- 26 Jan, 2008 36 commits
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Jan Glauber authored
Move s390 crypto Kconfig options to drivers/crypto/Kconfig to have all hardware crypto devices in one place. This also makes messing up the kernel source tree easier for some people. Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Forgot to remove this when removing the appldata binary sysctls. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
It caused only a lot of confusion. From now on cpu hotplug of up to NR_CPUS will work by default. If somebody wants to limit that then the possible_cpus parameter can be used. Signed-off-by:
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Heiko Carstens authored
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Heiko Carstens authored
Used to contain the address of the holder of the lock. But since the spinlock code is not inlined anymore all locks contain the same address anyway. And since in addtition nobody complained about that for ages its obviously unused. So remove it. Signed-off-by:
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Heiko Carstens authored
Align everything to MAX_ORDER so we can get rid of the extra checks. Signed-off-by:
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Heiko Carstens authored
Also print PREEMPT and/or SMP if the kernel was configured that way. Makes s390 look a bit more like other architectures. Signed-off-by:
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Christian Borntraeger authored
Currently the vmalloc area starts at a dynamic address depending on the memory size. There was also an 8MB security hole after the physical memory to catch out-of-bounds accesses. We can simplify the code by putting the vmalloc area explicitely at the top of the kernel mapping and setting the vmalloc size to a fixed value of 128MB/128GB for 31bit/64bit systems. Part of the vmalloc area will be used for the vmem_map. This leaves an area of 96MB/1GB for normal vmalloc allocations. Signed-off-by:
Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
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Martin Schwidefsky authored
The clear-by-asce operation of the idte instruction gets an asce (address-space-control-element) as argument to specify which TLBs need to get flushed. The current code passes a plain pointer to the start of the pgd without the additional bits which would make the pointer an asce. The current machines don't mind the difference but a future model might want to use the designation type control bits in the asce as a filter for the TLBs to flush. Signed-off-by: -
Heiko Carstens authored
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Heiko Carstens authored
Add a new interface so that cpus can be put into standby state and configured state. Only offline cpus can be put into standby state or configured state. For that the new percpu sysfs attribute "configure" must be used. To put a cpu in standby state a "0" must be written to the attribute. In order to switch it into configured state a "1" must be written to the attribute. Only cpus in configured state can be brought online. In addition this patch introduces a static mapping of physical to logical cpus. As a result only the sysfs directories of present cpus will be created. To scan for new cpus the new sysfs attribute "rescan" must be used. Writing to /sys/devices/system/cpu/rescan will trigger a rescan of cpus and will create directories for new cpus. On IPL only configured cpus will be used. And on reboot/shutdown all cpus will remain in their current state (configured/standby). Signed-off-by:
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Michael Ernst authored
Signed-off-by:
Michael Ernst <mernst@de.ibm.com> Signed-off-by:
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Ursula Braun authored
Current definition of QDIO_ACTIVATE_TIMEOUT results in value 0. Thus it may cause endless wait in function qdio_activate(). Signed-off-by:
Ursula Braun <braunu@de.ibm.com> Signed-off-by:
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Sebastian Ott authored
Signed-off-by:
Sebastian Ott <sebott@de.ibm.com> Signed-off-by:
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Peter Oberparleiter authored
Add a timed recovery procedure to reactivate ccw devices in cases where HW/VM events are not sufficient to allow for proper recovery of reappearing channel paths. Signed-off-by:
Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by:
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Michael Ernst authored
Allocated kernel memory for locks is not freed in case of subchannel found to be invalid. Signed-off-by:
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Cornelia Huck authored
There are two ways for a ccwgroup device to be unregistered: Via the ungroup attribute, or when on of the slave devices is killed by a machine check. As we have to unregister the ccwgroup device via a callback, we'll now have to check whether it hasn't been already unregistered because of a machine check. Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Make sure pending timers are always deleted, even if we don't go through ccw_device_done(). Signed-off-by:
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Peter Oberparleiter authored
Minimize calls to cpu intensive function get_subchannel_by_schid() by introducing function for_each_subchannel_staged() which temporarily caches the information about registered subchannels in a bitmap. Signed-off-by:
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Cornelia Huck authored
Set the owner field in the embedded struct device_driver to the value provided in the {css,ccw,ccwgroup}_driver. Signed-off-by: -
Cornelia Huck authored
Also define helpers sch_{g,s}et_cdev() to make the intention more clear. Signed-off-by: -
Cornelia Huck authored
Some fields may be !0 only for I/O subchannels. Add some checks where required. Also adapt cio_enable_subchannel() to make the caller specify the intparm, which makes it more generic. Signed-off-by:
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Peter Oberparleiter authored
From: Cornelia Huck <cornelia.huck@de.ibm.com> Change the adapter interrupt interface in order to allow multiple adapter interrupt handlers to be registered. Indicators are now allocated by cio instead of the device driver. The qdio parts have been Acked-by:
Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by:
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Cornelia Huck authored
Introduce a private pointer in struct subchannel to store per-subchannel type data (cannot use dev->priv since this is already used for something else). Create a new header io_sch.h for I/O subchannel specific structures and instructions. Signed-off-by:
