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| author | Christoph Hellwig <[email protected]> | 2021-05-14 13:18:41 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-05-20 13:59:35 +0000 |
| commit | 6c60ff048ca1e0739f39aa25996543c6e662a46c (patch) | |
| tree | 2cbd9f0a9f9c0e49600c999500d7c388e6c8ec4e /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | Merge tag 'nvme-5.13-2021-05-20' of git://git.infradead.org/nvme into block-5.13 (diff) | |
| download | kernel-6c60ff048ca1e0739f39aa25996543c6e662a46c.tar.gz kernel-6c60ff048ca1e0739f39aa25996543c6e662a46c.zip | |
block: prevent block device lookups at the beginning of del_gendisk
As an artifact of how gendisk lookup used to work in earlier kernels,
GENHD_FL_UP is only cleared very late in del_gendisk, and a global lock
is used to prevent opens from succeeding while del_gendisk is tearing
down the gendisk. Switch to clearing the flag early and under bd_mutex
so that callers can use bd_mutex to stabilize the flag, which removes
the need for the global mutex.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Ming Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions