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2008-07-15block: convert pd_special_command to use blk_execute_rqFUJITA Tomonori
pd_special_command uses blk_put_request with struct request on the stack. As a result, blk_put_request needs a hack to catch a NULL request_queue. This converts pd_special_command to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-cd: remove ide_cd_init_rqFUJITA Tomonori
ide_cd_init_rq is not used by ide-cd_ioctl any more. Only cdrom_queue_request_sense use it. This converts cdrom_queue_request_sense to use blk_rq_init directly and removes ide_cd_init_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove ide_init_drive_cmdFUJITA Tomonori
ide_init_drive_cmd just calls blk_rq_init. This converts the users of ide_init_drive_cmd to use blk_rq_init directly and removes ide_init_drive_cmd. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove ide_wait/head_wait path in ide_do_drive_cmdFUJITA Tomonori
Now all the users of ide_do_drive_cmd using ide_wait/head_wait are converted to use blk_execute_rq this removes the ide_wait/head_wait path in ide_do_drive_cmd. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_[head_]wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15block: handle blk_pm_resume_request() requests in blk_execute_rq_nowait()Bartlomiej Zolnierkiewicz
For blk_pm_resume_request() requests (which are used only by IDE subsystem currently) the queue is stopped so we need to call ->request_fn explicitly. Thanks to: - Rafael for reporting/bisecting the bug - Borislav/Rafael for testing the fix This is a preparation for converting IDE to use blk_execute_rq(). Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-tape: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-taskfile: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-floppy: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-disk: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-cd: convert ide_do_drive_cmd path to use blk_execute_rqFUJITA Tomonori
This converts the ide_do_drive_cmd path using ide_wait to use blk_execute_rq. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-cd: convert ide_cd_queue_pc to use blk_execute_rqFUJITA Tomonori
This converts ide_cd_queue_pc to use blk_execute_rq, necessitating changing the ide_cd_queue_pc prototype into a form that doesn't takes a pointer to request struct. ide_cd_queue_pc works like scsi_execute. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: use __generic_unplug_device() in ide_do_drive_cmd() (take 2)Bartlomiej Zolnierkiewicz
* Call __elv_add_request() with 'plug' == 1 (so the device will be plugged) and then use __generic_unplug_device() instead of calling ide_do_request() directly. v2: * For blk_pm_resume_request() requests the queue is stopped so we need to call ->request_fn explicitly. Thanks to: - Rafael for reporting/bisecting the bug - Borislav/Rafael for testing the fix This is a preparation for converting IDE to use blk_execute_rq(). Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: set REQ_PREEMPT request flag in ide_do_drive_cmd() usersBartlomiej Zolnierkiewicz
* Set REQ_PREEMPT request flag in ide_do_drive_cmd() users for ide_preempt and ide_head_wait action types. * Remove setting REQ_PREEMPT from ide_do_drive_cmd(). While at it: * Set 'where' variable outside ide_lock. This is a preparation for converting IDE to use blk_execute_rq(). There should be no functional changes caused by this patch. Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: use get_unaligned_* helpersHarvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide-tape: use clamp_t() rather than nested min_t()/max_t()Harvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: eliminate FIT() macroHarvey Harrison
Replace the FIT() macro with the kernel-provided clamp_val() macro. FIT was always being called with a member of a struct ide_timing, which are shorts, and constant constraints for the min and max. Thus we can use clamp_val, rather than clamp_t. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: disable drive interrupts in ide_driveid_update()Mikhail Cherkashin
Since ide_driveid_update() uses polling to execute the IDENTIFY DEVICE command but clears nIEN bit in the control register and doesn't mask the IDE interrupt, the latter does happen and lead to the corresponding message to appear: ide0: unexpected interrupt, status=0x58, count=1 when e.g. running hdparm with option -X with a non-PCI IDE driver... Signed-off-by: Mikhail Cherkashin <mcherkashin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15palm_bk3710: fix tRP for UDMA mode 4Mikhail Cherkashin
Fix tRP timing for UDMA mode 4 according to the ATA specification. Signed-off-by: Mikhail Cherkashin <mcherkhashin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-13Linux 2.6.26v2.6.26Linus Torvalds
