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authorFabian Frederick <fabf@skynet.be>2014-08-06 16:04:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 18:01:15 -0700
commit3e2faa085448d5c478ebc9d5f6cb4d822467f4d7 (patch)
tree1c189513f09b2ea545aee48e5b772bc4ca2d7247 /mm/readahead.c
parentc42e5715617232563f0cf9f231d86b5133c4487e (diff)
downloadlwn-3e2faa085448d5c478ebc9d5f6cb4d822467f4d7.tar.gz
lwn-3e2faa085448d5c478ebc9d5f6cb4d822467f4d7.zip
mm/readahead.c: remove unused file_ra_state from count_history_pages
count_history_pages does only call page_cache_prev_hole in rcu_lock context using address_space mapping. There's no need to have file_ra_state here. Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/readahead.c')
-rw-r--r--mm/readahead.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/readahead.c b/mm/readahead.c
index 0ca36a7770b1..17b9172ec37f 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -326,7 +326,6 @@ static unsigned long get_next_ra_size(struct file_ra_state *ra,
* - thrashing threshold in memory tight systems
*/
static pgoff_t count_history_pages(struct address_space *mapping,
- struct file_ra_state *ra,
pgoff_t offset, unsigned long max)
{
pgoff_t head;
@@ -349,7 +348,7 @@ static int try_context_readahead(struct address_space *mapping,
{
pgoff_t size;
- size = count_history_pages(mapping, ra, offset, max);
+ size = count_history_pages(mapping, offset, max);
/*
* not enough history pages: