diff options
Diffstat (limited to 'mm/swap.c')
-rw-r--r-- | mm/swap.c | 37 |
1 files changed, 12 insertions, 25 deletions
@@ -132,34 +132,21 @@ static void pagevec_move_tail(struct pagevec *pvec) | |||
132 | * Writeback is about to end against a page which has been marked for immediate | 132 | * Writeback is about to end against a page which has been marked for immediate |
133 | * reclaim. If it still appears to be reclaimable, move it to the tail of the | 133 | * reclaim. If it still appears to be reclaimable, move it to the tail of the |
134 | * inactive list. | 134 | * inactive list. |
135 | * | ||
136 | * Returns zero if it cleared PG_writeback. | ||
137 | */ | 135 | */ |
138 | int rotate_reclaimable_page(struct page *page) | 136 | void rotate_reclaimable_page(struct page *page) |
139 | { | 137 | { |
140 | struct pagevec *pvec; | 138 | if (!PageLocked(page) && !PageDirty(page) && !PageActive(page) && |
141 | unsigned long flags; | 139 | PageLRU(page)) { |
142 | 140 | struct pagevec *pvec; | |
143 | if (PageLocked(page)) | 141 | unsigned long flags; |
144 | return 1; | ||
145 | if (PageDirty(page)) | ||
146 | return 1; | ||
147 | if (PageActive(page)) | ||
148 | return 1; | ||
149 | if (!PageLRU(page)) | ||
150 | return 1; | ||
151 | |||
152 | page_cache_get(page); | ||
153 | local_irq_save(flags); | ||
154 | pvec = &__get_cpu_var(lru_rotate_pvecs); | ||
155 | if (!pagevec_add(pvec, page)) | ||
156 | pagevec_move_tail(pvec); | ||
157 | local_irq_restore(flags); | ||
158 | |||
159 | if (!test_clear_page_writeback(page)) | ||
160 | BUG(); | ||
161 | 142 | ||
162 | return 0; | 143 | page_cache_get(page); |
144 | local_irq_save(flags); | ||
145 | pvec = &__get_cpu_var(lru_rotate_pvecs); | ||
146 | if (!pagevec_add(pvec, page)) | ||
147 | pagevec_move_tail(pvec); | ||
148 | local_irq_restore(flags); | ||
149 | } | ||
163 | } | 150 | } |
164 | 151 | ||
165 | /* | 152 | /* |