diff options
-rw-r--r-- | fs/drop_caches.c | 2 | ||||
-rw-r--r-- | include/linux/fs.h | 3 | ||||
-rw-r--r-- | mm/truncate.c | 39 |
3 files changed, 17 insertions, 27 deletions
diff --git a/fs/drop_caches.c b/fs/drop_caches.c index b6a719a909f8..a2edb7913447 100644 --- a/fs/drop_caches.c +++ b/fs/drop_caches.c | |||
@@ -24,7 +24,7 @@ static void drop_pagecache_sb(struct super_block *sb) | |||
24 | continue; | 24 | continue; |
25 | __iget(inode); | 25 | __iget(inode); |
26 | spin_unlock(&inode_lock); | 26 | spin_unlock(&inode_lock); |
27 | __invalidate_mapping_pages(inode->i_mapping, 0, -1, true); | 27 | invalidate_mapping_pages(inode->i_mapping, 0, -1); |
28 | iput(toput_inode); | 28 | iput(toput_inode); |
29 | toput_inode = inode; | 29 | toput_inode = inode; |
30 | spin_lock(&inode_lock); | 30 | spin_lock(&inode_lock); |
diff --git a/include/linux/fs.h b/include/linux/fs.h index 8146e0264ef9..f5ae9f19b8a3 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h | |||
@@ -2036,9 +2036,6 @@ extern int __invalidate_device(struct block_device *); | |||
2036 | extern int invalidate_partition(struct gendisk *, int); | 2036 | extern int invalidate_partition(struct gendisk *, int); |
2037 | #endif | 2037 | #endif |
2038 | extern int invalidate_inodes(struct super_block *); | 2038 | extern int invalidate_inodes(struct super_block *); |
2039 | unsigned long __invalidate_mapping_pages(struct address_space *mapping, | ||
2040 | pgoff_t start, pgoff_t end, | ||
2041 | bool be_atomic); | ||
2042 | unsigned long invalidate_mapping_pages(struct address_space *mapping, | 2039 | unsigned long invalidate_mapping_pages(struct address_space *mapping, |
2043 | pgoff_t start, pgoff_t end); | 2040 | pgoff_t start, pgoff_t end); |
2044 | 2041 | ||
diff --git a/mm/truncate.c b/mm/truncate.c index 12e1579f9165..ccc3ecf7cb98 100644 --- a/mm/truncate.c +++ b/mm/truncate.c | |||
@@ -267,8 +267,21 @@ void truncate_inode_pages(struct address_space *mapping, loff_t lstart) | |||
267 | } | 267 | } |
268 | EXPORT_SYMBOL(truncate_inode_pages); | 268 | EXPORT_SYMBOL(truncate_inode_pages); |
269 | 269 | ||
270 | unsigned long __invalidate_mapping_pages(struct address_space *mapping, | 270 | /** |
271 | pgoff_t start, pgoff_t end, bool be_atomic) | 271 | * invalidate_mapping_pages - Invalidate all the unlocked pages of one inode |
272 | * @mapping: the address_space which holds the pages to invalidate | ||
273 | * @start: the offset 'from' which to invalidate | ||
274 | * @end: the offset 'to' which to invalidate (inclusive) | ||
275 | * | ||
276 | * This function only removes the unlocked pages, if you want to | ||
277 | * remove all the pages of one inode, you must call truncate_inode_pages. | ||
278 | * | ||
279 | * invalidate_mapping_pages() will not block on IO activity. It will not | ||
280 | * invalidate pages which are dirty, locked, under writeback or mapped into | ||
281 | * pagetables. | ||
282 | */ | ||
283 | unsigned long invalidate_mapping_pages(struct address_space *mapping, | ||
284 | pgoff_t start, pgoff_t end) | ||
272 | { | 285 | { |
273 | struct pagevec pvec; | 286 | struct pagevec pvec; |
274 | pgoff_t next = start; | 287 | pgoff_t next = start; |
@@ -309,30 +322,10 @@ unlock: | |||
309 | break; | 322 | break; |
310 | } | 323 | } |
311 | pagevec_release(&pvec); | 324 | pagevec_release(&pvec); |
312 | if (likely(!be_atomic)) | 325 | cond_resched(); |
313 | cond_resched(); | ||
314 | } | 326 | } |
315 | return ret; | 327 | return ret; |
316 | } | 328 | } |
317 | |||
318 | /** | ||
319 | * invalidate_mapping_pages - Invalidate all the unlocked pages of one inode | ||
320 | * @mapping: the address_space which holds the pages to invalidate | ||
321 | * @start: the offset 'from' which to invalidate | ||
322 | * @end: the offset 'to' which to invalidate (inclusive) | ||
323 | * | ||
324 | * This function only removes the unlocked pages, if you want to | ||
325 | * remove all the pages of one inode, you must call truncate_inode_pages. | ||
326 | * | ||
327 | * invalidate_mapping_pages() will not block on IO activity. It will not | ||
328 | * invalidate pages which are dirty, locked, under writeback or mapped into | ||
329 | * pagetables. | ||
330 | */ | ||
331 | unsigned long invalidate_mapping_pages(struct address_space *mapping, | ||
332 | pgoff_t start, pgoff_t end) | ||
333 | { | ||
334 | return __invalidate_mapping_pages(mapping, start, end, false); | ||
335 | } | ||
336 | EXPORT_SYMBOL(invalidate_mapping_pages); | 329 | EXPORT_SYMBOL(invalidate_mapping_pages); |
337 | 330 | ||
338 | /* | 331 | /* |