Ian Kent 43694d4bf8 autofs: revert "autofs: take more care to not update last_used on path walk" ... While commit 092a53452b ("autofs: take more care to not update last_used on path walk") helped (partially) resolve a problem where automounts were not expiring due to aggressive accesses from user space it has a side effect for very large environments. This change helps with the expire problem by making the expire more aggressive but, for very large environments, that means more mount requests from clients. When there are a lot of clients that can mean fairly significant server load increases. It turns out I put the last_used in this position to solve this very problem and failed to update my own thinking of the autofs expire policy. So the patch being reverted introduces a regression which should be fixed. Link: http://lkml.kernel.org/r/151174729420.6162.1832622523537052460.stgit@pluto.themaw.net Fixes: 092a53452b ("autofs: take more care to not update last_used on path walk") Signed-off-by: Ian Kent <raven@themaw.net> Reviewed-by: NeilBrown <neilb@suse.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: <stable@vger.kernel.org> [4.11+] Cc: Colin Walters <walters@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Ondrej Holy <oholy@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-11-29 18:40:43 -08:00
..
autofs_i.h	autofs: non functional header inclusion cleanup	2017-09-08 18:26:50 -07:00
dev-ioctl.c	autofs: use unsigned int/long instead of uint/ulong for ioctl args	2017-09-08 18:26:50 -07:00
expire.c	autofs - dont hold spin lock over direct mount expire	2016-12-03 20:51:50 -05:00
init.c	autofs4: coding style fixes	2016-03-15 16:55:16 -07:00
inode.c	don't open-code file_inode()	2016-12-04 18:29:28 -05:00
Kconfig	Fix dead URLs to ftp.kernel.org	2017-03-28 16:16:52 +02:00
Makefile	autofs4: add miscellaneous device for ioctls	2008-10-16 11:21:39 -07:00
root.c	autofs: revert "autofs: take more care to not update last_used on path walk"	2017-11-29 18:40:43 -08:00
symlink.c	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
waitq.c	autofs: don't fail mount for transient error	2017-11-17 16:10:02 -08:00