Miklos Szeredi 1dc1eed46f ovl: fix IOCB_DIRECT if underlying fs doesn't support direct IO ...

Normally the check at open time suffices, but e.g loop device does set
IOCB_DIRECT after doing its own checks (which are not sufficent for
overlayfs).

Make sure we don't call the underlying filesystem read/write method with
the IOCB_DIRECT if it's not supported.

Reported-by: Huang Jianan <huangjianan@oppo.com>
Fixes: 16914e6fc7e1 ("ovl: add ovl_read_iter()")
Cc: <stable@vger.kernel.org> # v4.19
Tested-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

2021-09-28 09:16:12 +02:00

..

copy_up.c

ovl: use kvalloc in xattr copy-up

2021-08-17 11:47:45 +02:00

dir.c

ovl: fix missing negative dentry check in ovl_rename()

2021-09-24 21:00:31 +02:00

export.c

ovl: fix uninitialized pointer read in ovl_lookup_real_one()

2021-08-10 10:21:30 +02:00

file.c

ovl: fix IOCB_DIRECT if underlying fs doesn't support direct IO

2021-09-28 09:16:12 +02:00

inode.c

ovl: enable RCU'd ->get_acl()

2021-08-18 22:08:24 +02:00

Kconfig

docs: fix broken references to text files

2020-04-20 15:35:59 -06:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

namei.c

ovl: relax lookup error on mismatch origin ftype

2021-08-17 11:47:44 +02:00

overlayfs.h

vfs: add rcu argument to ->get_acl() callback

2021-08-18 22:08:24 +02:00

ovl_entry.h

ovl: implement volatile-specific fsync error behaviour

2021-01-28 10:22:48 +01:00

readdir.c

ovl: skip stale entries in merge dir cache iteration

2021-08-10 10:21:30 +02:00

super.c

ovl: add ovl_allow_offline_changes() helper

2021-08-17 11:47:44 +02:00

util.c

ovl: consistent behavior for immutable/append-only inodes

2021-08-17 11:47:43 +02:00