +1669,7 @@ 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--;
@@ -1717,12 +1721,16 @@ 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
@@ -1740,6 +1748,7 @@ xfs_da3_node_lookup_int(
args->blkno = blk->blkno;
} else {
ASSERT(0);
+ xfs_da_mark_sick(args);
return -EFSCORRUPTED;
}
if (((retval == -ENOENT) || (retval == -ENOATTR)) &&
@@ -2190,7 +2199,8 @@ 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; ) {
c = (int)(*bno + count - b);
nmap = min(XFS_BMAP_MAX_NMAP, c);
@@ -2227,7 +2237,7 @@ xfs_da_grow_inode_int(
out_free_map:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2305,8 +2315,10 @@ 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.
*/
@@ -2317,9 +2329,10 @@ xfs_da3_swap_lastblock(
/*
* 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.
*/
@@ -2355,6 +2368,7 @@ xfs_da3_swap_lastblock(
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;
}
@@ -2375,6 +2389,7 @@ xfs_da3_swap_lastblock(
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;
}
@@ -2397,6 +2412,7 @@ xfs_da3_swap_lastblock(
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;
}
@@ -2408,6 +2424,7 @@ xfs_da3_swap_lastblock(
entno++)
continue;
if (XFS_IS_CORRUPT(mp, entno == par_hdr.count)) {
+ xfs_da_mark_sick(args);
error = -EFSCORRUPTED;
goto done;
}
@@ -2433,6 +2450,7 @@ 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;
}
@@ -2442,6 +2460,7 @@ xfs_da3_swap_lastblock(
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;
}
@@ -2525,7 +2544,8 @@ 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,
@@ -2538,7 +2558,8 @@ 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;
@@ -2564,12 +2585,13 @@ 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",
@@ -2620,7 +2642,7 @@ xfs_da_get_buf(
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2651,6 +2673,8 @@ 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);
if (error)
goto out_free;
@@ -2661,7 +2685,7 @@ xfs_da_read_buf(
*bpp = bp;
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
@@ -2692,7 +2716,7 @@ xfs_da_reada_buf(
out_free:
if (mapp != &map)
- kmem_free(mapp);
+ kfree(mapp);
return error;
}
Powered by cgit, Gruvboxed by Blaster4385.