kernel/linux.git/drivers/s390/block, branch v4.11.5

s390/dasd: fix spelling mistake: "supportet" -> "supported"

2017-02-23T12:01:20+00:00

trivial fix to spelling mistake in literal string Signed-off-by: Colin Ian King Signed-off-by: Martin Schwidefsky

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2017-02-22T18:20:04+00:00

Pull s390 updates from Martin Schwidefsky: - New entropy generation for the pseudo random number generator. - Early boot printk output via sclp to help debug crashes on boot. This needs to be enabled with a kernel parameter. - Add proper no-execute support with a bit in the page table entry. - Bug fixes and cleanups. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (65 commits) s390/syscall: fix single stepped system calls s390/zcrypt: make ap_bus explicitly non-modular s390/zcrypt: Removed unneeded debug feature directory creation. s390: add missing "do {} while (0)" loop constructs to multiline macros s390/mm: add cond_resched call to kernel page table dumper s390: get rid of MACHINE_HAS_PFMF and MACHINE_HAS_HPAGE s390/mm: make memory_block_size_bytes available for !MEMORY_HOTPLUG s390: replace ACCESS_ONCE with READ_ONCE s390: Audit and remove any remaining unnecessary uses of module.h s390: mm: Audit and remove any unnecessary uses of module.h s390: kernel: Audit and remove any unnecessary uses of module.h s390/kdump: Use "LINUX" ELF note name instead of "CORE" s390: add no-execute support s390: report new vector facilities s390: use correct input data address for setup_randomness s390/sclp: get rid of common response code handling s390/sclp: don't add new lines to each printed string s390/sclp: make early sclp code readable s390/sclp: disable early sclp code as soon as the base sclp driver is active s390/sclp: move early printk code to drivers ...

s390/dcssblk: fix device size calculation in dcssblk_direct_access()

2017-02-03T12:50:17+00:00

Since commit dd22f551 "block: Change direct_access calling convention", the device size calculation in dcssblk_direct_access() is off-by-one. This results in bdev_direct_access() always returning -ENXIO because the returned value is not page aligned. Fix this by adding 1 to the dev_sz calculation. Fixes: dd22f551 ("block: Change direct_access calling convention") Cc: # 4.0+ Signed-off-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky

scm_blk: remove unneeded REQ_TYPE_FS check

2017-01-31T20:59:59+00:00

Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

s390/dasd: correct inconsistent indenting

2017-01-31T09:47:33+00:00

Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky

s390/dasd: check blockdevice pointer before trying to sync blockdevice

2017-01-31T09:47:25+00:00

If safe offline is called for a DASD alias device a null pointer is passed to fsync_bdev. So check for existence of the blockdevice before calling fsync_bdev. Should not be a real world problem since safe offline for an alias device does not make sense and fsync_bdev can deal with a NULL pointer which it gets after successful NULL pointer dereferencing on s390. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky

s390/dasd: check for device error pointer within state change interrupts

2017-01-31T09:47:15+00:00

Check if the device pointer is valid. Just a sanity check since we already are in the int handler of the device. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky

s390/dasd: allow 0 for path_threshold attribute

2017-01-31T09:47:08+00:00

Allow 0 as valid input for the path_threshold attribute to deactivate the IFCC/CCC error handling. Signed-off-by: Stefan Haberland Signed-off-by: Martin Schwidefsky

s390/dasd: Improve parameter list parsing

2017-01-31T09:46:32+00:00

The function dasd_busid() still uses simple_strtoul() to convert a string to an integer value. This function is obsolete for quite some time already and should be replaced. The whole parameter parsing semantic still relies somewhat on the fact, that simple_strtoul() parses a string containing literals without complains and just returns the parsed integer value plus the residual string. kstrtoint(), however, would return -EINVAL in such a case. Since we want to get rid of simple_strtoul() and now have a nice dasd[] containing only single elements, we can clean up and simplify a few things. Replace simple_strtoul() with kstrtouint(), improve and simplify the overall parameter parsing by the following: - instead of residual strings return proper error codes - remove dasd_parse_next_element() and decide directly what sort of element is being parsed - if we parse a device or a range of devices, split that element into separate bits with a new function - remove warning about invalid ending as it doesn't apply anymore - annotate all parsing functions and data that can be freed after initialisation with __init and __initdata respectively - clean up bits and pieces while at it Reviewed-by: Stefan Haberland Reviewed-by: Sebastian Ott Signed-off-by: Jan Höppner Signed-off-by: Martin Schwidefsky

s390/dasd: Always store parameter elements in an array

2017-01-31T09:46:24+00:00

When the DASD driver is built into the kernel, the entire comma separated parameter list is stored as one single element in the dasd[] array, opposed to the module build where each element is stored separately in dasd[]. There is no point in doing so. Therefore, store each part of the list as single elements in dasd[] as well when built into the kernel. Also, create a define for the maximum of 256 parameters. Reviewed-by: Stefan Haberland Reviewed-by: Sebastian Ott Signed-off-by: Jan Höppner Signed-off-by: Martin Schwidefsky