Commit 264ca0f6 authored Feb 17, 2015 by Zhao Lei Committed by Chris Mason Apr 13, 2015

btrfs: Adjust commit-transaction condition to avoid NO_SPACE more



If we have any chance to make a successful write, we should not give up.

This patch adjust commit-transaction condition from:
  pinned >= wanted
to
  left + pinned >= wanted

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

parent f2ab7618

fs/btrfs/extent-tree.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -3931,7 +3931,8 @@ int btrfs_check_data_free_space(struct inode *inode, u64 bytes)
		* don't bother committing the transaction.
		*/
		if (percpu_counter_compare(&data_sinfo->total_bytes_pinned,
		bytes) < 0)
		used + bytes -
		data_sinfo->total_bytes) < 0)
		have_pinned_space = 0;
		spin_unlock(&data_sinfo->lock);