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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-06-29 22:14:14 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-01 18:10:56 +0300 |
| commit | e4bd84c069f212c01258e405f86e91f327888e41 (patch) | |
| tree | e58441bf268ac1b4e915567afb01b50f6103bc28 /mm/mremap.c | |
| parent | 03f889378f33aa9a9d8e5f49ba94134cf6158090 (diff) | |
| download | linux-e4bd84c069f212c01258e405f86e91f327888e41.tar.xz | |
mm: Always downgrade mmap_lock if requested
Now that stack growth must always hold the mmap_lock for write, we can
always downgrade the mmap_lock to read and safely unmap pages from the
page table, even if we're next to a stack.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mremap.c')
0 files changed, 0 insertions, 0 deletions