diff options
| author | Lokesh Gidra <lokeshgidra@google.com> | 2024-02-15 21:27:56 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-23 02:27:20 +0300 |
| commit | 867a43a34ff8a38772212045262b2c9b77807ea3 (patch) | |
| tree | 90ef57890d1a59cd4aa66bbb05d32d781f4651ce /include/uapi | |
| parent | 32af81af2f6f4c23b1b4ff68410e91da660af102 (diff) | |
| download | linux-867a43a34ff8a38772212045262b2c9b77807ea3.tar.xz | |
userfaultfd: use per-vma locks in userfaultfd operations
All userfaultfd operations, except write-protect, opportunistically use
per-vma locks to lock vmas. On failure, attempt again inside mmap_lock
critical section.
Write-protect operation requires mmap_lock as it iterates over multiple
vmas.
Link: https://lkml.kernel.org/r/20240215182756.3448972-5-lokeshgidra@google.com
Signed-off-by: Lokesh Gidra <lokeshgidra@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tim Murray <timmurray@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions