Wu Fengguang 3310225dfc lib: proportion: lower PROP_MAX_SHIFT to 32 on 64-bit kernel ... PROP_MAX_SHIFT should be set to <=32 on 64-bit box. This fixes two bugs in the below lines of bdi_dirty_limit(): bdi_dirty *= numerator; do_div(bdi_dirty, denominator); 1) divide error: do_div() only uses the lower 32 bit of the denominator, which may trimmed to be 0 when PROP_MAX_SHIFT > 32. 2) overflow: (bdi_dirty * numerator) could easily overflow if numerator used up to 48 bits, leaving only 16 bits to bdi_dirty Cc: <stable@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Reported-by: Ilya Tumaykin <librarian_rus@yahoo.com> Tested-by: Ilya Tumaykin <librarian_rus@yahoo.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>		2012-02-01 16:53:46 +08:00
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acpi	Merge branches 'atomicio-apei', 'hotplug', 'sony-nvs-nosave' and 'thermal-netlink' into release	2012-01-23 19:47:06 -05:00
asm-generic	Merge branch 'for-next' of git://git.infradead.org/users/dhowells/linux-headers	2012-01-14 18:03:30 -08:00
crypto
drm	drm: Fix authentication kernel crash	2012-01-25 09:27:45 +00:00
keys	keys: add a "logon" key type	2012-01-17 22:39:40 -06:00
linux	lib: proportion: lower PROP_MAX_SHIFT to 32 on 64-bit kernel	2012-02-01 16:53:46 +08:00
math-emu
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-01-18 12:53:54 -08:00
misc
mtd	mtd: document that MEMWRITE ioctl is NAND-specific	2012-01-09 18:18:36 +00:00
net	net/tcp: Fix tcp memory limits initialization when !CONFIG_SYSCTL	2012-01-30 12:41:06 -05:00
pcmcia
rdma	rdma/core: Fix sparse warnings	2012-01-04 09:17:45 -08:00
rxrpc
scsi	[SCSI] libfc: Declare local functions static	2012-01-16 12:45:48 +04:00
sound	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound	2012-01-12 08:00:30 -08:00
target	target: Set additional sense length field in sense data	2011-12-16 06:29:04 +00:00
trace	writeback: fix NULL bdi->dev in trace writeback_single_inode	2012-02-01 16:53:40 +08:00
video	Merge branch 'for-next' of git://git.infradead.org/users/dhowells/linux-headers	2012-01-14 18:03:30 -08:00
xen	Merge branch 'for-3.3/drivers' of git://git.kernel.dk/linux-block	2012-01-15 12:48:41 -08:00
Kbuild