fix-setting-of-referenced-bit-in-ext4_es_lookup_extent

   1 ext4: fix setting of referenced bit in ext4_es_lookup_extent()
   2
   3 From: Jan Kara <jack@suse.cz>
   4
   5 We were setting referenced bit on the extent structure we return from
   6 ext4_es_lookup_extent() which is just a private structure on stack. Thus
   7 setting had no effect. Set the bit in the structure in the status tree
   8 instead.
   9
  10 Signed-off-by: Jan Kara <jack@suse.cz>
  11 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
  12 ---
  13  fs/ext4/extents_status.c | 4 ++--
  14  1 file changed, 2 insertions(+), 2 deletions(-)
  15
  16 diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
  17 index ac748b3af1c1..e38b987ac7f5 100644
  18 --- a/fs/ext4/extents_status.c
  19 +++ b/fs/ext4/extents_status.c
  20 @@ -823,8 +823,8 @@ out:
  21                 es->es_lblk = es1->es_lblk;
  22                 es->es_len = es1->es_len;
  23                 es->es_pblk = es1->es_pblk;
  24 -               if (!ext4_es_is_referenced(es))
  25 -                       ext4_es_set_referenced(es);
  26 +               if (!ext4_es_is_referenced(es1))
  27 +                       ext4_es_set_referenced(es1);
  28                 stats->es_stats_cache_hits++;
  29         } else {
  30                 stats->es_stats_cache_misses++;
  31 --
  32 2.6.2
  33
  34