2008-07-13devcgroup: fix permission check when adding entry to child cgroupLi Zefan
# cat devices.list c 1:3 r # echo 'c 1:3 w' > sub/devices.allow # cat sub/devices.list c 1:3 w As illustrated, the parent group has no write permission to /dev/null, so it's child should not be allowed to add this write permission. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13devcgroup: always show positive major/minor numLi Zefan
# echo "b $((0x7fffffff)):$((0x80000000)) rwm" > devices.allow # cat devices.list b 214748364:-21474836 rwm though a major/minor number of 0x800000000 is meaningless, we should not cast it to a negative value. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13Documentation/HOWTO: correct wrong kernel bugzilla FAQ URLJiri Pirko
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-13Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cpusets, hotplug, scheduler: fix scheduler domain breakage
2008-07-13cpusets, hotplug, scheduler: fix scheduler domain breakageDmitry Adamushko
Commit f18f982ab ("sched: CPU hotplug events must not destroy scheduler domains created by the cpusets") introduced a hotplug-related problem as described below: Upon CPU_DOWN_PREPARE, update_sched_domains() -> detach_destroy_domains(&cpu_online_map) does the following: /* * Force a reinitialization of the sched domains hierarchy. The domains * and groups cannot be updated in place without racing with the balancing * code, so we temporarily attach all running cpus to the NULL domain * which will prevent rebalancing while the sched domains are recalculated. */ The sched-domains should be rebuilt when a CPU_DOWN ops. has been completed, effectively either upon CPU_DEAD{_FROZEN} (upon success) or CPU_DOWN_FAILED{_FROZEN} (upon failure -- restore the things to their initial state). That's what update_sched_domains() also does but only for !CPUSETS case. With f18f982ab, sched-domains' reinitialization is delegated to CPUSETS code: cpuset_handle_cpuhp() -> common_cpu_mem_hotplug_unplug() -> rebuild_sched_domains() Being called for CPU_UP_PREPARE and if its callback is called after update_sched_domains()), it just negates all the work done by update_sched_domains() -- i.e. a soon-to-be-offline cpu is included in the sched-domains and that makes it visible for the load-balancer while the CPU_DOWN ops. is in progress. __migrate_live_tasks() moves the tasks off a 'dead' cpu (it's already "offline" when this function is called). try_to_wake_up() is called for one of these tasks from another CPU -> the load-balancer (wake_idle()) picks up a "dead" CPU and places the task on it. Then e.g. BUG_ON(rq->nr_running) detects this a bit later -> oops. Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Tested-by: Vegard Nossum <vegard.nossum@gmail.com> Cc: Paul Menage <menage@google.com> Cc: Max Krasnyansky <maxk@qualcomm.com> Cc: Paul Jackson <pj@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: miaox@cn.fujitsu.com Cc: rostedt@goodmis.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-12Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix ldt limit for 64 bit
2008-07-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] bsg: fix oops on remove [SCSI] fusion: default MSI to disabled for SPI and FC controllers [SCSI] ipr: Fix HDIO_GET_IDENTITY oops for SATA devices [SCSI] mptspi: fix oops in mptspi_dv_renegotiate_work() [SCSI] erase invalid data returned by device
2008-07-12cifs: fix wksidarr declaration to be big-endian friendlyJeff Layton
The current definition of wksidarr works fine on little endian arches (since cpu_to_le32 is a no-op there), but on big-endian arches, it fails to compile with this error: error: braced-group within expression allowed only inside a function The problem is that this static declaration has cpu_to_le32 embedded within it, and that expands into a function macro. We need to use __constant_cpu_to_le32() instead. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Steven French <sfrench@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12cifs: fix inode leak in cifs_get_inode_info_unixJeff Layton
Try this: mount a share with unix extensions create a file on it umount the share You'll get the following message in the ring buffer: VFS: Busy inodes after unmount of cifs. Self-destruct in 5 seconds. Have a nice day... ...the problem is that cifs_get_inode_info_unix is creating and hashing a new inode even when it's going to return error anyway. The first lookup when creating a file returns an error so we end up leaking this inode before we do the actual create. This appears to be a regression caused by commit 0e4bbde94fdc33f5b3d793166b21bf768ca3e098. The following patch seems to fix it for me, and fixes a minor formatting nit as well. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12frv: fix irqs_disabled() to return an int, not an unsigned longDavid Howells
