- 10 Feb, 2011 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6Linus Torvalds authored
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: deb-pkg: Fix building outside of source tree (O=...). deb-pkg: Use $SRCARCH for include path
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- 09 Feb, 2011 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: virtio: console: Update Copyright virtio: console: Wake up outvq on host notifications
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git://git.kernel.dk/linux-2.6-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: cdrom: support devices that have check_events but not media_changed cfq-iosched: Don't wait if queue already has requests. blkio-throttle: Avoid calling blkiocg_lookup_group() for root group cfq: rename a function to give it more appropriate name cciss: make cciss_revalidate not loop through CISS_MAX_LUNS volumes unnecessarily. drivers/block/aoe/Makefile: replace the use of <module>-objs with <module>-y loop: queue_lock NULL pointer derefence in blk_throtl_exit drivers/block/Makefile: replace the use of <module>-objs with <module>-y blktrace: Don't output messages if NOTIFY isn't set.
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git://neil.brown.name/mdLinus Torvalds authored
* 'for-linus' of git://neil.brown.name/md: FIX: md: process hangs at wait_barrier after 0->10 takeover md_make_request: don't touch the bio after calling make_request md: Don't allow slot_store while resync/recovery is happening. md: don't clear curr_resync_completed at end of resync. md: Don't use remove_and_add_spares to remove failed devices from a read-only array Add raid1->raid0 takeover support md: Remove the AllReserved flag for component devices. md: don't abort checking spares as soon as one cannot be added. md: fix the test for finding spares in raid5_start_reshape. md: simplify some 'if' conditionals in raid5_start_reshape. md: revert change to raid_disks on failure.
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Simon Arlott authored
Commit 93aae17a ("sr: implement sr_check_events()") replaced the media_changed op with the check_events op in drivers/scsi/sr.c All users that check for the CDC_MEDIA_CHANGED capbility try both the check_events op and the media_changed op, but register_cdrom() was requiring media_changed. This patch fixes the capability checking. The cdrom_select_disc ioctl is also using the two operations, so they should be required for CDC_SELECT_DISC too. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: Tejun Heo <tj@kernel.org> Cc: Kay Sievers <kay.sievers@vrfy.org> Tested-by: Chris Clayton <chris2553@googlemail.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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Justin TerAvest authored
Commit 7667aa06 added logic to wait for the last queue of the group to become busy (have at least one request), so that the group does not lose out for not being continuously backlogged. The commit did not check for the condition that the last queue already has some requests. As a result, if the queue already has requests, wait_busy is set. Later on, cfq_select_queue() checks the flag, and decides that since the queue has a request now and wait_busy is set, the queue is expired. This results in early expiration of the queue. This patch fixes the problem by adding a check to see if queue already has requests. If it does, wait_busy is not set. As a result, time slices do not expire early. The queues with more than one request are usually buffered writers. Testing shows improvement in isolation between buffered writers. Cc: stable@kernel.org Signed-off-by: Justin TerAvest <teravest@google.com> Reviewed-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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- 08 Feb, 2011 4 commits
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Amit Shah authored
Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Amit Shah authored
The outvq needs to be woken up on host notifications so that buffers consumed by the host can be reclaimed, outvq freed, and application writes may proceed again. The need for this is now finally noticed when I have qemu patches ready to use nonblocking IO and flow control. CC: Hans de Goede <hdegoede@redhat.com> CC: stable@kernel.org Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Hans de Goede <hdegoede@redhat.com>
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Krzysztof Wojcik authored
Following symptoms were observed: 1. After raid0->raid10 takeover operation we have array with 2 missing disks. When we add disk for rebuild, recovery process starts as expected but it does not finish- it stops at about 90%, md126_resync process hangs in "D" state. 2. Similar behavior is when we have mounted raid0 array and we execute takeover to raid10. After this when we try to unmount array- it causes process umount hangs in "D" In scenarios above processes hang at the same function- wait_barrier in raid10.c. Process waits in macro "wait_event_lock_irq" until the "!conf->barrier" condition will be true. In scenarios above it never happens. Reason was that at the end of level_store, after calling pers->run, we call mddev_resume. This calls pers->quiesce(mddev, 0) with RAID10, that calls lower_barrier. However raise_barrier hadn't been called on that 'conf' yet, so conf->barrier becomes negative, which is bad. This patch introduces setting conf->barrier=1 after takeover operation. It prevents to become barrier negative after call lower_barrier(). Signed-off-by: Krzysztof Wojcik <krzysztof.wojcik@intel.com> Signed-off-by: NeilBrown <neilb@suse.de>
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Linus Torvalds authored
