diff options
| author | Edward Shishkin <edward.shishkin@gmail.com> | 2009-03-31 15:19:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-01 08:59:12 -0700 |
| commit | e3a7cca1ef4c1af9b0acef9bd66eff6582a737b5 (patch) | |
| tree | 717097ec82ce0de55e44b2fe3e35fa041e5169b2 /mm | |
| parent | bd2f6199cf9af472aeefa1b642c9f504f19e6008 (diff) | |
vfs: add/use account_page_dirtied()
Add a helper function account_page_dirtied(). Use that from two
callsites. reiser4 adds a function which adds a third callsite.
Signed-off-by: Edward Shishkin<edward.shishkin@gmail.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page-writeback.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 40ca7cdb653..6aa92b03c74 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1198,6 +1198,20 @@ int __set_page_dirty_no_writeback(struct page *page) } /* + * Helper function for set_page_dirty family. + * NOTE: This relies on being atomic wrt interrupts. + */ +void account_page_dirtied(struct page *page, struct address_space *mapping) +{ + if (mapping_cap_account_dirty(mapping)) { + __inc_zone_page_state(page, NR_FILE_DIRTY); + __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); + task_dirty_inc(current); + task_io_account_write(PAGE_CACHE_SIZE); + } +} + +/* * For address_spaces which do not use buffers. Just tag the page as dirty in * its radix tree. * @@ -1226,13 +1240,7 @@ int __set_page_dirty_nobuffers(struct page *page) if (mapping2) { /* Race with truncate? */ BUG_ON(mapping2 != mapping); WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); - if (mapping_cap_account_dirty(mapping)) { - __inc_zone_page_state(page, NR_FILE_DIRTY); - __inc_bdi_stat(mapping->backing_dev_info, - BDI_RECLAIMABLE); - task_dirty_inc(current); - task_io_account_write(PAGE_CACHE_SIZE); - } + account_page_dirtied(page, mapping); radix_tree_tag_set(&mapping->page_tree, page_index(page), PAGECACHE_TAG_DIRTY); } |