Fix FRV irqs_disabled() to return an int, not an unsigned long to avoid this warning: kernel/sched.c: In function '__might_sleep': kernel/sched.c:8198: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12OProfile kernel maintainership changesRobert Richter
Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Cc: Maynard Johnson <maynardj@us.ibm.com> Cc: Richard Purdie <rpurdie@openedhand.com> Cc: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com> Cc: Jason Yeh <jason.yeh@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12rtc-pcf8563: add chip idJon Smirl
Add the rtc8564 chip entry Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12rtc-fm3130: fix chip namingAlessandro Zummo
Fix chip naming from fm3031-rtc to fm3031 Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Sergey Lapin <slapin@ossfans.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12ov7670: clean up ov7670_read semanticsAndres Salomon
Cortland Setlow pointed out a bug in ov7670.c where the result from ov7670_read() was just being checked for !0, rather than <0. This made me realize that ov7670_read's semantics were rather confusing; it both fills in 'value' with the result, and returns it. This is goes against general kernel convention; so rather than fixing callers, let's fix the function. This makes ov7670_read return <0 in the case of an error, and 0 upon success. Thus, code like: res = ov7670_read(...); if (!res) goto error; ..will work properly. Signed-off-by: Cortland Setlow <csetlow@tower-research.com> Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Jonathan Corbet <corbet@lwn.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12serial8250: sanity check nr_uarts on all paths.Eric W. Biederman
I had 8250.nr_uarts=16 in the boot line of a test kernel and I had a weird mysterious crash in sysfs. After taking an in-depth look I realized that CONFIG_SERIAL_8250_NR_UARTS was set to 4 and I was walking off the end of the serial8250_ports array. Ouch!!! Don't let this happen to someone else. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Alan Cox <alan@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12fbdev: bugfix for multiprocess defioJaya Kumar
This patch is a bugfix for how defio handles multiple processes manipulating the same framebuffer. Thanks to Bernard Blackham for identifying this bug. It occurs when two applications mmap the same framebuffer and concurrently write to the same page. Normally, this doesn't occur since only a single process mmaps the framebuffer. The symptom of the bug is that the mapping applications will hang. The cause is that defio incorrectly tries to add the same page twice to the pagelist. The solution I have is to walk the pagelist and check for a duplicate before adding. Since I needed to walk the pagelist, I now also keep the pagelist in sorted order. Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Bernard Blackham <bernard@largestprime.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12drivers/isdn/i4l/isdn_common.c fix small resource leakDarren Jenkins
Coverity CID: 1356 RESOURCE_LEAK I found a very old patch for this that was Acked but did not get applied https://lists.linux-foundation.org/pipermail/kernel-janitors/2006-September/016362.html There looks to be a small leak in isdn_writebuf_stub() in isdn_common.c, when copy_from_user() returns an un-copied data length (length != 0). The below patch should be a minimally invasive fix. Signed-off-by: Darren Jenkins <darrenrjenkins@gmailcom> Acked-by: Karsten Keil <kkeil@suse.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12drivers/char/pcmcia/ipwireless/hardware.c fix resource leakDarren Jenkins
Coverity CID: 2172 RESOURCE_LEAK When pool_allocate() tries to enlarge a packet, if it can not allocate enough memory, it returns NULL without first freeing the old packet. This patch just frees the packet first. Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-12[SCSI] bsg: fix oops on removeJames Bottomley
If you do a modremove of any sas driver, you run into an oops on shutdown when the host is removed (coming from the host bsg device). The root cause seems to be that there's a use after free of the bsg_class_device: In bsg_kref_release_function, this is used (to do a put_device(bcg->parent) after bcg->release has been called. In sas (and possibly many other things) bcd->release frees the queue which contains the bsg_class_device, so we get a put_device on unreferenced memory. Fix this by taking a copy of the pointer to the parent before releasing bsg. Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-12[SCSI] fusion: default MSI to disabled for SPI and FC controllersJames Bottomley
