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| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-25 10:40:14 -0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-25 10:40:14 -0400 |
| commit | ff877ea80efa2015b6263766f78ee42c2a1b32f9 (patch) | |
| tree | 85205005c611ab774702148558321c6fb92f1ccd /mm/page-writeback.c | |
| parent | 30821fee4f0cb3e6d241d9f7ddc37742212e3eb7 (diff) | |
| parent | d37e6bf68fc1eb34a4ad21d9ae8890ed37ea80e7 (diff) | |
| download | kernel-crypto-ff877ea80efa2015b6263766f78ee42c2a1b32f9.tar.gz kernel-crypto-ff877ea80efa2015b6263766f78ee42c2a1b32f9.tar.xz kernel-crypto-ff877ea80efa2015b6263766f78ee42c2a1b32f9.zip | |
Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 789b6adbef3..94c6d8988ab 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -126,8 +126,6 @@ static void background_writeout(unsigned long _min_pages); static struct prop_descriptor vm_completions; static struct prop_descriptor vm_dirties; -static unsigned long determine_dirtyable_memory(void); - /* * couple the period to the dirty_ratio: * @@ -347,7 +345,13 @@ static unsigned long highmem_dirtyable_memory(unsigned long total) #endif } -static unsigned long determine_dirtyable_memory(void) +/** + * determine_dirtyable_memory - amount of memory that may be used + * + * Returns the numebr of pages that can currently be freed and used + * by the kernel for direct mappings. + */ +unsigned long determine_dirtyable_memory(void) { unsigned long x; @@ -956,6 +960,9 @@ retry: } if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) mapping->writeback_index = index; + + if (wbc->range_cont) + wbc->range_start = index << PAGE_CACHE_SHIFT; return ret; } EXPORT_SYMBOL(write_cache_pages); |