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2009-07-31lib/scatterlist: add a flags to signalize mapping directionSebastian Andrzej Siewior
sg_miter_start() is currently unaware of the direction of the copy process (to or from the scatter list). It is important to know the direction because the page has to be flushed in case the data written is seen on a different mapping in user land on cache incoherent architectures. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-07-30Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing/stat: Fix seqfile memory leak function-graph: Fix seqfile memory leak trace_stack: Fix seqfile memory leak profile: Suppress warning about large allocations when profile=1 is specified
2009-07-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: be more polite in the async caching threads Btrfs: preserve commit_root for async caching
2009-07-30Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dmaengine: at_hdmac: add DMA slave transfers dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller dmaengine: dmatest: correct thread_count while using multiple thread per channel dmaengine: dmatest: add a maximum number of test iterations drivers/dma: Remove unnecessary semicolons drivers/dma/fsldma.c: Remove unnecessary semicolons dmaengine: move HIGHMEM64G restriction to ASYNC_TX_DMA fsldma: do not clear bandwidth control bits on the 83xx controller fsldma: enable external start for the 83xx controller fsldma: use PCI Read Multiple command
2009-07-30Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: Fix loading of VAT inode when drive wrongly reports number of recorded blocks
2009-07-30Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6: quota: Silence lockdep on quota_on
2009-07-30Merge git://git.infradead.org/users/cbou/battery-2.6.31Linus Torvalds
* git://git.infradead.org/users/cbou/battery-2.6.31: Add ds2782 battery gas gauge driver olpc_battery: Ensure that the TRICKLE bit is checked olpc_battery: Fix up eeprom read function
2009-07-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: remove dcache entries for remote deleted inodes GFS2: Fix incorrent statfs consistency check GFS2: Don't put unlikely reclaim candidates on the reclaim list. GFS2: Don't try and dealloc own inode GFS2: Fix panic in glock memory shrinker GFS2: keep statfs info in sync on grows GFS2: Shrink the shrinker
2009-07-30Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Update defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxx powerpc/86xx: Update GE Fanuc sbc310 default configuration powerpc/86xx: Update defconfig for GE Fanuc's PPC9A cpm_uart: Don't use alloc_bootmem in cpm_uart_cpm2.c powerpc/83xx: Fix PCI IO base address on MPC837xE-RDB boards powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boards powerpc/mm: Fix SMP issue with MMU context handling code
2009-07-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest and virtio: cleanup struct definitions to Linux style. lguest: update commentry lguest: fix comment style virtio: refactor find_vqs virtio: delete vq from list virtio: fix memory leak on device removal lguest: fix descriptor corruption in example launcher lguest: dereferencing freed mem in add_eventfd()
2009-07-30kprobes: Use kernel_text_address() for checking probe addressMasami Hiramatsu
Use kernel_text_address() for checking probe address instead of __kernel_text_address(), because __kernel_text_address() returns true for init functions even after relaseing those functions. That will hit a BUG() in text_poke(). Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-30Alan doesn't want to maintain tty code any moreLinus Torvalds
Not that anybody can blame him. It's a morass. But hey, it's way better than it _used_ to be, though, so thanks for all the fish. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-30quota: Silence lockdep on quota_onJan Kara
Commit d01730d74d2b0155da50d44555001706294014f7 didn't completely fix the problem since we still take dqio_mutex and i_mutex in the wrong order. Move taking of i_mutex further down (luckily it's needed only for updating inode flags) below where dqio_mutex is taken. Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Jan Kara <jack@suse.cz>
2009-07-30udf: Fix loading of VAT inode when drive wrongly reports number of recorded ↵Jan Kara
blocks VAT inode is located in the last block recorded block of the medium. When the drive errorneously reports number of recorded blocks, we failed to load the VAT inode and thus mount the medium. This patch makes kernel try to read VAT inode from the last block of the device if it is different from the last recorded block. Signed-off-by: Jan Kara <jack@suse.cz>
2009-07-30Btrfs: be more polite in the async caching threadsChris Mason
The semaphore used by the async caching threads can prevent a transaction commit, which can make the FS appear to stall. This releases the semaphore more often when a transaction commit is in progress. Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-07-30Btrfs: preserve commit_root for async cachingYan Zheng
