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| author | Hugh Dickins | 2005-10-30 02:16:31 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2005-10-30 05:40:41 +0100 |
| commit | c0718806cf955d5eb51ea77bffb5b21d9bba4972 (patch) | |
| tree | bd29659bbff68604127439ec8144230a40772621 /mm/memory.c | |
| parent | [PATCH] mm: xip_unmap ZERO_PAGE fix (diff) | |
| download | kernel-qcow2-linux-c0718806cf955d5eb51ea77bffb5b21d9bba4972.tar.gz kernel-qcow2-linux-c0718806cf955d5eb51ea77bffb5b21d9bba4972.tar.xz kernel-qcow2-linux-c0718806cf955d5eb51ea77bffb5b21d9bba4972.zip | |
[PATCH] mm: rmap with inner ptlock
rmap's page_check_address descend without page_table_lock. First just
pte_offset_map in case there's no pte present worth locking for, then take
page_table_lock for the full check, and pass ptl back to caller in the same
style as pte_offset_map_lock. __xip_unmap, page_referenced_one and
try_to_unmap_one use pte_unmap_unlock. try_to_unmap_cluster also.
page_check_address reformatted to avoid progressive indentation. No use is
made of its one error code, return NULL when it fails.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/memory.c')
0 files changed, 0 insertions, 0 deletions