twx-linux

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Michael Holzheu 3b21a0b468 s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment

commit 237d6e6884 upstream.

Since commit d86bd1bece ("mm/slub: support left redzone") it is no longer
guaranteed that kmalloc(PAGE_SIZE) returns page aligned memory.

After the above commit we get an error for diag224 because aligned
memory is required. This leads to the following user visible error:

 # mount none -t s390_hypfs /sys/hypervisor/
 mount: unknown filesystem type 's390_hypfs'

 # dmesg | grep hypfs
 hypfs.cccfb8: The hardware system does not provide all functions
               required by hypfs
 hypfs.7a79f0: Initialization of hypfs failed with rc=-61

Fix this problem and use get_free_page() instead of kmalloc() to get
correctly aligned memory.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-11-18 10:48:34 +01:00

appldata

…

boot

s390/boot/decompression: disable floating point in decompressor

2015-09-29 14:45:10 +02:00

configs

s390/defconfig: set SCSI_DH=y

2015-10-01 10:48:36 +02:00

crypto

s390/crypto: provide correct file mode at device register.

2016-09-15 08:27:46 +02:00