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authorJ. Bruce Fields <bfields@redhat.com>2014-11-19 12:06:30 -0500
committerJ. Bruce Fields <bfields@redhat.com>2014-11-19 12:06:30 -0500
commit56429e9b3be567a173bd05f5594faf8522c34d3a (patch)
treed218d430ed992cdfa42da084bf36e5aa3c2ecb26 /fs/jbd2/revoke.c
parent5b095e99928cc13332d364f7cca7a9ca684369b4 (diff)
parent093a1468b6edb0e568be7311b8d2228d205702db (diff)
merge nfs bugfixes into nfsd for-3.19 branch
In addition to nfsd bugfixes, there are some fixes in -rc5 for client bugs that can interfere with my testing.
Diffstat (limited to 'fs/jbd2/revoke.c')
-rw-r--r--fs/jbd2/revoke.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index d5e95a175c92..c6cbaef2bda1 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -92,6 +92,7 @@
#include <linux/init.h>
#include <linux/bio.h>
#include <linux/log2.h>
+#include <linux/hash.h>
#endif
static struct kmem_cache *jbd2_revoke_record_cache;
@@ -130,16 +131,9 @@ static void flush_descriptor(journal_t *, struct buffer_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 long long block)
{
- struct jbd2_revoke_table_s *table = journal->j_revoke;
- int hash_shift = table->hash_shift;
- int hash = (int)block ^ (int)((block >> 31) >> 1);
-
- return ((hash << (hash_shift - 6)) ^
- (hash >> 13) ^
- (hash << (hash_shift - 12))) & (table->hash_size - 1);
+ return hash_64(block, journal->j_revoke->hash_shift);
}
static int insert_revoke_hash(journal_t *journal, unsigned long long blocknr,