- 26 6月, 2013 1 次提交
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由 Andy Shevchenko 提交于
If someone is interested to dump something they may consider to use print_hex_dump() or print_hex_dump_bytes() kernel helpers. Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: NUrsula Braun <ursula.braun@de.ibm.com> Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 6月, 2013 1 次提交
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由 Benjamin Poirier 提交于
fixes a race condition between concurrent initializations of netiucv devices that try to use the same name. sysfs: cannot create duplicate filename '/devices/iucv/netiucv2' [...] Call Trace: ([<00000000002edea4>] sysfs_add_one+0xb0/0xdc) [<00000000002eecd4>] create_dir+0x80/0xfc [<00000000002eee38>] sysfs_create_dir+0xe8/0x118 [<00000000003835a8>] kobject_add_internal+0x120/0x2d0 [<00000000003839d6>] kobject_add+0x62/0x9c [<00000000003d9564>] device_add+0xcc/0x510 [<000003e00212c7b4>] netiucv_register_device+0xc0/0x1ec [netiucv] Signed-off-by: NBenjamin Poirier <bpoirier@suse.de> Tested-by: NUrsula Braun <braunu@de.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 31 5月, 2013 1 次提交
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由 Stefan Weinhuber 提交于
When a path is gone and dasd_generic_path_event is called with a PE_PATH_GONE event, we must assume that any I/O request on that subchannel is still running. This is unlike the dasd_generic_notify handler and the CIO_NO_PATH event, which implies that the subchannel has been cleared. If dasd_generic_path_event finds that the path has been the last usable path, it must not call dasd_generic_last_path_gone (which would reset the state of running requests), but just set the DASD_STOPPED_DC_WAIT bit. Signed-off-by: NStefan Weinhuber <wein@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 17 5月, 2013 1 次提交
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由 Christian Borntraeger 提交于
xpram is a memory technology. Lets mark that as non-rotational. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 15 5月, 2013 1 次提交
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由 Peter Oberparleiter 提交于
Add new attributes "chid" and "chid_external" to the channel-path sysfs directory. These attributes contain information related to the channel-ID of the channel-path. Reviewed-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 07 5月, 2013 1 次提交
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由 Al Viro 提交于
The value passed is 0 in all but "it can never happen" cases (and those only in a couple of drivers) *and* it would've been lost on the way out anyway, even if something tried to pass something meaningful. Just don't bother. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 02 5月, 2013 7 次提交
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由 Ingo Tuchscherer 提交于
The bus rescan process was called simultaneously on every device failure. This finally leads into race conditions (double device add/remove actions). This patch protects the rescan area by mutual exclusion and improves ap_config_timer handling Signed-off-by: NIngo Tuchscherer <ingo.tuchscherer@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
Given that the memory block size is always larger or equal to the memory increment size there is no need for a usecount anymore. Each memory increment belongs to exactly one memory block. So get rid of the usecount. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
The current memory detection loop will detect all present memory of a machine. This is true even if the user specified the "mem=" parameter on the kernel command line. This can be a problem since the memory detection may cause a fully populated host page table for the guest, even for those parts of the memory that the guest will never use afterwards. So fix this and only detect memory up to a user supplied "mem=" limit if specified. Reported-by: NMichael Johanssen <johanssn@de.ibm.com> Reviewed-by: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Nick Wang 提交于
The current location for mapping Virtio devices does not take into consideration of the standby memory. This causes the failure of mapping standby memory since the location for the mapping is already taken by the Virtio devices. To fix the problem, we move the location to beyond the end of standby memory. Signed-off-by: NNick Wang <jfwang@us.ibm.com> Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Heiko Carstens 提交于
The zcore device driver makes use of the global visible real_memory_size variable with its odd semantics. Since the zcore device driver already has code in place which calculates the memory size at module load time, use that code to calculate the current memory end value. One user less of the odd real_memory_size variable. Reviewed-by: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Provide a 'condev' keyword to cio_ignore to (un)ignore the CCW console device. Reviewed-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Provide an 'ipldev' keyword to cio_ignore to (un)ignore the CCW or FCP based boot device. Reviewed-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 26 4月, 2013 4 次提交
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由 Sebastian Ott 提交于
If the allocation of a single request fails the already allocated requests will not be freed. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Allow 0 and powers of 2 between 2 and 128 for write_cluster_size. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
When we fetch an interrupt on the CCW console using tsch (via ccw_device_wait_idle formerly known as wait_cons_dev) we increment the irq count for the affected interruption class but it is not accounted as an IO interrupt. This is broken since commit b603d258 "s390: remove superfluous tpi from wait_cons_dev" Fix it so that the sum of the individual interrupts per class matches the number of IO interrupts again. Reported-by: NGerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
In case a machine supports memory hotplug all active memory increments present at IPL time have been initialized with a "usecount" of 1. This is wrong if the memory increment size is larger than the memory section size of the memory hotplug code. If that is the case the usecount must be initialized with the number of memory sections that fit into one memory increment. Otherwise it is possible to put a memory increment into standby state even if there are still active sections. Afterwards addressing exceptions might happen which cause the kernel to panic. However even worse, if a memory increment was put into standby state and afterwards into active state again, it's contents would have been zeroed, leading to memory corruption. This was only an issue for machines that support standby memory and have at least 256GB memory. This is broken since commit fdb1bb15 "[S390] sclp/memory hotplug: fix initial usecount of increments". Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Reviewed-by: NGerald Schaefer <gerald.schaefer@de.ibm.com> Cc: stable@vger.kernel.org # 2.6.39+ Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 23 4月, 2013 4 次提交
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由 Michael Holzheu 提交于