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- 07 Feb, 2011 29 commits
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: ALSA: AACI: allow writes to MAINCR to take effect ARM: Update mach-types ARM: 6652/1: ep93xx: correct the end address of the AC97 memory resource ARM: mxs/imx28: remove now unused clock lookup "fec.0" ARM: mxs: fix clock base address missing ARM: mxs: acknowledge gpio irq ARM: mach-imx/mach-mx25_3ds: Fix section type ARM: imx: Add VPR200 and MX51_3DS entries to uncompress.h ARM i.MX23: use correct register for setting the rate ARM i.MX23/28: remove secondary field from struct clk. It's unused ARM i.MX28: use correct register for setting the rate ARM i.MX28: fix bit operation
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Chris Mason authored
md_make_request was calling bio_sectors() for part_stat_add after it was calling the make_request function. This is bad because the make_request function can free the bio and because the bi_size field can change around. The fix here was suggested by Jens Axboe. It saves the sector count before the make_request call. I hit this with CONFIG_DEBUG_PAGEALLOC turned on while trying to break his pretty fusionio card. Cc: <stable@kernel.org> Signed-off-by: Chris Mason <chris.mason@oracle.com> Signed-off-by: NeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (33 commits) Btrfs: Fix page count calculation btrfs: Drop __exit attribute on btrfs_exit_compress btrfs: cleanup error handling in btrfs_unlink_inode() Btrfs: exclude super blocks when we read in block groups Btrfs: make sure search_bitmap finds something in remove_from_bitmap btrfs: fix return value check of btrfs_start_transaction() btrfs: checking NULL or not in some functions Btrfs: avoid uninit variable warnings in ordered-data.c Btrfs: catch errors from btrfs_sync_log Btrfs: make shrink_delalloc a little friendlier Btrfs: handle no memory properly in prepare_pages Btrfs: do error checking in btrfs_del_csums Btrfs: use the global block reserve if we cannot reserve space Btrfs: do not release more reserved bytes to the global_block_rsv than we need Btrfs: fix check_path_shared so it returns the right value btrfs: check return value of btrfs_start_ioctl_transaction() properly btrfs: fix return value check of btrfs_join_transaction() fs/btrfs/inode.c: Add missing IS_ERR test btrfs: fix missing break in switch phrase btrfs: fix several uncheck memory allocations ...
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix hcall tracepoint recursion powerpc/numa: Fix bug in unmap_cpu_from_node powerpc/numa: Disable VPHN on dedicated processor partitions powerpc/numa: Add length when creating OF properties via VPHN powerpc/numa: Check for all VPHN changes powerpc/numa: Only use active VPHN count fields powerpc/pseries: Remove unnecessary variable initializations in numa.c powerpc/pseries: Fix brace placement in numa.c powerpc/pseries: Fix typo in VPHN comments powerpc: Fix some 6xx/7xxx CPU setup functions powerpc: Pass the right cpu_spec to ->setup_cpu() on 64-bit powerpc/book3e: Protect complex macro args in mmu-book3e.h powerpc: Fix pfn_valid() when memory starts at a non-zero address
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Linus Torvalds authored
Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: arm: omap4: panda: remove usb_nop_xceiv_register(v1) OMAP1: Fix non-working LCD on OMAP310 OMAP3: Devkit8000: Change lcd power pin omap1: remove duplicated #include arm: mach-omap2: mux: free allocated memory on error exit arm: mach-omap2: board-rm680: fix rm680_vemmc regulator constraints OMAP: PM: SmartReflex: Fix possible null pointer read access OMAP: PM: SmartReflex: Fix possible memory leak arm: mach-omap2: voltage: debugfs: fix memory leak OMAP3: PM: fix save secure RAM to restore MPU power state OMAP: PM: SmartReflex: Add missing IS_ERR test
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Linus Torvalds authored
Merge branch 'x86-fixes-for-linus' of 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, nx: Mark the ACPI resume trampoline code as +x
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Tetsuo Handa authored
In prepare_kernel_cred() since 2.6.29, put_cred(new) is called without assigning new->usage when security_prepare_creds() returned an error. As a result, memory for new and refcount for new->{user,group_info,tgcred} are leaked because put_cred(new) won't call __put_cred() unless old->usage == 1. Fix these leaks by assigning new->usage (and new->subscribers which was added in 2.6.32) before calling security_prepare_creds(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tetsuo Handa authored
In cred_alloc_blank() since 2.6.32, abort_creds(new) is called with new->security == NULL and new->magic == 0 when security_cred_alloc_blank() returns an error. As a result, BUG() will be triggered if SELinux is enabled or CONFIG_DEBUG_CREDENTIALS=y. If CONFIG_DEBUG_CREDENTIALS=y, BUG() is called from __invalid_creds() because cred->magic == 0. Failing that, BUG() is called from selinux_cred_free() because selinux_cred_free() is not expecting cred->security == NULL. This does not affect smack_cred_free(), tomoyo_cred_free() or apparmor_cred_free(). Fix these bugs by (1) Set new->magic before calling security_cred_alloc_blank(). (2) Handle null cred->security in creds_are_invalid() and selinux_cred_free(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: remove checks for ses->status == CifsExiting cifs: add check for kmalloc in parse_dacl cifs: don't send an echo request unless NegProt has been done cifs: enable signing flag in SMB header when server has it on cifs: Possible slab memory corruption while updating extended stats (repost) CIFS: Fix variable types in cifs_iovec_read/write (try #2) cifs: fix length vs. total_read confusion in cifs_demultiplex_thread
