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(parent: cb517ea) | patch
Btrfs: introduce grab/put functions for the root of the fs/file tree
authorMiao Xie <miaox@cn.fujitsu.com>
Wed, 15 May 2013 07:48:20 +0000 (07:48 +0000)
committerJosef Bacik <jbacik@fusionio.com>
Fri, 14 Jun 2013 15:29:38 +0000 (11:29 -0400)
commitb0feb9d96e71a88d7eec56f41b8f23e92af889b0
treee808deeb4f3b33636d6481ff1bc88ae269880fa3tree | snapshot (tar.gz zip)
parentcb517eabba4f109810dba2e5f37b0dcf22103065commit | diff
Btrfs: introduce grab/put functions for the root of the fs/file tree

The grab/put funtions will be used in the next patch, which need grab
the root object and ensure it is not freed. We use reference counter
instead of the srcu lock is to aovid blocking the memory reclaim task,
which invokes synchronize_srcu().

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
fs/btrfs/ctree.h diff | blob | blame | history
fs/btrfs/disk-io.c diff | blob | blame | history
fs/btrfs/disk-io.h diff | blob | blame | history
fs/btrfs/extent-tree.c diff | blob | blame | history