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authorIngo Molnar <mingo@kernel.org>2014-11-16 10:50:25 +0100
committerIngo Molnar <mingo@kernel.org>2014-11-16 10:50:25 +0100
commite9ac5f0fa8549dffe2a15870217a9c2e7cd557ec (patch)
tree863e0e108f7b7ba2dffc7575bbdfc2d454fc2017 /fs/jbd/revoke.c
parent44dba3d5d6a10685fb15bd1954e62016334825e0 (diff)
parent6e998916dfe327e785e7c2447959b2c1a3ea4930 (diff)
Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying more changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/jbd/revoke.c')
-rw-r--r--fs/jbd/revoke.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index 8898bbd2b61e..dcead636c33b 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -93,6 +93,7 @@
#include <linux/bio.h>
#endif
#include <linux/log2.h>
+#include <linux/hash.h>
static struct kmem_cache *revoke_record_cache;
static struct kmem_cache *revoke_table_cache;
@@ -129,15 +130,11 @@ static void flush_descriptor(journal_t *, struct journal_head *, int, int);
/* Utility functions to maintain the revoke table */
-/* Borrowed from buffer.c: this is a tried and tested block hash function */
static inline int hash(journal_t *journal, unsigned int block)
{
struct jbd_revoke_table_s *table = journal->j_revoke;
- int hash_shift = table->hash_shift;
- return ((block << (hash_shift - 6)) ^
- (block >> 13) ^
- (block << (hash_shift - 12))) & (table->hash_size - 1);
+ return hash_32(block, table->hash_shift);
}
static int insert_revoke_hash(journal_t *journal, unsigned int blocknr,