Btrfs: seperate out btrfs_block_rsv_check out into 2 different functions
Currently btrfs_block_rsv_check does 2 things, it will either refill a block
reserve like in the truncate or refill case, or it will check to see if there is
enough space in the global reserve and possibly refill it. However because of
overcommit we could be well overcommitting ourselves just to try and refill the
global reserve, when really we should just be committing the transaction. So
breack this out into btrfs_block_rsv_refill and btrfs_block_rsv_check. Refill
will try to reserve more metadata if it can and btrfs_block_rsv_check will not,
it will only tell you if the factor of the total space is still reserved.
Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b6b70bd..f12747c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3604,7 +3604,7 @@
* doing the truncate.
*/
while (1) {
- ret = btrfs_block_rsv_check(root, rsv, min_size, 0, 1);
+ ret = btrfs_block_rsv_refill(root, rsv, min_size);
/*
* Try and steal from the global reserve since we will
@@ -6613,7 +6613,7 @@
btrfs_add_ordered_operation(trans, root, inode);
while (1) {
- ret = btrfs_block_rsv_check(root, rsv, min_size, 0, 1);
+ ret = btrfs_block_rsv_refill(root, rsv, min_size);
if (ret) {
/*
* This can only happen with the original transaction we