silence-sparse-check-warning-for-function-ext4_trim_extent

   1 ext4: silence sparse check warning for function ext4_trim_extent
   2
   3 From: jon ernst <jonernst07@gmail.com>
   4
   5 This fixes the following sparse warning:
   6
   7      CHECK   fs/ext4/mballoc.c
   8    fs/ext4/mballoc.c:5019:9: warning: context imbalance in
   9    'ext4_trim_extent' - unexpected unlock
  10
  11 Signed-off-by: "Jon Ernst" <jonernst07@gmail.com>
  12 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
  13 ---
  14  fs/ext4/mballoc.c | 2 ++
  15  1 file changed, 2 insertions(+)
  16
  17 diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
  18 index 73ccbb3..c8238a2 100644
  19 --- a/fs/ext4/mballoc.c
  20 +++ b/fs/ext4/mballoc.c
  21 @@ -5016,6 +5016,8 @@ error_return:
  22   */
  23  static int ext4_trim_extent(struct super_block *sb, int start, int count,
  24                              ext4_group_t group, struct ext4_buddy *e4b)
  25 +__releases(bitlock)
  26 +__acquires(bitlock)
  27  {
  28         struct ext4_free_extent ex;
  29         int ret = 0;