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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-08 20:02:31 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-08 20:02:31 -0800 |
| commit | dde86f41f4cb13015288abcff4706993c007f65d (patch) | |
| tree | 2e981cfa9eca8bddd5dcef63957f677ad2f7b15b /fs/ext4/ext4.h | |
| parent | 3b2c67de4650a725654cf9bf36e0025ca10442cd (diff) | |
| parent | 802eee95bde72fd0cd0f3a5b2098375a487d1eda (diff) | |
Merge v3.13-rc6 into char-misc-next
We want these fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index e6185031c1c..ece55565b9c 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -268,6 +268,16 @@ struct ext4_io_submit { /* Translate # of blks to # of clusters */ #define EXT4_NUM_B2C(sbi, blks) (((blks) + (sbi)->s_cluster_ratio - 1) >> \ (sbi)->s_cluster_bits) +/* Mask out the low bits to get the starting block of the cluster */ +#define EXT4_PBLK_CMASK(s, pblk) ((pblk) & \ + ~((ext4_fsblk_t) (s)->s_cluster_ratio - 1)) +#define EXT4_LBLK_CMASK(s, lblk) ((lblk) & \ + ~((ext4_lblk_t) (s)->s_cluster_ratio - 1)) +/* Get the cluster offset */ +#define EXT4_PBLK_COFF(s, pblk) ((pblk) & \ + ((ext4_fsblk_t) (s)->s_cluster_ratio - 1)) +#define EXT4_LBLK_COFF(s, lblk) ((lblk) & \ + ((ext4_lblk_t) (s)->s_cluster_ratio - 1)) /* * Structure of a blocks group descriptor |