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Yan, Zheng authored
take offset of start position into account when calculating page count. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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Russell King authored
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Jeff Layton authored
ses->status is never set to CifsExiting, so these checks are always false. Tested-by: JG <jg@cms.ac> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
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Russell King authored
The AACI TRM requires the MAINCR enable bit to be held zero for two bitclk cycles plus three apb_pclk cycles. Use a delay of 1us to ensure this. Ensure that writes to MAINCR to change the addressed codec only happen when required, and that they take effect in a similar manner to the above, otherwise we seem to occasionally have stuck slot busy bits. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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H. Peter Anvin authored
We reserve lowmem for the things that need it, like the ACPI wakeup code, way early to guarantee availability. This happens before we set up the proper pagetables, so set_memory_x() has no effect. Until we have a better solution, use an initcall to mark the wakeup code executable. Originally-by: Matthieu Castet <castet.matthieu@free.fr> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Matthias Hopf <mhopf@suse.de> Cc: rjw@sisk.pl Cc: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <4D4F8019.2090104@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Anton Blanchard authored
Spinlocks on shared processor partitions use H_YIELD to notify the hypervisor we are waiting on another virtual CPU. Unfortunately this means the hcall tracepoints can recurse. The patch below adds a percpu depth and checks it on both the entry and exit hcall tracepoints. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org
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Anton Blanchard authored
When converting to the new cpumask code I screwed up: - if (cpu_isset(cpu, numa_cpumask_lookup_table[node])) { - cpu_clear(cpu, numa_cpumask_lookup_table[node]); + if (cpumask_test_cpu(cpu, node_to_cpumask_map[node])) { + cpumask_set_cpu(cpu, node_to_cpumask_map[node]); This was introduced in commit 25863de0 (powerpc/cpumask: Convert NUMA code to new cpumask API) Fix it. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: <stable@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
There is no need to start up the timer and monitor topology changes on a dedicated processor partition, so disable it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
The rest of the NUMA code expects an OF associativity property with the first cell containing the length. Without this fix all topology changes cause us to misparse the property and put the cpu into node 0. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
The hypervisor uses unsigned 1 byte counters to signal topology changes to the OS. Since they can wrap we need to check for any difference, not just if the hypervisor count is greater than the previous count. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
VPHN supports up to 8 distance fields but the number of entries in ibm,associativity-reference-points signifies how many are in use. Don't look at all the VPHN counts, only distance_ref_points_depth worth. Since we already cap our distance metrics at MAX_DISTANCE_REF_POINTS, use that to size the VPHN arrays and add a BUILD_BUG_ON to avoid it growing larger than the VPHN maximum of 8. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesse Larrew authored
Remove unnecessary variable initializations in VPHN functions. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesse Larrew authored
Fix brace placement in VPHN code. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesse Larrew authored
Correct a spelling error in VPHN comments in numa.c. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Some of those functions try to adjust the CPU features, for example to remove NAP support on some revisions. However, they seem to use r5 as an index into the CPU table entry, which might have been right a long time ago but no longer is. r4 is the right register to use. This probably caused some off behaviours on some PowerMac variants using 750cx or 7455 processor revisions. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: stable@kernel.org
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Benjamin Herrenschmidt authored
When calling setup_cpu() on 64-bit, we pass a pointer to the cputable entry we have found. This used to be fine when cur_cpu_spec was a pointer to that entry, but nowadays, we copy the entry into a separate variable, and we do so before we call the setup_cpu() callback. That means that any attempt by that callback at patching the CPU table entry (to adjust CPU features for example) will patch the wrong table. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Scott Wood authored
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Scott Wood authored
max_mapnr is a pfn, not an index innto mem_map[]. So don't add ARCH_PFN_OFFSET a second time. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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- 06 Feb, 2011 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6Linus Torvalds authored
* 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: arm/ixp4xx: Rename FREQ macro to avoid collisions IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries.
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