The async block group caching code uses the commit_root pointer to get a stable version of the extent allocation tree for scanning. This copy of the tree root isn't going to change and it significantly reduces the complexity of the scanning code. During a commit, we have a loop where we update the extent allocation tree root. We need to loop because updating the root pointer in the tree of tree roots may allocate blocks which may change the extent allocation tree. Right now the commit_root pointer is changed inside this loop. It is more correct to change the commit_root pointer only after all the looping is done. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-07-30GFS2: remove dcache entries for remote deleted inodesBenjamin Marzinski
When a file is deleted from a gfs2 filesystem on one node, a dcache entry for it may still exist on other nodes in the cluster. If this happens, gfs2 will be unable to free this file on disk. Because of this, it's possible to have a gfs2 filesystem with no files on it and no free space. With this patch, when a node receives a callback notifying it that the file is being deleted on another node, it schedules a new workqueue thread to remove the file's dcache entry. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: Fix incorrent statfs consistency checkBenjamin Marzinski
Since both linked and unlinked inodes are counted by rgd->rd_dinodes, It makes no sense to count them with the used data blocks (first check that I changed), it makes sense to count them with the linked inodes (second check), and it makes no sense to care if there are more unlinked inodes than linked ones. This fixes these errors. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: Don't put unlikely reclaim candidates on the reclaim list.Benjamin Marzinski
GFS2 was placing far too many glocks on the reclaim list that were not good candidates for freeing up from cache. These locks would sit there and repeatedly get scanned to see if they could be reclaimed, wasting a lot of time when there was memory pressure. This fix does more checks on the locks to see if they are actually likely to be removable from cache. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: Don't try and dealloc own inodeSteven Whitehouse
When searching for unlinked, but still allocated inodes during block allocation, avoid the block relating to the inode that is doing the allocation. This fixes a hang caused when an unlinked, but still open, inode tries to allocate some more blocks and lands up finding itself during the search for deallocatable inodes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: Fix panic in glock memory shrinkerBenjamin Marzinski
It is possible for gfs2_shrink_glock_memory() to check a glock for demotion that's in the process of being freed by gfs2_glock_put(). In this case, gfs2_shrink_glock_memory() will acquire a new reference to this glock, and then try to free the glock itself when it drops the refernce. To solve this, gfs2_shrink_glock_memory() just needs to check if the glock is in the process of being freed, and if so skip it without ever unlocking the lru_lock. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Acked-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: keep statfs info in sync on growsBenjamin Marzinski
GFS2 wasn't syncing its statfs info on grows. This causes a problem when you grow the filesystem on multiple nodes. GFS2 would calculate the new space based on the resource groups (which are always current), and then assume that the filesystem had grown the from the existing statfs size. If you grew the filesystem on two different nodes in a short time, the second node wouldn't see the statfs size change from the first node, and would assume that it was grown by a larger amount than it was. When all these changes were synced out, the total fileystem size would be incorrect (the first grow would be counted twice). This patch syncs makes GFS2 read in the statfs changes from disk before a grow, and write them out after the grow, while the master statfs inode is locked. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30GFS2: Shrink the shrinkerSteven Whitehouse
This patch removes some of the special cases that the shrinker was trying to deal with. As a result we leave fewer items on the list and none at all which cannot be demoted. This makes the list scanning more efficient and solves some issues seen with large numbers of inodes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-07-30lguest and virtio: cleanup struct definitions to Linux style.Rusty Russell
I've been doing this for years, and akpm picked me up on it about 12 months ago. lguest partly serves as example code, so let's do it Right. Also, remove two unused fields in struct vblk_info in the example launcher. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com>
2009-07-30lguest: update commentryRusty Russell
Every so often, after code shuffles, I need to go through and unbitrot the Lguest Journey (see drivers/lguest/README). Since we now use RCU in a simple form in one place I took the opportunity to expand that explanation. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
2009-07-30lguest: fix comment styleRusty Russell
I don't really notice it (except to begrudge the extra vertical space), but Ingo does. And he pointed out that one excuse of lguest is as a teaching tool, it should set a good example. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com>
