diff options
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/balloc.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index a425e78c73e..ae26c37e398 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -1804,15 +1804,17 @@ retry_alloc: goto io_error; free_blocks = le16_to_cpu(gdp->bg_free_blocks_count); - /* - * if there is not enough free blocks to make a new resevation - * turn off reservation for this allocation - */ - if (my_rsv && (free_blocks < windowsz) - && (rsv_is_empty(&my_rsv->rsv_window))) - my_rsv = NULL; if (free_blocks > 0) { + /* + * try to allocate with group target block + * in the goal group. If we have low free_blocks + * count turn off reservation + */ + if (my_rsv && (free_blocks < windowsz) + && (rsv_is_empty(&my_rsv->rsv_window))) + my_rsv = NULL; + bitmap_bh = ext4_read_block_bitmap(sb, group_no); if (!bitmap_bh) goto io_error; @@ -1845,7 +1847,7 @@ retry_alloc: * free blocks is less than half of the reservation * window size. */ - if (free_blocks <= (windowsz/2)) + if (my_rsv && (free_blocks <= (windowsz/2))) continue; brelse(bitmap_bh); |