Currently always one page is copied to a user buffer for the last HSA block in memcpy_hsa(). Now the correct length is used. Signed-off-by: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Stefan Raspl 提交于
qeth_hdr_chk_and_bounce() can possibly shift the skb->data pointer. However, the existing code didn't update the hdr pointer, which should point to skb->data, accordingly. Symptoms of this issue are sporadic recoveries. Signed-off-by: NStefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Raspl 提交于
remove unused variable Signed-off-by: NStefan Raspl <raspl@linux.vnet.ibm.com> Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Zhang Yanfei 提交于
remove cast for kzalloc return value. Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 4月, 2013 1 次提交
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由 Patrick McHardy 提交于
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_add_vlan_mc': >> drivers/s390/net/qeth_l3_main.c:1662:3: error: too few arguments to function '__vlan_find_dev_deep' include/linux/if_vlan.h:88:27: note: declared here drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_add_vlan_mc6': >> drivers/s390/net/qeth_l3_main.c:1723:3: error: too few arguments to function '__vlan_find_dev_deep' include/linux/if_vlan.h:88:27: note: declared here drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_free_vlan_addresses4': >> drivers/s390/net/qeth_l3_main.c:1767:2: error: too few arguments to function '__vlan_find_dev_deep' include/linux/if_vlan.h:88:27: note: declared here drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_free_vlan_addresses6': >> drivers/s390/net/qeth_l3_main.c:1797:2: error: too few arguments to function '__vlan_find_dev_deep' include/linux/if_vlan.h:88:27: note: declared here drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_process_inbound_buffer': >> drivers/s390/net/qeth_l3_main.c:1980:6: error: too few arguments to function '__vlan_hwaccel_put_tag' include/linux/if_vlan.h:234:31: note: declared here drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_verify_vlan_dev': >> drivers/s390/net/qeth_l3_main.c:2089:3: error: too few arguments to function '__vlan_find_dev_deep' include/linux/if_vlan.h:88:27: note: declared here Reported-by: Nkbuild test robot <fengguang.wu@intel.com> Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 4月, 2013 2 次提交
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由 Patrick McHardy 提交于
Change the rx_{add,kill}_vid callbacks to take a protocol argument in preparation of 802.1ad support. The protocol argument used so far is always htons(ETH_P_8021Q). Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
Rename the hardware VLAN acceleration features to include "CTAG" to indicate that they only support CTAGs. Follow up patches will introduce 802.1ad server provider tagging (STAGs) and require the distinction for hardware not supporting acclerating both. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 4月, 2013 16 次提交
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由 Stefan Haberland 提交于
If too many ccw requests are pre-build before a suspend/resume cycle the device might not get enough memory to do path verification during resume. Requeue requests to the block device request queue on suspend and free pre-build ccw requests. Signed-off-by: NStefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Stefan Haberland 提交于
Reorganize format IO requests and enable usage of PAV. Signed-off-by: NStefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
cio_validate_subchannel is used to do some basic checks to find out if it's worth to further investigate a subchannel. Move the allocation and initialization of the subchannels locks to css_alloc_subchannel. Clean up the functions involved while at it. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Via ccw_device_init_count we keep track of how many devices are in asynchronous device recognition/initialization. For early devices this variable was not only used prior to its initialization but used incorrectly (incremented but never decremented). Fix this by using static initialization for this variable (and friends), make them visible to device.c only, and decrement the counter after recognition of early devices is finished. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Make css_probe_device static and remove an unimplemented prototype. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Use cio_register_early_subchannels to register early subchannels which are already in use. Call this function before we do the actual subchannel scanning loop. This helps us to get rid of some more special cases regarding the console subchannel. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Remove the static console ccw device (and friends) and use dynamic allocation for these structures. With this change the console device is treated (mostly) like any other ccw device and we can remove some special cases. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Remove the static console subchannel (and friends) and use dynamic allocation for these structures. With this change the console subchanel is treated (mostly) like any other subchannel and we can remove some special cases. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
Split the subchannel registration in device_initialize and device_add and move the initialization part inside the allocation function. With this change we can use refcounting during the complete lifespan of a subchannel which is important for devices where we do the actually registration at a later time. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
force_console is used to wake up the CCW based console device to print a panic message in case something goes wrong in a suspend or resume cycle. Stop using the static console_subchannel and add a parameter to this function to specify which ccw device we have to wake up. Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Sebastian Ott 提交于
wait_cons_dev is used to busy wait for an interrupt on the console ccw device. Stop using the static console_subchannel and add a parameter to this function to specify on which ccw device/subchannel we have to do the polling. While at it rename the function to ccw_device_wait_idle and move it to device.c Reviewed-by: NPeter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Akinobu Mita 提交于
Use BITS_TO_LONGS() instead of __BITOPS_WORDS() that is considered to be private macro in asm/bitops.h for s390. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Zhang Yanfei 提交于
remove cast for kzalloc return value. Signed-off-by: NZhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Peter Oberparleiter 提交于
Make use of the stored copy of format 1 channel-path data instead of querying the information every time the corresponding function is called. Reviewed-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Peter Oberparleiter 提交于
Collect format 1 channel-path description data for each CHPID and update the information in one place. Reviewed-by: NSebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Syam Sidhardhan 提交于
kfree on NULL pointer is a no-op. Signed-off-by: NSyam Sidhardhan <s.syam@samsung.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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