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| author | Miklos Szeredi <mszeredi@suse.cz> | 2008-04-28 02:12:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:20 -0700 |
| commit | ac6aadb24b7d4f0e54246732e221c102073412bf (patch) | |
| tree | 1936c3e847fca977b8c0d650416c66655f7633ad /mm/filemap.c | |
| parent | f05111f50105ac479a008cf85749cf9c956453ea (diff) | |
| download | lwn-ac6aadb24b7d4f0e54246732e221c102073412bf.tar.gz lwn-ac6aadb24b7d4f0e54246732e221c102073412bf.zip | |
mm: rotate_reclaimable_page() cleanup
Clean up messy conditional calling of test_clear_page_writeback() from both
rotate_reclaimable_page() and end_page_writeback().
The only user of rotate_reclaimable_page() is end_page_writeback() so this is
OK.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 07e9d9258b48..239d36163bbe 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -576,10 +576,12 @@ EXPORT_SYMBOL(unlock_page); */ void end_page_writeback(struct page *page) { - if (!TestClearPageReclaim(page) || rotate_reclaimable_page(page)) { - if (!test_clear_page_writeback(page)) - BUG(); - } + if (TestClearPageReclaim(page)) + rotate_reclaimable_page(page); + + if (!test_clear_page_writeback(page)) + BUG(); + smp_mb__after_clear_bit(); wake_up_page(page, PG_writeback); } |