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authorNamjae Jeon <linkinjeon@gmail.com>2012-12-11 16:00:21 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 17:22:21 -0800
commitd0e1d66b5aa1ec9f556f951aa9a114cc192cd01c (patch)
tree3c3d9d8a1575a5fff0233d70951ed7d94c9a1e7e /mm/page-writeback.c
parentb58ed041a360ed051fab17e4d9b0f451c6fedba7 (diff)
downloadop-kernel-dev-d0e1d66b5aa1ec9f556f951aa9a114cc192cd01c.zip
op-kernel-dev-d0e1d66b5aa1ec9f556f951aa9a114cc192cd01c.tar.gz
writeback: remove nr_pages_dirtied arg from balance_dirty_pages_ratelimited_nr()
There is no reason to pass the nr_pages_dirtied argument, because nr_pages_dirtied value from the caller is unused in balance_dirty_pages_ratelimited_nr(). Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Vivek Trivedi <vtrivedi018@gmail.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page-writeback.c')
-rw-r--r--mm/page-writeback.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 830893b..6f427122 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1069,7 +1069,7 @@ static void bdi_update_bandwidth(struct backing_dev_info *bdi,
}
/*
- * After a task dirtied this many pages, balance_dirty_pages_ratelimited_nr()
+ * After a task dirtied this many pages, balance_dirty_pages_ratelimited()
* will look to see if it needs to start dirty throttling.
*
* If dirty_poll_interval is too low, big NUMA machines will call the expensive
@@ -1436,9 +1436,8 @@ static DEFINE_PER_CPU(int, bdp_ratelimits);
DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
/**
- * balance_dirty_pages_ratelimited_nr - balance dirty memory state
+ * balance_dirty_pages_ratelimited - balance dirty memory state
* @mapping: address_space which was dirtied
- * @nr_pages_dirtied: number of pages which the caller has just dirtied
*
* Processes which are dirtying memory should call in here once for each page
* which was newly dirtied. The function will periodically check the system's
@@ -1449,8 +1448,7 @@ DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
* limit we decrease the ratelimiting by a lot, to prevent individual processes
* from overshooting the limit by (ratelimit_pages) each.
*/
-void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
- unsigned long nr_pages_dirtied)
+void balance_dirty_pages_ratelimited(struct address_space *mapping)
{
struct backing_dev_info *bdi = mapping->backing_dev_info;
int ratelimit;
@@ -1484,6 +1482,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
*/
p = &__get_cpu_var(dirty_throttle_leaks);
if (*p > 0 && current->nr_dirtied < ratelimit) {
+ unsigned long nr_pages_dirtied;
nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
*p -= nr_pages_dirtied;
current->nr_dirtied += nr_pages_dirtied;
@@ -1493,7 +1492,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
if (unlikely(current->nr_dirtied >= ratelimit))
balance_dirty_pages(mapping, current->nr_dirtied);
}
-EXPORT_SYMBOL(balance_dirty_pages_ratelimited_nr);
+EXPORT_SYMBOL(balance_dirty_pages_ratelimited);
void throttle_vm_writeout(gfp_t gfp_mask)
{
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