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| author | Jan Kara <jack@suse.cz> | 2014-11-25 11:53:47 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-11-25 11:53:47 -0500 |
| commit | 624d0f1dd7c80d2bac4fc3066b2ff3947f890883 (patch) | |
| tree | 46f138fb80ce3c179ee96b6b6ce039d47022ed26 /fs/ext4/extents_status.c | |
| parent | dd4759255188771e60cf3455982959a1ba04f4eb (diff) | |
| download | linux-624d0f1dd7c80d2bac4fc3066b2ff3947f890883.tar.gz linux-624d0f1dd7c80d2bac4fc3066b2ff3947f890883.tar.bz2 linux-624d0f1dd7c80d2bac4fc3066b2ff3947f890883.zip | |
ext4: cleanup flag definitions for extent status tree
Currently flags for extent status tree are defined twice, once shifted
and once without a being shifted. Consolidate these definitions into one
place and make some computations automatic to make adding flags less
error prone. Compiler should be clever enough to figure out these are
constants and generate the same code.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents_status.c')
| -rw-r--r-- | fs/ext4/extents_status.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c index 8f2aac4006d2..30596498ed0b 100644 --- a/fs/ext4/extents_status.c +++ b/fs/ext4/extents_status.c @@ -1174,6 +1174,8 @@ int ext4_es_register_shrinker(struct ext4_sb_info *sbi) { int err; + /* Make sure we have enough bits for physical block number */ + BUILD_BUG_ON(ES_SHIFT < 48); INIT_LIST_HEAD(&sbi->s_es_list); sbi->s_es_nr_inode = 0; spin_lock_init(&sbi->s_es_lock); |