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| author | Amir Goldstein <[email protected]> | 2024-04-05 14:56:35 +0000 |
|---|---|---|
| committer | Al Viro <[email protected]> | 2024-04-14 10:55:46 +0000 |
| commit | 16b52bbee4823b01ab7fe3919373c981a38f3797 (patch) | |
| tree | ce7a54dd66475297874f9a14c370bb8a6aabb9c6 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | Linux 6.9-rc3 (diff) | |
| download | kernel-16b52bbee4823b01ab7fe3919373c981a38f3797.tar.gz kernel-16b52bbee4823b01ab7fe3919373c981a38f3797.zip | |
kernfs: annotate different lockdep class for of->mutex of writable files
The writable file /sys/power/resume may call vfs lookup helpers for
arbitrary paths and readonly files can be read by overlayfs from vfs
helpers when sysfs is a lower layer of overalyfs.
To avoid a lockdep warning of circular dependency between overlayfs
inode lock and kernfs of->mutex, use a different lockdep class for
writable and readonly kernfs files.
Reported-by: [email protected]
Fixes: 0fedefd4c4e3 ("kernfs: sysfs: support custom llseek method for sysfs entries")
Suggested-by: Al Viro <[email protected]>
Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Al Viro <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions