From: Lizhi Xu Date: Tue, 15 Apr 2025 09:26:37 +0000 (+0800) Subject: fs/ntfs3: Add missing direct_IO in ntfs_aops_cmpr X-Git-Tag: v6.16-rc1~140^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8b26c8c376b29cf29710fbfd093df194cefe26ad;p=thirdparty%2Flinux.git fs/ntfs3: Add missing direct_IO in ntfs_aops_cmpr The ntfs3 can use the page cache directly, so its address_space_operations need direct_IO. Exit ntfs_direct_IO() if it is a compressed file. Fixes: b432163ebd15 ("fs/ntfs3: Update inode->i_mapping->a_ops on compression state") Reported-by: syzbot+e36cc3297bd3afd25e19@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=e36cc3297bd3afd25e19 Signed-off-by: Lizhi Xu Signed-off-by: Konstantin Komarov --- diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c index 3e2957a1e3605..0f0d27d4644a9 100644 --- a/fs/ntfs3/inode.c +++ b/fs/ntfs3/inode.c @@ -805,6 +805,10 @@ static ssize_t ntfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) ret = 0; goto out; } + if (is_compressed(ni)) { + ret = 0; + goto out; + } ret = blockdev_direct_IO(iocb, inode, iter, wr ? ntfs_get_block_direct_IO_W : @@ -2068,5 +2072,6 @@ const struct address_space_operations ntfs_aops_cmpr = { .read_folio = ntfs_read_folio, .readahead = ntfs_readahead, .dirty_folio = block_dirty_folio, + .direct_IO = ntfs_direct_IO, }; // clang-format on