There's a fault on the FC controllers that makes them not respond correctly to MSI. The SPI controllers are fine, but are likely to be onboard on older motherboards which don't handle MSI correctly, so default both these cases to disabled. Enable by setting the module parameter mpt_msi_enable=1. For the SAS case, enable MSI by default, but it can be disabled by setting the module parameter mpt_msi_enable=0. Cc: "Prakash, Sathya" <sathya.prakash@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-12x86: fix ldt limit for 64 bitMichael Karcher
Fix size of LDT entries. On x86-64, ldt_desc is a double-sized descriptor. Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [PATCH] IPMI: return correct value from ipmi_write
2008-07-11[PATCH] IPMI: return correct value from ipmi_writeMark Rustad
This patch corrects the handling of write operations to the IPMI watchdog to work as intended by returning the number of characters actually processed. Without this patch, an "echo V >/dev/watchdog" enables the watchdog if IPMI is providing the watchdog function. Signed-off-by: Mark Rustad <MRustad@gmail.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2008-07-11[SCSI] ipr: Fix HDIO_GET_IDENTITY oops for SATA devicesBrian King
Currently, ipr does not support HDIO_GET_IDENTITY to SATA devices. An oops occurs if userspace attempts to send the command. Since hald issues the command, ensure we fail the ioctl in ipr. This is a temporary solution to the oops. Once the ipr libata EH conversion is upstream, ipr will fully support HDIO_GET_IDENTITY. Tested-by: Milton Miller <miltonm@bga.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-11Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata-acpi: don't call sleeping function from invalid context Added Targa Visionary 1000 IDE adapter to pata_sis.c libata-acpi: filter out DIPM enable
2008-07-11Fix reference counting race on log buffersDave Chinner
When we release the iclog, we do an atomic_dec_and_lock to determine if we are the last reference and need to trigger update of log headers and writeout. However, in xlog_state_get_iclog_space() we also need to check if we have the last reference count there. If we do, we release the log buffer, otherwise we decrement the reference count. But the compare and decrement in xlog_state_get_iclog_space() is not atomic, so both places can see a reference count of 2 and neither will release the iclog. That leads to a filesystem hang. Close the race by replacing the atomic_read() and atomic_dec() pair with atomic_add_unless() to ensure that they are executed atomically. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Tim Shimmin <tes@sgi.com> Tested-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-11libata-acpi: don't call sleeping function from invalid contextZhang Rui
The problem is introduced by commit 664d080c41463570b95717b5ad86e79dc1be0877. acpi_evaluate_integer is a sleeping function, and it should not be called with spin_lock_irqsave. https://bugzilla.redhat.com/show_bug.cgi?id=451399 Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-11Added Targa Visionary 1000 IDE adapter to pata_sis.cKai Krakow
This enables short 40-wire detection for my laptop thus enabling UDMA/100. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-11libata-acpi: filter out DIPM enableTejun Heo
Some BIOSen enable DIPM via _GTF which causes command timeouts under certain configuration. This didn't occur on 2.6.25 because 2.6.25 defaulted to SRST, so _GTF wasn't executed during boot probe, so ahci host reset disabled DIPM and as _GTF wasn't executed after SRST, DIPM wasn't enabled. On 2.6.26, hardreset is used during probe and after probe _GTF is executed enabling DIPM and thus the failures. This patch could theoretically disable DIPM on machines which used to have it enabled on 2.6.25 but AFAIK ahci is currently the only driver which uses SATA ACPI hierarchy (_SDD) and as the host reset would have always disabled DIPM, this shouldn't happen. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-07-10rtc: fix reported IRQ rate for when HPET is enabledPaul Gortmaker
The IRQ rate reported back by the RTC is incorrect when HPET is enabled. Newer hardware that has HPET to emulate the legacy RTC device gets this value wrong since after it sets the rate, it returns before setting the variable used to report the IRQ rate back to users of the device -- so the set rate and the reported rate get out of sync. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Brownell <david-b@pacbell.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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