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author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-07-24 19:54:03 +0100 |
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committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 10:12:51 -0700 |
commit | 4ec31152a80d83d74d231d964703a721236244ef (patch) | |
tree | c038eef92d6b55069f2a1bd34c8129fae68278e4 /drivers/dma/sh | |
parent | 350f6bbca1de515cd7519a33661cefc93ea06054 (diff) | |
download | lwn-4ec31152a80d83d74d231d964703a721236244ef.tar.gz lwn-4ec31152a80d83d74d231d964703a721236244ef.zip |
mm: move FAULT_FLAG_VMA_LOCK check from handle_mm_fault()
Handle a little more of the page fault path outside the mmap sem. The
hugetlb path doesn't need to check whether the VMA is anonymous; the
VM_HUGETLB flag is only set on hugetlbfs VMAs. There should be no
performance change from the previous commit; this is simply a step to ease
bisection of any problems.
Link: https://lkml.kernel.org/r/20230724185410.1124082-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Punit Agrawal <punit.agrawal@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/dma/sh')
0 files changed, 0 insertions, 0 deletions