linux-stable/fs/autofs4
Ian Kent ac83871996 autofs4 - fix device ioctl mount lookup
When reconnecting to automounts at startup an autofs ioctl is used
to find the device and inode of existing mounts so they can be used
to open a file descriptor of possibly covered mounts.

At this time the the caller might not yet "own" the mount so it can
trigger calling ->d_automount(). This causes automount to hang when
trying to reconnect to direct or offset mount types.

Consequently kern_path() can't be used but kern_path_mountpoint() can be.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-09-08 22:07:47 -04:00
..
autofs_i.h new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
dev-ioctl.c autofs4 - fix device ioctl mount lookup 2013-09-08 22:07:47 -04:00
expire.c helper for reading ->d_count 2013-07-05 18:59:33 +04:00
init.c fs: Limit sys_mount to only request filesystem modules. 2013-03-03 19:36:31 -08:00
inode.c userns: Support autofs4 interacing with multiple user namespaces 2012-11-14 22:05:32 -08:00
Kconfig fs/Kconfig: move autofs, autofs4 out 2009-01-22 13:15:54 +03:00
Makefile autofs4: add miscellaneous device for ioctls 2008-10-16 11:21:39 -07:00
root.c helper for reading ->d_count 2013-07-05 18:59:33 +04:00
symlink.c autofs4: keep symlink body in inode->i_private 2011-01-18 01:21:27 -05:00
waitq.c autofs4 - autofs4_catatonic_mode(): remove redundant null check on kfree() 2013-03-01 12:04:39 -08:00