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authorChris Mason <chris.mason@oracle.com>2008-04-25 08:51:48 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:02 -0400
commit81d7ed29ff6bdec903c36c26b386e16c014993b2 (patch)
tree561f6d5b85c9af14acc97ec45b6ce6622c3ec3f4 /fs/btrfs/ordered-data.c
parentbce4eae9864e6b6ebde5d7f05576ff0a6c3724d0 (diff)
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Btrfs: Throttle file_write when data=ordered is flushing the inode
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ordered-data.c')
-rw-r--r--fs/btrfs/ordered-data.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 3ee51e1..b474902 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -269,3 +269,16 @@ int btrfs_del_ordered_inode(struct inode *inode)
return ret;
}
+int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode)
+{
+ struct btrfs_transaction *cur = root->fs_info->running_transaction;
+ while(cur == root->fs_info->running_transaction &&
+ atomic_read(&BTRFS_I(inode)->ordered_writeback)) {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)
+ congestion_wait(WRITE, HZ/20);
+#else
+ blk_congestion_wait(WRITE, HZ/20);
+#endif
+ }
+ return 0;
+}