tree cb02c3a9e662cca039f7093b69f62b4e0838c98f
parent ccb26b5a65867839d95156e02ea4861f64a8cbf3
author Jan Kara <jack@suse.cz> 1336049279 +0200
committer Fengguang Wu <fengguang.wu@intel.com> 1336283019 +0800

writeback: Remove wb->list_lock from writeback_single_inode()

writeback_single_inode() doesn't need wb->list_lock for anything on entry now.
So remove the requirement. This makes locking of writeback_single_inode()
temporarily awkward (entering with i_lock, returning with i_lock and
wb->list_lock) but it will be sanitized in the next patch.

Also inode_wait_for_writeback() doesn't need wb->list_lock for anything. It was
just taking it to make usage convenient for callers but with
writeback_single_inode() changing it's not very convenient anymore. So remove
the lock from that function.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>