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| author | Jens Axboe <axboe@suse.de> | 2006-05-01 19:50:48 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@suse.de> | 2006-05-01 19:50:48 +0200 |
| commit | 0568b409c74f7a125d92a09a3f386785700ef688 (patch) | |
| tree | 79125b2f4755e98949f0d941a0092e5d3367bbff /fs/drop_caches.c | |
| parent | 46e678c96bbd775abd05d3ddbe2fd334794f9157 (diff) | |
| download | linux-0568b409c74f7a125d92a09a3f386785700ef688.tar.gz linux-0568b409c74f7a125d92a09a3f386785700ef688.tar.bz2 linux-0568b409c74f7a125d92a09a3f386785700ef688.zip | |
[PATCH] splice: fix bugs in pipe_to_file()
Found by Oleg Nesterov <oleg@tv-sign.ru>, fixed by me.
- Only allow full pages to go to the page cache.
- Check page != buf->page instead of using PIPE_BUF_FLAG_STOLEN.
- Remember to clear 'stolen' if add_to_page_cache() fails.
And as a cleanup on that:
- Make the bottom fall-through logic a little less convoluted. Also make
the steal path hold an extra reference to the page, so we don't have
to differentiate between stolen and non-stolen at the end.
Signed-off-by: Jens Axboe <axboe@suse.de>
Diffstat (limited to 'fs/drop_caches.c')
0 files changed, 0 insertions, 0 deletions