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History

Ian Kent d807ff838f autofs4 - fix expire check

In some cases when an autofs indirect mount is contained in a file
system that is marked as shared (such as when systemd does the
equivalent of "mount --make-rshared /" early in the boot), mounts
stop expiring.

When this happens the first expiry check on a mountpoint dentry in
autofs_expire_indirect() sees a mountpoint dentry with a higher
than minimal reference count. Consequently the dentry is condidered
busy and the actual expiry check is never done.

This particular check was originally meant as an optimisation to
detect a path walk in progress but with the addition of rcu-walk
it can be ineffective anyway.

Removing the test allows automounts to expire again since the
actual expire check doesn't rely on the dentry reference count.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2012-08-17 06:56:39 -07:00

autofs_i.h

autofs: make the autofsv5 packet file descriptor use a packetized pipe

2012-04-29 13:30:08 -07:00

dev-ioctl.c

switch dentry_open() to struct path, make it grab references itself

2012-07-23 00:01:29 +04:00

expire.c

autofs4 - fix expire check

2012-08-17 06:56:39 -07:00

init.c

autofs: set things up *before* registering fs type