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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 22:50:13 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-16 22:50:13 -0400 |
commit | 517d08699b250021303f9a7cf0d758b6dc0748ed (patch) | |
tree | 5e5b0134c3fffb78fe9d8b1641a64ff28fdd7bbc /mm/truncate.c | |
parent | 8eeee4e2f04fc551f50c9d9847da2d73d7d33728 (diff) | |
parent | a34601c5d84134055782ee031d58d82f5440e918 (diff) |
Merge branch 'akpm'
* akpm: (182 commits)
fbdev: bf54x-lq043fb: use kzalloc over kmalloc/memset
fbdev: *bfin*: fix __dev{init,exit} markings
fbdev: *bfin*: drop unnecessary calls to memset
fbdev: bfin-t350mcqb-fb: drop unused local variables
fbdev: blackfin has __raw I/O accessors, so use them in fb.h
fbdev: s1d13xxxfb: add accelerated bitblt functions
tcx: use standard fields for framebuffer physical address and length
fbdev: add support for handoff from firmware to hw framebuffers
intelfb: fix a bug when changing video timing
fbdev: use framebuffer_release() for freeing fb_info structures
radeon: P2G2CLK_ALWAYS_ONb tested twice, should 2nd be P2G2CLK_DAC_ALWAYS_ONb?
s3c-fb: CPUFREQ frequency scaling support
s3c-fb: fix resource releasing on error during probing
carminefb: fix possible access beyond end of carmine_modedb[]
acornfb: remove fb_mmap function
mb862xxfb: use CONFIG_OF instead of CONFIG_PPC_OF
mb862xxfb: restrict compliation of platform driver to PPC
Samsung SoC Framebuffer driver: add Alpha Channel support
atmel-lcdc: fix pixclock upper bound detection
offb: use framebuffer_alloc() to allocate fb_info struct
...
Manually fix up conflicts due to kmemcheck in mm/slab.c
Diffstat (limited to 'mm/truncate.c')
-rw-r--r-- | mm/truncate.c | 39 |
1 files changed, 16 insertions, 23 deletions
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 | /* |