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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-07-24 19:54:02 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 10:12:51 -0700 |
| commit | 350f6bbca1de515cd7519a33661cefc93ea06054 (patch) | |
| tree | 097b836f7ea8c5145eae8c2c37dcee42591d148a /include/linux/net_mm.h | |
| parent | 284e05920498788c5df1a7dd6424adb426498e1c (diff) | |
| download | linux-350f6bbca1de515cd7519a33661cefc93ea06054.tar.gz linux-350f6bbca1de515cd7519a33661cefc93ea06054.tar.bz2 linux-350f6bbca1de515cd7519a33661cefc93ea06054.zip | |
mm: allow per-VMA locks on file-backed VMAs
Remove the TCP layering violation by allowing per-VMA locks on all VMAs.
The fault path will immediately fail in handle_mm_fault(). There may be a
small performance reduction from this patch as a little unnecessary work
will be done on each page fault. See later patches for the improvement.
Link: https://lkml.kernel.org/r/20230724185410.1124082-3-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 'include/linux/net_mm.h')
| -rw-r--r-- | include/linux/net_mm.h | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/include/linux/net_mm.h b/include/linux/net_mm.h deleted file mode 100644 index b298998bd5a0..000000000000 --- a/include/linux/net_mm.h +++ /dev/null @@ -1,17 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -#ifdef CONFIG_MMU - -#ifdef CONFIG_INET -extern const struct vm_operations_struct tcp_vm_ops; -static inline bool vma_is_tcp(const struct vm_area_struct *vma) -{ - return vma->vm_ops == &tcp_vm_ops; -} -#else -static inline bool vma_is_tcp(const struct vm_area_struct *vma) -{ - return false; -} -#endif /* CONFIG_INET*/ - -#endif /* CONFIG_MMU */ |