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| author | Danny Lin <[email protected]> | 2024-04-14 00:34:31 +0000 |
|---|---|---|
| committer | Miklos Szeredi <[email protected]> | 2024-04-15 08:12:44 +0000 |
| commit | eb4b691b9115fae4c844f5941418335575cf667f (patch) | |
| tree | aa8dadfa942c65ef35d2167268b66d6383e80ddf /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | fuse: fix parallel dio write on file open in passthrough mode (diff) | |
| download | kernel-eb4b691b9115fae4c844f5941418335575cf667f.tar.gz kernel-eb4b691b9115fae4c844f5941418335575cf667f.zip | |
fuse: fix leaked ENOSYS error on first statx call
FUSE attempts to detect server support for statx by trying it once and
setting no_statx=1 if it fails with ENOSYS, but consider the following
scenario:
- Userspace (e.g. sh) calls stat() on a file
* succeeds
- Userspace (e.g. lsd) calls statx(BTIME) on the same file
- request_mask = STATX_BASIC_STATS | STATX_BTIME
- first pass: sync=true due to differing cache_mask
- statx fails and returns ENOSYS
- set no_statx and retry
- retry sets mask = STATX_BASIC_STATS
- now mask == cache_mask; sync=false (time_before: still valid)
- so we take the "else if (stat)" path
- "err" is still ENOSYS from the failed statx call
Fix this by zeroing "err" before retrying the failed call.
Fixes: d3045530bdd2 ("fuse: implement statx")
Cc: [email protected] # v6.6
Signed-off-by: Danny Lin <[email protected]>
Signed-off-by: Miklos Szeredi <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions