| commit | 10f6327b5d26660e06120ba17cff993cb616b1d2 | [log] [tgz] |
|---|---|---|
| author | Al Viro <viro@zeniv.linux.org.uk> | Thu Nov 17 15:05:22 2011 -0500 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Sun Jan 08 19:33:24 2012 -0500 |
| tree | ee1bade28f62a896db62570589abcb9c8f6f2936 | |
| parent | 6de1d09d9677dce7a04ef485d426821159ab7de9 [diff] |
btrfs: fix a deadlock in btrfs_scan_one_device() pathname resolution under a global mutex, taken on some paths in ->mount() is a Bad Idea(tm) - think what happens if said pathname resolution triggers automount of some btrfs instance and walks into attempt to grab the same mutex. Deadlock - we are waiting for daemon to finish walking the path, daemon is waiting for us to release the mutex... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>