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authorJosef Bacik <jbacik@fusionio.com>2012-10-12 15:27:49 -0400
committerJosef Bacik <jbacik@fusionio.com>2013-02-20 09:37:04 -0500
commit2ab28f322f9896782da904f5942f3873432addc8 (patch)
treed8d136d90b96f96d63262f8d2eb11680bed80aab /fs/btrfs/disk-io.c
parentdfd79829b709af3c2ac55951353a874ae89f41c3 (diff)
Btrfs: wait on ordered extents at the last possible moment
Since we don't actually copy the extent information from the source tree in the fast case we don't need to wait for ordered io to be completed in order to fsync, we just need to wait for the io to be completed. So when we're logging our file just attach all of the ordered extents to the log, and then when the log syncs just wait for IO_DONE on the ordered extents and then write the super. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index a762f9137610..1db8a9938829 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1178,9 +1178,13 @@ static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
INIT_LIST_HEAD(&root->dirty_list);
INIT_LIST_HEAD(&root->root_list);
+ INIT_LIST_HEAD(&root->logged_list[0]);
+ INIT_LIST_HEAD(&root->logged_list[1]);
spin_lock_init(&root->orphan_lock);
spin_lock_init(&root->inode_lock);
spin_lock_init(&root->accounting_lock);
+ spin_lock_init(&root->log_extents_lock[0]);
+ spin_lock_init(&root->log_extents_lock[1]);
mutex_init(&root->objectid_mutex);
mutex_init(&root->log_mutex);
init_waitqueue_head(&root->log_writer_wait);