Jann Horn 4d45e75a99 mm: remove the now-unnecessary mmget_still_valid() hack
The preceding patches have ensured that core dumping properly takes the
mmap_lock.  Thanks to that, we can now remove mmget_still_valid() and all
its users.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Link: http://lkml.kernel.org/r/20200827114932.3572699-8-jannh@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:22 -07:00
..
2020-10-14 11:42:04 -07:00
2020-10-15 14:43:29 -07:00
2020-10-15 11:07:44 -07:00
2020-10-15 11:07:44 -07:00
2020-10-13 18:38:32 -07:00
2020-10-04 12:19:12 +02:00
2020-10-14 15:15:35 -07:00
2020-10-12 16:08:57 +02:00
2020-10-15 11:07:44 -07:00
\n
2020-10-15 14:56:15 -07:00