* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
compat_ioctl: fix block device compat ioctl regression
[BLOCK] Fix bad sharing of tag busy list on queues with shared tag maps
Fix a build error when BLOCK=n
block: use lock bitops for the tag map.
cciss: update copyright notices
cfq_get_queue: fix possible NULL pointer access
blk_sync_queue() should cancel request_queue->unplug_work
cfq_exit_queue() should cancel cfq_data->unplug_work
block layer: remove a unused argument of drive_stat_acct()
* 'sg' of git://git.kernel.dk/linux-2.6-block:
Correction of "Update drivers to use sg helpers" patch for IMXMMC driver
sg_init_table() should use unsigned loop index variable
sg_last() should use unsigned loop index variable
Initialise scatter/gather list in sg driver
Initialise scatter/gather list in ata_sg_setup
x86: fix pci-gart failure handling
SG: s390-scsi: missing size parameter in zfcp_address_to_sg()
SG: clear termination bit in sg_chain()
a) for type B we should _not_ iounmap() acb->pmu; it's not ioremapped.
b) for type B we should iounmap() two regions we _do_ ioremap.
c) if ioremap() fails, we need to bail out (and clean up).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use of ptrdiff_t in places like
- if (!access_ok(VERIFY_WRITE, u_tmp->rx_buf, u_tmp->len))
+ if (!access_ok(VERIFY_WRITE, (u8 __user *)
+ (ptrdiff_t) u_tmp->rx_buf,
+ u_tmp->len))
is wrong; for one thing, it's a bad C (it's what uintptr_t is for; in general
we are not even promised that ptrdiff_t is large enough to hold a pointer,
just enough to hold a difference between two pointers within the same object).
For another, it confuses the fsck out of sparse.
Use unsigned long or uintptr_t instead. There are several places misusing
ptrdiff_t; fixed.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
initializing a field in data shared with the card with
cpu_to_le32(something) | 0x100000 is broken - the field is, indeed,
little-endian and we need cpu_to_le32() on both parts.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
driver still has serious portability problems
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- off by one in dmar_get_fault_reason() (maximal index in array is
ARRAY_SIZE()-1, not ARRAY_SIZE())
- NULL noise removal
- __iomem annotation fix
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
rpcrdma stuff lacks endianness annotations for on-the-wire data.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Don't undef __i386__/__x86_64__ in uml anymore, make sure that (few) places
that required adjusting the ifdefs got those.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The conversion of handlers to compat_blkdev_ioctl accidentally
disabled handling of most ioctl numbers on block devices because
of a typo. Fix the one line to enable it all again.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
For the locking to work, only the tag map and tag bit map may be shared
(incidentally, I was just explaining this to Nick yesterday, but I
apparently didn't review the code well enough myself). But we also share
the busy list! The busy_list must be queue private, or we need a
block_queue_tag covering lock as well.
So we have to move the busy_list to the queue. This'll work fine, and
it'll actually also fix a problem with blk_queue_invalidate_tags() which
will invalidate tags across all shared queues. This is a bit confusing,
the low level driver should call it for each queue seperately since
otherwise you cannot kill tags on just a single queue for eg a hard
drive that stops responding. Since the function has no callers
currently, it's not an issue.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
mm/filemap.c: In function '__filemap_fdatawrite_range':
mm/filemap.c:200: error: implicit declaration of function
'mapping_cap_writeback_dirty'
This happens when we don't use/have any block devices and a NFS root
filesystem is used.
mapping_cap_writeback_dirty() is defined in linux/backing-dev.h which
used to be provided in mm/filemap.c by linux/blkdev.h until commit
f5ff8422bb (Fix warnings with
!CONFIG_BLOCK).
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This patch updates the copyright information for the cciss driver. It
includes extending the year to 2007 (how timely) and some minor corrections
deemed necessary by HP legal and the Open Source Review Board. Please
consider this patch for inclusion.
Signed-off-by: Mike Miller <mike.miller@hp.com>
--------------------------------------------------------------------------------
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
cfq_get_queue()->cfq_find_alloc_queue() can fail, check the returned value.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Note that this isn't a bug at the moment, since the regular IO path
does not call this path without __GFP_WAIT set. However, it could be a
future bug, so I've applied it.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
blk_sync_queue() cancels the timer, but forgets to cancel the work.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
The nr_sector argument of drive_stat_acct() is not used anymore since the read and write sectors statistics are now updated in end_that_request_first(). This patch removes the useless argument.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Change the hrtimer printk "Switched to high resolution mode .." to
be KERN_DEBUG, rather than KERN_INFO. If users need to see this they
can pass "loglevel" or "debug" on the command line, or check dmesg.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/hrtimer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
This makes sure printk format strings contain no more than a single
line.
