diff options
Diffstat (limited to 'fs/ext4/mballoc.h')
| -rw-r--r-- | fs/ext4/mballoc.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h index 6d85ee8674a6..df6b5e7c2274 100644 --- a/fs/ext4/mballoc.h +++ b/fs/ext4/mballoc.h @@ -49,7 +49,7 @@ #define MB_DEFAULT_MIN_TO_SCAN 10 /* - * with 'ext4_mb_stats' allocator will collect stats that will be + * with 's_mb_stats' allocator will collect stats that will be * shown at umount. The collecting costs though! */ #define MB_DEFAULT_STATS 0 @@ -86,6 +86,13 @@ #define MB_DEFAULT_LINEAR_SCAN_THRESHOLD 16 /* + * The maximum order upto which CR_BEST_AVAIL_LEN can trim a particular + * allocation request. Example, if we have an order 7 request and max trim order + * of 3, we can trim this request upto order 4. + */ +#define MB_DEFAULT_BEST_AVAIL_TRIM_ORDER 3 + +/* * Number of valid buddy orders */ #define MB_NUM_ORDERS(sb) ((sb)->s_blocksize_bits + 2) @@ -179,11 +186,18 @@ struct ext4_allocation_context { /* copy of the best found extent taken before preallocation efforts */ struct ext4_free_extent ac_f_ex; + /* + * goal len can change in CR1.5, so save the original len. This is + * used while adjusting the PA window and for accounting. + */ + ext4_grpblk_t ac_orig_goal_len; + __u32 ac_groups_considered; __u32 ac_flags; /* allocation hints */ __u16 ac_groups_scanned; __u16 ac_groups_linear_remaining; __u16 ac_found; + __u16 ac_cX_found[EXT4_MB_NUM_CRS]; __u16 ac_tail; __u16 ac_buddy; __u8 ac_status; |