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.
Cc: Andrew Morton <a...@linux-foundation.org> Cc: Fengguang Wu <fengguang...@intel.com> Signed-off-by: Fabian Frederick <f...@skynet.be> --- mm/readahead.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 0ca36a7..17b9172 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: -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/