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authorKent Overstreet <kent.overstreet@gmail.com>2022-04-16 16:06:59 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2023-03-13 11:34:26 -0400
commit24bbe0a0c855a0c4f4ea2347e49faa1c94cf1cec (patch)
treeafa7770239aaa1b5f4b94ee7954afcec0f700589
parente72c54da1c8cb83af07d7d89e1fe120fe1b48f65 (diff)
bcachefs: Go emergency RO when i_blocks underflows
This improves some of our warnings and assertions - they imply possible filesystem inconsistencies, so they should be calling bch2_fs_inconsistent(). Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
-rw-r--r--fs/bcachefs/fs-io.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/bcachefs/fs-io.c b/fs/bcachefs/fs-io.c
index 8ea788011684..eea46b17726c 100644
--- a/fs/bcachefs/fs-io.c
+++ b/fs/bcachefs/fs-io.c
@@ -231,7 +231,10 @@ static void i_sectors_acct(struct bch_fs *c, struct bch_inode_info *inode,
return;
mutex_lock(&inode->ei_quota_lock);
- BUG_ON((s64) inode->v.i_blocks + sectors < 0);
+ bch2_fs_inconsistent_on((s64) inode->v.i_blocks + sectors < 0, c,
+ "inode %lu i_blocks underflow: %llu + %lli < 0 (ondisk %lli)",
+ inode->v.i_ino, (u64) inode->v.i_blocks, sectors,
+ inode->ei_inode.bi_sectors);
inode->v.i_blocks += sectors;
#ifdef CONFIG_BCACHEFS_QUOTA
@@ -2677,9 +2680,11 @@ int bch2_truncate(struct user_namespace *mnt_userns,
U64_MAX, &i_sectors_delta);
i_sectors_acct(c, inode, NULL, i_sectors_delta);
- WARN_ON(!inode->v.i_size && inode->v.i_blocks &&
- !bch2_journal_error(&c->journal));
-
+ bch2_fs_inconsistent_on(!inode->v.i_size && inode->v.i_blocks &&
+ !bch2_journal_error(&c->journal), c,
+ "inode %lu truncated to 0 but i_blocks %llu (ondisk %lli)",
+ inode->v.i_ino, (u64) inode->v.i_blocks,
+ inode->ei_inode.bi_sectors);
if (unlikely(ret))
goto err;