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Cornelia Huck authored
Cleanup cio_debug.h. Also make CIO_DEBUG add the "cio:" prefix to the printk string so that it isn't needed for the debug feature. Fix outdated comments for cio_debug_init() and clean it up. Enlarge cio_crw to the same size as cio_msg so we may actually find some relevant information there. Signed-off-by:
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Cornelia Huck authored
Add wrapper functions for driver_register and driver_unregister so that css drivers don't need to muck with struct device_driver directly. Signed-off-by:
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Cornelia Huck authored
sch->driver needs to be reset to NULL on failed probe and after remove. We also need to check for sch->driver on shutdown. Signed-off-by:
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Cornelia Huck authored
Make all callbacks in css_driver take a struct subchannel (and not a struct device). Signed-off-by:
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Cornelia Huck authored
- Introduce to_cssdriver. - Use to_xxx instead of container_of where possible. Signed-off-by:
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Sebastian Ott authored
Information about a ccw device will be dumped in case of a ccw timeout. This can be enabled with the kernel parameter ccw_timeout_log. Signed-off-by:
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Sebastian Ott authored
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits) [SCSI] usbstorage: use last_sector_bug flag universally [SCSI] libsas: abstract STP task status into a function [SCSI] ultrastor: clean up inline asm warnings [SCSI] aic7xxx: fix firmware build [SCSI] aacraid: fib context lock for management ioctls [SCSI] ch: remove forward declarations [SCSI] ch: fix device minor number management bug [SCSI] ch: handle class_device_create failure properly [SCSI] NCR5380: fix section mismatch [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices [SCSI] IB/iSER: add logical unit reset support [SCSI] don't use __GFP_DMA for sense buffers if not required [SCSI] use dynamically allocated sense buffer [SCSI] scsi.h: add macro for enclosure bit of inquiry data [SCSI] sd: add fix for devices with last sector access problems [SCSI] fix pcmcia compile problem [SCSI] aacraid: add Voodoo Lite class of cards. [SCSI] aacraid: add new driver features flags [SCSI] qla2xxx: Update version number to 8.02.00-k7. [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is m
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git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2Linus Torvalds authored
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (31 commits) ocfs2: clean up bh null checks ocfs2: document access rules for blocked_lock_list configfs: file.c fix possible recursive locking configfs: dir.c fix possible recursive locking configfs: Remove EXPERIMENTAL ocfs2: bump version number ocfs2/dlm: Clear joining_node on hearbeat node down ocfs2: convert byte order of constant instead of variable ocfs2: Update default cluster timeouts ocfs2: printf fixes ocfs2: Use generic_file_llseek ocfs2: Safer read_inline_data() ocfs2: Silence false lockdep warnings [PATCH 2/2] ocfs2: cluster aware flock() [PATCH 1/2] ocfs2: add flock lock type ocfs2: Local alloc window size changeable via mount option ocfs2: Support commit= mount option ocfs2: Add missing permission checks [PATCH 2/2] ocfs2: Implement group add for online resize [PATCH 1/2] ocfs2: Add group extend for online resize ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-devLinus Torvalds authored
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (67 commits) fix drivers/ata/sata_fsl.c double-decl [libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof() pata_legacy: Merge winbond support ata_generic: Cenatek support pata_winbond: error return pata_serverworks: Fix cable types and cosmetics pata_mpc52xx: remove un-needed assignment libata: fix off-by-one in error categorization ahci: factor out AHCI enabling and enable AHCI before reading CAP ata_piix: implement SIDPR SCR access ata_piix: convert to prepare - activate initialization libata: factor out ata_pci_activate_sff_host() from ata_pci_one() [libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof() pata_legacy: resychronize with upstream changes and resubmit [libata] pata_legacy: typo fix [libata] pata_winbond: update for new ->data_xfer hook pata_pcmcia: convert to new data_xfer prototype libata annotations and fixes libata: use dev_driver_string() instead of "libata" in libata-sff.c ata_piix: kill unused constants and flags ...
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- 25 Jan, 2008 4 commits
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Mark Fasheh authored
If we know a buffer_head is non-null, then brelse() is unnecessary and put_bh() can be used instead. Also, an explicit check for NULL is unnecessary when using brelse(). This patch only covers buffer_head_io.c and resize.c, which have recently added code which exhibits this problem. Signed-off-by:Mark Fasheh <mark.fasheh@oracle.com>
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Mark Fasheh authored
ocfs2_super->blocked_lock_list and ocfs2_super->blocked_lock_count have some usage restrictions which aren't immediately obvious to anyone reading the code. It's a good idea to document this so that we avoid making costly mistakes in the future. Signed-off-by: -
Joonwoo Park authored
configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #145 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40c9a9e>] configfs_add_file+0x2e/0x70 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #145 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fda88>] mutex_lock_nested+0x98/0x2e0 [<c40c9a9e>] configfs_add_file+0x2e/0x70 [<c40c9b0c>] configfs_create_file+0x2c/0x40 [<c40ca639>] configfs_attach_item+0x139/0x220 [<c40ca734>] configfs_attach_group+0x14/0x140 [<c40ca7e9>] configfs_attach_group+0xc9/0x140 [<c40ca9f6>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by:Joonwoo Park <joonwpark81@gmail.com> Signed-off-by:
Joel Becker <joel.becker@oracle.com> Signed-off-by:
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Joonwoo Park authored
configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #141 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca76f>] configfs_attach_group+0x4f/0x190 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #141 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fdad8>] mutex_lock_nested+0x98/0x2e0 [<c40ca76f>] configfs_attach_group+0x4f/0x190 [<c40caa46>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by:
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