diff options
| author | Hugh Dickins <hugh@veritas.com> | 2005-10-30 02:16:41 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-30 05:40:42 +0100 |
| commit | f412ac08c9861b4791af0145934c22f1458686da (patch) | |
| tree | 5e515efa116f3968c2caa75bc691a197199313a8 /mm/swap_state.c | |
| parent | [PATCH] mm: split page table lock (diff) | |
| download | linux-f412ac08c9861b4791af0145934c22f1458686da.tar.xz linux-f412ac08c9861b4791af0145934c22f1458686da.zip | |
[PATCH] mm: fix rss and mmlist locking
A couple of oddities were guarded by page_table_lock, no longer properly
guarded when that is split.
The mm_counters of file_rss and anon_rss: make those an atomic_t, or an
atomic64_t if the architecture supports it, in such a case. Definitions by
courtesy of Christoph Lameter: who spent considerable effort on more scalable
ways of counting, but found insufficient benefit in practice.
And adding an mm with swap to the mmlist for swapoff: the list is well-
guarded by its own lock, but the list_empty check now has to be repeated
inside it.
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/swap_state.c')
0 files changed, 0 insertions, 0 deletions