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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-25 11:31:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-25 11:31:48 -0700 |
| commit | a5e0aceabef618e2bb3d96c096002d8326d46a83 (patch) | |
| tree | 7d2d0c2b924c8838f55380c681bb43bddb10550a /fs | |
| parent | b8f4296560e33e4e3cbed17a674d1b6dd23191af (diff) | |
| parent | c40dd3ca2a45d5bd6e8b3f4ace5cb81493096263 (diff) | |
| download | lwn-a5e0aceabef618e2bb3d96c096002d8326d46a83.tar.gz lwn-a5e0aceabef618e2bb3d96c096002d8326d46a83.zip | |
Merge tag 'erofs-for-5.15-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs fixes from Gao Xiang:
"Two bugfixes to fix the 4KiB blockmap chunk format availability and a
dangling pointer usage. There is also a trivial cleanup to clarify
compacted_2b if compacted_4b_initial > totalidx.
Summary:
- fix the dangling pointer use in erofs_lookup tracepoint
- fix unsupported chunk format check
- zero out compacted_2b if compacted_4b_initial > totalidx"
* tag 'erofs-for-5.15-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: clear compacted_2b if compacted_4b_initial > totalidx
erofs: fix misbehavior of unsupported chunk format check
erofs: fix up erofs_lookup tracepoint
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/erofs/inode.c | 2 | ||||
| -rw-r--r-- | fs/erofs/zmap.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index 31ac3a73b390..a552399e211d 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -176,7 +176,7 @@ static struct page *erofs_read_inode(struct inode *inode, } if (vi->datalayout == EROFS_INODE_CHUNK_BASED) { - if (!(vi->chunkformat & EROFS_CHUNK_FORMAT_ALL)) { + if (vi->chunkformat & ~EROFS_CHUNK_FORMAT_ALL) { erofs_err(inode->i_sb, "unsupported chunk format %x of nid %llu", vi->chunkformat, vi->nid); diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c index 9fb98d85a3ce..7a6df35fdc91 100644 --- a/fs/erofs/zmap.c +++ b/fs/erofs/zmap.c @@ -369,7 +369,8 @@ static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m, if (compacted_4b_initial == 32 / 4) compacted_4b_initial = 0; - if (vi->z_advise & Z_EROFS_ADVISE_COMPACTED_2B) + if ((vi->z_advise & Z_EROFS_ADVISE_COMPACTED_2B) && + compacted_4b_initial < totalidx) compacted_2b = rounddown(totalidx - compacted_4b_initial, 16); else compacted_2b = 0; |