X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Freadahead.c;h=77e8ddf945e9a725d4b675923124f4eafd0924e2;hb=bf1db69fbf4ff511e88736ce2e6318846f34492b;hp=d8723a5f6496d05af23445e6ae862754e9d41214;hpb=2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92;p=linux-2.6

diff --git a/mm/readahead.c b/mm/readahead.c
index d8723a5f64..77e8ddf945 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -382,9 +382,9 @@ ondemand_readahead(struct address_space *mapping,
 	if (hit_readahead_marker) {
 		pgoff_t start;
 
-		read_lock_irq(&mapping->tree_lock);
-		start = radix_tree_next_hole(&mapping->page_tree, offset, max+1);
-		read_unlock_irq(&mapping->tree_lock);
+		rcu_read_lock();
+		start = radix_tree_next_hole(&mapping->page_tree, offset,max+1);
+		rcu_read_unlock();
 
 		if (!start || start - offset > max)
 			return 0;