From b64a2851ba25b3410a87d3d1b751155612105c8e Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Wed, 20 Aug 2008 13:39:41 -0400 Subject: Btrfs: Wait for async bio submissions to make some progress at queue time Before, the btrfs bdi congestion function was used to test for too many async bios. This keeps that check to throttle pdflush, but also adds a check while queuing bios. Signed-off-by: Chris Mason --- fs/btrfs/disk-io.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/btrfs/disk-io.h') diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index e904a69347a4..2562a273ae18 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -73,4 +73,5 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode, int rw, struct bio *bio, int mirror_num, extent_submit_bio_hook_t *submit_bio_hook); int btrfs_congested_async(struct btrfs_fs_info *info, int iodone); +unsigned long btrfs_async_submit_limit(struct btrfs_fs_info *info); #endif -- cgit v1.2.3