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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2007-08-30 23:56:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-08-31 01:42:22 -0700 |
| commit | 989f89c57e6361e7d16fbd9572b5da7d313b073d (patch) | |
| tree | cd5f655709e1515568c1e1f309f169723ce3b084 /ipc | |
| parent | d1254b12c93e1e586137a2ffef71fd33cf273f35 (diff) | |
| download | linux-989f89c57e6361e7d16fbd9572b5da7d313b073d.tar.gz linux-989f89c57e6361e7d16fbd9572b5da7d313b073d.tar.bz2 linux-989f89c57e6361e7d16fbd9572b5da7d313b073d.zip | |
fix rcu_read_lock() in page migraton
In migration fallback path, write_page() or lock_page() will be called.
This causes sleep with holding rcu_read_lock().
For avoding that, just do rcu_lock if the page is Anon.(this is enough.)
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions