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author | Amir Goldstein <amir73il@gmail.com> | 2024-04-07 18:57:57 +0300 |
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committer | Miklos Szeredi <mszeredi@redhat.com> | 2024-04-15 11:12:44 +0300 |
commit | 7cc911262835419fe469ebfae89891c0e97c62ef (patch) | |
tree | 8100455dddb40fbca0bf73b84136088469e4a779 /Documentation/input/devices/cs461x.rst | |
parent | 4864a6dd8320ad856698f93009c89f66ccb1653f (diff) | |
download | linux-7cc911262835419fe469ebfae89891c0e97c62ef.tar.xz |
fuse: fix parallel dio write on file open in passthrough mode
Parallel dio write takes a negative refcount of fi->iocachectr and so does
open of file in passthrough mode.
The refcount of passthrough mode is associated with attach/detach of a
fuse_backing object to fuse inode.
For parallel dio write, the backing file is irrelevant, so the call to
fuse_inode_uncached_io_start() passes a NULL fuse_backing object.
Passing a NULL fuse_backing will result in false -EBUSY error if the file
is already open in passthrough mode.
Allow taking negative fi->iocachectr refcount with NULL fuse_backing,
because it does not conflict with an already attached fuse_backing object.
Fixes: 4a90451bbc7f ("fuse: implement open in passthrough mode")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'Documentation/input/devices/cs461x.rst')
0 files changed, 0 insertions, 0 deletions