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linux-stable/arch/s390
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Michael Holzheu bbac1c9488 s390/bpf: fix stack allocation 
On s390x we have to provide 160 bytes stack space before we can call
the next function. From the 160 bytes that we got from the previous
function we only use 11 * 8 bytes and have 160 - 11 * 8 bytes left.
Currently for BPF we allocate additional 160 - 11 * 8 bytes for the
next function. This is wrong because then the next function only gets:

 (160 - 11 * 8) + (160 - 11 * 8) = 2 * 72 = 144 bytes

Fix this and allocate enough memory for the next function.

Fixes: 0546231057 ("s390/bpf: Add s390x eBPF JIT compiler backend")
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-03 19:31:39 -07:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390: remove "64" suffix from a couple of files 2015-03-25 11:49:34 +01:00
configs s390: update default configuration 2015-01-22 12:16:09 +01:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-05-22 14:26:36 -07:00
hypfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
include s390/mm: correct return value of pmd_pfn 2015-05-19 10:35:09 +02:00
kernel Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc 2015-04-15 13:53:55 -07:00
kvm This mostly includes the PPC changes for 4.1, which this time cover 2015-04-26 13:06:22 -07:00
lib s390: remove "64" suffix from mem64.S and swsusp_asm64.S 2015-03-25 11:49:51 +01:00
mm s390/mm: change swap pte encoding and pgtable cleanup 2015-04-23 16:56:20 +02:00
net s390/bpf: fix stack allocation 2015-06-03 19:31:39 -07:00
oprofile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2015-04-20 10:15:33 -07:00
defconfig s390: update default configuration 2015-01-22 12:16:09 +01:00
Kbuild s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
Kconfig s390/bpf: add dependency to z196 features 2015-04-23 16:55:50 +02:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390: remove 31 bit support 2015-03-25 11:49:33 +01:00