btrfs: fix a deadlock in btrfs_scan_one_device()

Browse source

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>

...

This commit is contained in:

Al Viro 2011-11-17 15:05:22 -05:00

parent 6de1d09d96

commit 10f6327b5d

1 changed files with 2 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

fs/btrfs/volumes.c

View file