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Oleg Nesterov 5eaf1a9e23 mm: thp: turn compound_head() into BUG_ON(!PageTail) in get_huge_page_tail() 
get_huge_page_tail()->compound_head() looks confusing.  Every caller
must check PageTail(page), otherwise atomic_inc(&page->_mapcount) is
simply wrong if this page is compound-trans-head.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dave Jones <davej@redhat.com>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-21 16:19:43 -08:00
..
acpi Merge branches 'acpi-pci-pm' and 'acpi-pci-hotplug' 2013-12-31 22:03:37 +01:00
asm-generic Linux 3.13-rc8 2014-01-13 11:44:41 +01:00
clocksource
crypto crypto: scatterwalk - Use sg_chain_ptr on chain entries 2013-12-09 19:58:52 +08:00
drm drm/radeon: 0x9649 is SUMO2 not SUMO 2013-12-23 10:03:41 -05:00
dt-bindings
keys
kvm
linux mm: thp: turn compound_head() into BUG_ON(!PageTail) in get_huge_page_tail() 2014-01-21 16:19:43 -08:00
math-emu
media [media] videobuf2: Add support for file access mode flags for DMABUF exporting 2013-12-09 14:50:50 -02:00
memory
misc
net Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 10:42:08 -08:00
pcmcia
ras
rdma IB/core: const'ify inbuf in struct ib_udata 2013-12-16 10:38:28 -08:00
rxrpc
scsi [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers 2013-11-29 08:48:39 +04:00
sound Merge remote-tracking branch 'asoc/topic/compress' into asoc-next 2014-01-20 11:50:41 +00:00
target target/file: Update hw_max_sectors based on current block_size 2013-12-19 00:18:54 -08:00
trace * Add the functionality to override error reporting agents as some 2013-12-16 14:33:17 +01:00
uapi sound updates for 3.14-rc1 2014-01-21 10:26:23 -08:00
video
xen Nobody has been maintaining xen in ia64 for a long time. 2014-01-20 09:33:40 -08:00
Kbuild