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch removes the unused
EXPORT_SYMBOL_GPL(tick_nohz_get_sleep_length).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Clean up: fix a mixed sign comparison in sg_init_table() accidentally
introduced by commit d6ec0842. The sign of the loop index variable
should match the sign of the "nents" argument.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
Clean up: fix a mixed sign comparison in sg_last() accidentally
introduced by commit 70eb8040. The sign of the loop index variable
should match the sign of the "nents" argument.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
After turning on DEBUG_SG I hit a fail:
kernel BUG at include/linux/scatterlist.h:50!
sg_build_indirect
sg_build_reserve
sg_open
chrdev_open
__dentry_open
do_filp_open
do_sys_open
We should initialise the sg list when we allocate it in sg_build_sgat.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
After turning on DEBUG_SG I hit a fail:
kernel BUG at include/linux/scatterlist.h:50!
ata_qc_issue
ata_scsi_translate
ipr_queuecommand
scsi_dispatch_cmd
scsi_request_fn
elv_insert
blk_execute_rq_nowait
blk_execute_rq
sg_io
scsi_cmd_ioctl
cdrom_ioctl
sr_block_ioctl
blkdev_driver_ioctl
blkdev_ioctl
block_ioctl
do_ioctl
vfs_ioctl
sys_ioctl
sg_ioctl_trans
It looks like ata_sg_setup is working on an uninitialised sg table. Call
sg_init_table to initialise it before use.
Signed-off-by: Anton Blanchard <anton@samba.org>
Note: this patch will fix it, but you could also get away with just
doing the sg_init_table() once at qc creation time.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
blk_rq_map_sg doesn't initialize sg->dma_address/length to zero
anymore. Some low level drivers reuse sg lists without initializing so
IOMMUs might get non-zero dma_address/length. If map_sg fails, we need
pass the number of the mapped entries to gart_unmap_sg.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Since we are using the last entry in the list, clear any possible
termination bit that may have already been set. Pointed out by Rusty.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
(pointer > 0) is deeply weird; (pointer >= 0) is even dumber...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
#include <scatterlist/scatterlist.h>
is an odd thing to do...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
struct device doesn't have ->dma; it's in struct expansion_card where
that struct device is embedded into.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds the symbol "init_level4_pgt" to the vmcoreinfo data so
that makedumpfile (dump filtering command) supports x86_64 sparsemem
kernel of linux-2.6.24.
makedumpfile creates a small dumpfile by excluding unnecessary pages for
the analysis. It checks attributes in page structures and distinguishes
necessary pages and unnecessary ones. To check them, makedumpfile gets
the vmcoreinfo data which has the minimum debugging information only for
dump filtering.
For older x86_64 kernel (linux-2.6.23 or before), makedumpfile translates
the virtual address of page structure into physical address by subtracting
PAGE_OFFSET from virtual address, but this translation isn't effective for
linux-2.6.24 sparsemem kernel, because its page structures are in virtual
memmap area. makedumpfile should translate their virtual address by 4-levels
paging and it needs the symbol "init_level4_pgt".
Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
fix this warning:
arch/x86/kernel/early-quirks.c:40: warning: nvidia_hpet_check defined but not used
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix !CONFIG_SMP warning:
arch/x86/kernel/acpi/processor.c: In function arch_acpi_processor_init_pdc:
arch/x86/kernel/acpi/processor.c:65: warning: unused variable cpu
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The kernel only ever supports 1 version of the boot protocol
so there is no need to check the boot protocol revision to
see if a feature is supported.
Both x86 and x86_64 support the same boot protocol so we need
to implement the KEEP_SEGMENTS on x86_64 as well. It isn't
just paravirt bootloaders that could use this functionality.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
There were two problems. Firstly, someone forgot the struct keyword in
front of cpuinfo_x86, so I take it this wasn't even compile checked.
Secondly, the actual definition has this as a SHARED_ALIGNED, so the
definitions mismatch.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
KVM uses smp_call_function_mask and therefor need smp_ops to be exported.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This reverts commit 6442eea937.
The patch breaks smp_ops and needs to be reverted. The solution to
allow modular build of KVM is to export smp_ops instead.
Pointed-out-by: James Bottomley
<jejb> tglx, so write out 100 times "voyager is a useful architecture" ...
<tglx> yes, Sir
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
