Naoya Horiguchi af73e4d950 hugetlbfs: fix mmap failure in unaligned size request ... The current kernel returns -EINVAL unless a given mmap length is "almost" hugepage aligned. This is because in sys_mmap_pgoff() the given length is passed to vm_mmap_pgoff() as it is without being aligned with hugepage boundary. This is a regression introduced in commit 40716e2924 ("hugetlbfs: fix alignment of huge page requests"), where alignment code is pushed into hugetlb_file_setup() and the variable len in caller side is not changed. To fix this, this patch partially reverts that commit, and adds alignment code in caller side. And it also introduces hstate_sizelog() in order to get proper hstate to specified hugepage size. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=56881 [akpm@linux-foundation.org: fix warning when CONFIG_HUGETLB_PAGE=n] Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reported-by: <iceman_dvd@yahoo.com> Cc: Steven Truelove <steven.truelove@utoronto.ca> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Hugh Dickins <hughd@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-05-07 18:38:27 -07:00
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compat_mq.c	ipc: initialize structure memory to zero for compat functions	2010-10-27 18:03:13 -07:00
compat.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
ipc_sysctl.c	ipc: add sysctl to specify desired next object id	2013-01-04 16:11:45 -08:00
ipcns_notifier.c
Makefile	Add generic sys_ipc wrapper	2010-03-12 15:52:32 -08:00
mq_sysctl.c	mqueue: separate mqueue default value from maximum value	2012-05-31 17:49:31 -07:00
mqueue.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2013-03-28 13:43:46 -07:00
msg.c	ipc/msg.c: use list_for_each_entry_[safe] for list traversing	2013-05-01 08:12:58 -07:00
msgutil.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
namespace.c	proc: Split the namespace stuff out into linux/proc_ns.h	2013-05-01 17:29:39 -04:00
sem.c	ipc: simplify rcu_read_lock() in semctl_nolock()	2013-05-04 17:24:59 -07:00
shm.c	hugetlbfs: fix mmap failure in unaligned size request	2013-05-07 18:38:27 -07:00
syscall.c	get rid of union semop in sys_semctl(2) arguments	2013-03-05 15:14:16 -05:00
util.c	ipc_schedule_free() can do vfree() directly now	2013-05-02 08:03:33 -07:00
util.h	ipc,sem: fine grained locking for semtimedop	2013-05-01 08:12:58 -07:00