]> git.baikalelectronics.ru Git - kernel.git/commit
mm/nommu: share the i_mmap_rwsem
authorDavidlohr Bueso <dave@stgolabs.net>
Sat, 13 Dec 2014 00:54:39 +0000 (16:54 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 13 Dec 2014 20:42:46 +0000 (12:42 -0800)
commit25bad1f13d138f2acce41379c2542c313c0a88b1
treec51ec6206f123b9d09caed4878d4958314d497db
parent6327c855fb9a100e8069556aa58e90d6d71df48f
mm/nommu: share the i_mmap_rwsem

Shrinking/truncate logic can call nommu_shrink_inode_mappings() to verify
that any shared mappings of the inode in question aren't broken (dead
zone).  afaict the only user being ramfs to handle the size change
attribute.

Pretty much a no-brainer to share the lock.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Acked-by: "Kirill A. Shutemov" <kirill@shutemov.name>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/nommu.c