diff options
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index ee73efe..62d4970 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -28,6 +28,7 @@ #include "volumes.h" #include "locking.h" #include "ref-cache.h" +#include "compat.h" #define PENDING_EXTENT_INSERT 0 #define PENDING_EXTENT_DELETE 1 @@ -899,6 +900,17 @@ static int noinline remove_extent_backref(struct btrfs_trans_handle *trans, return ret; } +static void btrfs_issue_discard(struct block_device *bdev, + u64 start, u64 len) +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28) + blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL); +#else + blkdev_issue_discard(bdev, start >> 9, len >> 9); +#endif +} + + static int noinline free_extents(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, struct list_head *del_list) @@ -1108,6 +1120,7 @@ search: BUG_ON(ret); #ifdef BIO_RW_DISCARD + map_length = tmp->num_bytes; ret = btrfs_map_block(&info->mapping_tree, READ, tmp->bytenr, &map_length, &multi, 0); @@ -1115,16 +1128,16 @@ search: struct btrfs_bio_stripe *stripe; int i; - stripe = multi->stripe; + stripe = multi->stripes; if (map_length > tmp->num_bytes) map_length = tmp->num_bytes; for (i = 0; i < multi->num_stripes; i++, stripe++) - blkdev_issue_discard(stripe->dev->bdev, - stripe->physical >> 9, - map_length >> 9); + btrfs_issue_discard(stripe->dev->bdev, + stripe->physical, + map_length); kfree(multi); } #endif @@ -2498,9 +2511,9 @@ static int __free_extent(struct btrfs_trans_handle *trans, map_length = num_bytes; for (i = 0; i < multi->num_stripes; i++, stripe++) { - blkdev_issue_discard(stripe->dev->bdev, - stripe->physical >> 9, - map_length >> 9); + btrfs_issue_discard(stripe->dev->bdev, + stripe->physical, + map_length); } kfree(multi); } |