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| author | Tianyu Lan <tiala@microsoft.com> | 2022-07-21 23:38:46 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-07-22 17:20:56 +0200 |
| commit | 72311809031217714e635b24f8478e6ecb0d93d9 (patch) | |
| tree | 16ba453bcd936f8d97d6f66c3469fb99a3a1581b /Documentation/admin-guide/kernel-parameters.txt | |
| parent | a45e52bf1eca9bf8a7d075ce12b1e306497ce393 (diff) | |
| download | linux-72311809031217714e635b24f8478e6ecb0d93d9.tar.bz2 | |
swiotlb: clean up some coding style and minor issues
- Fix the used field of struct io_tlb_area wasn't initialized
- Set area number to be 0 if input area number parameter is 0
- Use array_size() to calculate io_tlb_area array size
- Make parameters of swiotlb_do_find_slots() more reasonable
Fixes: 26ffb91fa5e0 ("swiotlb: split up the global swiotlb lock")
Signed-off-by: Tianyu Lan <tiala@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 4a6ad177d4b8..ddca09550f76 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5907,7 +5907,8 @@ Format: { <int> [,<int>] | force | noforce } <int> -- Number of I/O TLB slabs <int> -- Second integer after comma. Number of swiotlb - areas with their own lock. Must be power of 2. + areas with their own lock. Will be rounded up + to a power of 2. force -- force using of bounce buffers even if they wouldn't be automatically used by the kernel noforce -- Never use bounce buffers (for debugging) |