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authorJosef Bacik <jbacik@fb.com>2014-02-06 16:06:06 -0500
committerJosef Bacik <jbacik@fb.com>2014-03-10 15:15:52 -0400
commitc581afc8db4e9aaa8af2246bb72c1bf72825014d (patch)
tree2f1f68385417065407d6c17fc348866f5142bf7c /fs/btrfs/inode.c
parent1bae30982bc86ab66d61ccb6e22792593b45d44d (diff)
downloadlinux-c581afc8db4e9aaa8af2246bb72c1bf72825014d.tar.bz2
Btrfs: balance delayed inode updates
While trying to reproduce a delayed ref problem I noticed the box kept falling over using all 80gb of my ram with btrfs_inode's and btrfs_delayed_node's. Turns out this is because we only throttle delayed inode updates in btrfs_dirty_inode, which doesn't actually get called that often, especially when all you are doing is creating a bunch of files. So balance delayed inode updates everytime we create a new inode. With this patch we no longer use up all of our ram with delayed inode updates. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 4ffb6d79f9f0..a7e6690e0946 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5795,6 +5795,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
}
out_unlock:
btrfs_end_transaction(trans, root);
+ btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
if (drop_inode) {
inode_dec_link_count(inode);
@@ -5868,6 +5869,7 @@ out_unlock:
inode_dec_link_count(inode);
iput(inode);
}
+ btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
return err;
}
@@ -5926,6 +5928,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
}
btrfs_end_transaction(trans, root);
+ btrfs_balance_delayed_items(root);
fail:
if (drop_inode) {
inode_dec_link_count(inode);
@@ -5992,6 +5995,7 @@ out_fail:
btrfs_end_transaction(trans, root);
if (drop_on_err)
iput(inode);
+ btrfs_balance_delayed_items(root);
btrfs_btree_balance_dirty(root);
return err;
}