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| author | Ingo Molnar <mingo@kernel.org> | 2014-11-16 12:50:25 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-11-16 12:50:25 +0300 |
| commit | e9ac5f0fa8549dffe2a15870217a9c2e7cd557ec (patch) | |
| tree | 863e0e108f7b7ba2dffc7575bbdfc2d454fc2017 /fs/jbd2/revoke.c | |
| parent | 44dba3d5d6a10685fb15bd1954e62016334825e0 (diff) | |
| parent | 6e998916dfe327e785e7c2447959b2c1a3ea4930 (diff) | |
| download | linux-e9ac5f0fa8549dffe2a15870217a9c2e7cd557ec.tar.xz | |
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/jbd2/revoke.c')
| -rw-r--r-- | fs/jbd2/revoke.c | 10 |
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, |