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| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-09-27 11:23:57 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-09-28 09:16:12 +0200 |
| commit | 1dc1eed46f9fa4cb8a07baa24fb44c96d6dd35c9 (patch) | |
| tree | bdd3994a59af1aadf9552c99516cd2f6cd994302 /drivers/misc/ibmasm/command.c | |
| parent | a295aef603e109a47af355477326bd41151765b6 (diff) | |
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>
Diffstat (limited to 'drivers/misc/ibmasm/command.c')
0 files changed, 0 insertions, 0 deletions