| commit | 3e7ee3e7b36fa4e2d88d8fb0a2577be95fc4636d | |
| author | Jens Axboe <axboe@suse.de> | |
| Sun, 2 Apr 2006 21:11:04 +0000 (2 23:11 +0200) | ||
| committer | Jens Axboe <axboe@suse.de> | |
| Sun, 2 Apr 2006 21:11:04 +0000 (2 23:11 +0200) | ||
| tree | 46e972e78122f8a719dafc87572bffb25716e745 | treesnapshot (tar.gz zip) |
| parent | ad8d6f0a783ffa2ff9b0cf09910b889715772201 | commitdiff |
[PATCH] splice: fix page stealing LRU handling.
Originally from Nick Piggin, just adapted to the newer branch.
You can't check PageLRU without holding zone->lru_lock. The page
release code can get away with it only because the page refcount is 0 at
that point. Also, you can't reliably remove pages from the LRU unless
the refcount is 0. Ever.
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Jens Axboe <axboe@suse.de>
Originally from Nick Piggin, just adapted to the newer branch.
You can't check PageLRU without holding zone->lru_lock. The page
release code can get away with it only because the page refcount is 0 at
that point. Also, you can't reliably remove pages from the LRU unless
the refcount is 0. Ever.
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Jens Axboe <axboe@suse.de>
| fs/pipe.c | diffblobblamehistory | |
| fs/splice.c | diffblobblamehistory | |
| include/linux/pipe_fs_i.h | diffblobblamehistory |