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fs/ntfs3: Add missing direct_IO in ntfs_aops_cmpr

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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: b432163ebd ("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 <lizhi.xu@windriver.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Lizhi Xu 2025-04-15 17:26:37 +08:00 committed by Konstantin Komarov
parent af5cab0e5b
commit 8b26c8c376
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GPG Key ID: A9B0331F832407B6
1 changed files with 5 additions and 0 deletions
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5
fs/ntfs3/inode.c
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@ -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