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| author |   Mikulas Patocka <mpatocka@redhat.com> | 2022-05-10 13:17:32 -0400 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2022-05-11 19:48:34 +0200 |
| commit | 84bc4f1dbbbb5f8aa68706a96711dccb28b518e5 (patch) | |
| tree | afd9910f391ccf3a04aa03f6fb87becf76af4388 /scripts/generate_rust_analyzer.py | |
| parent | dma-direct: don't fail on highmem CMA pages in dma_direct_alloc_pages (diff) | |
| download | wireguard-linux-84bc4f1dbbbb5f8aa68706a96711dccb28b518e5.tar.xz wireguard-linux-84bc4f1dbbbb5f8aa68706a96711dccb28b518e5.zip | |
dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC
We observed the error "cacheline tracking ENOMEM, dma-debug disabled"
during a light system load (copying some files). The reason for this error
is that the dma_active_cacheline radix tree uses GFP_NOWAIT allocation -
so it can't access the emergency memory reserves and it fails as soon as
anybody reaches the watermark.
This patch changes GFP_NOWAIT to GFP_ATOMIC, so that it can access the
emergency memory reserves.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions