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authorChris Mason <chris.mason@oracle.com>2008-07-17 12:54:14 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:04 -0400
commitf9295749388f82c8d2f485e99c72cd7c7876a99b (patch)
tree5089b0f723583d262116775b8b9fb5b4b8d291e0 /fs/btrfs/ctree.h
parentdbe674a99c8af088faa4c95eddaeb271a3140ab6 (diff)
downloadlwn-f9295749388f82c8d2f485e99c72cd7c7876a99b.tar.gz
lwn-f9295749388f82c8d2f485e99c72cd7c7876a99b.zip
btrfs_start_transaction: wait for commits in progress to finish
btrfs_commit_transaction has to loop waiting for any writers in the transaction to finish before it can proceed. btrfs_start_transaction should be polite and not join a transaction that is in the process of being finished off. There are a few places that can't wait, basically the ones doing IO that might be needed to finish the transaction. For them, btrfs_join_transaction is added. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4ddc8a8f82cd..acbce542d291 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -513,6 +513,7 @@ struct btrfs_fs_info {
u64 alloc_start;
struct btrfs_transaction *running_transaction;
wait_queue_head_t transaction_throttle;
+ wait_queue_head_t transaction_wait;
struct btrfs_super_block super_copy;
struct btrfs_super_block super_for_commit;
struct block_device *__bdev;