2009-07-30virtio: refactor find_vqsMichael S. Tsirkin
This refactors find_vqs, making it more readable and robust, and fixing two regressions from 2.6.30: - double free_irq causing BUG_ON on device removal - probe failure when vq can't be assigned to msi-x vector (reported on old host kernels) Tested-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-07-30virtio: delete vq from listMichael S. Tsirkin
This makes delete vq the reverse of find vq. This is required to make it possible to retry find_vqs after a failure, otherwise the list gets corrupted. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-07-30virtio: fix memory leak on device removalMichael S. Tsirkin
Make vp_free_vectors do the reverse of vq_request_vectors. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-07-30lguest: fix descriptor corruption in example launcherRusty Russell
1d589bb16b825b3a7b4edd34d997f1f1f953033d "Add serial number support for virtio_blk, V4a" extended 'struct virtio_blk_config' to 536 bytes. Lguest and S/390 both use an 8 bit value for the feature length, and this change broke them (if the code is naive). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: John Cooper <john.cooper@redhat.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
2009-07-30lguest: dereferencing freed mem in add_eventfd()Dan Carpenter
"new" was freed and then dereferenced. Also the return value wasn't being used so I modified the caller as well. Compile tested only. Found by smatch (http://repo.or.cz/w/smatch.git). regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-07-29powerpc: Update defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxxKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/86xx: Update GE Fanuc sbc310 default configurationMartyn Welch
General update of defconfig including the following notable changes: - Enable Highmem support. - Support for PCMCIA based daughter card. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/86xx: Update defconfig for GE Fanuc's PPC9AMartyn Welch
General update of defconfig including the following notable changes: - Enable GPIO access via sysfs on GE Fanuc's PPC9A. - Enable Highmem support. - Support for PCMCIA based daughter card. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29cpm_uart: Don't use alloc_bootmem in cpm_uart_cpm2.cMark Ware
This is another alloc_bootmem() -> kzalloc() change, this time to fix the non-fatal badness caused when booting with a cpm2_uart console. Signed-off-by: Mark Ware <mware@elphinstone.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/83xx: Fix PCI IO base address on MPC837xE-RDB boardsAnton Vorontsov
U-Boot maps PCI IO at 0xe0300000, while current dts files specify 0xe2000000. This leads to the following oops with CONFIG_8139TOO_PIO=y. 8139too Fast Ethernet driver 0.9.28 Machine check in kernel mode. Caused by (from SRR1=41000): Transfer error ack signal Oops: Machine check, sig: 7 [#1] MPC837x RDB [...] NIP [00000900] 0x900 LR [c0439df8] rtl8139_init_board+0x238/0x524 Call Trace: [cf831d90] [c0439dcc] rtl8139_init_board+0x20c/0x524 (unreliable) [cf831de0] [c043a15c] rtl8139_init_one+0x78/0x65c [cf831e40] [c0235250] pci_call_probe+0x20/0x30 [...] This patch fixes the issue by specifying the correct PCI IO base address. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boardsAnton Vorontsov
Sometimes (e.g. when there are no UEMs attached to a board) fsl_pq_mdio_find_free() fails to find a spare address for a TBI PHY, this is because get_phy_id() returns bogus 0x0000ffff values (0xffffffff is expected), and therefore mdio bus probing fails with the following message: fsl-pq_mdio: probe of e0082120.mdio failed with error -16 And obviously ethernet doesn't work after this. This patch solves the problem by adding tbi-phy node into mdio node, so that we won't scan for spare addresses, we'll just use a fixed one. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boardsAnton Vorontsov
Linux isn't able to detect link changes on ethernet ports that were used by U-Boot. This is because U-Boot wrongly clears interrupt polarity bit (INTPOL, 0x400) in the extended status register (EXT_SR, 0x1b) of Marvell PHYs. There is no easy way for PHY drivers to know IRQ line polarity (we could extract it from the device tree and pass it to phydevs, but that'll be quite a lot of work), so for now just reset the PHYs to their default states. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29powerpc/mm: Fix SMP issue with MMU context handling codeKumar Gala
In switch_mmu_context() if we call steal_context_smp() to get a context to use we shouldn't fall through and than call steal_context_up(). Doing so can be problematic in that the 'mm' that steal_context_up() ends up using will not get marked dirty in the stale_map[] for other CPUs that might have used that mm. Thus we could end up with stale TLB entries in the other CPUs that can cause all kinda of havoc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29Merge branch 'i2c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds
* 'i2c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c-omap: OMAP3430 Silicon Errata 1.153 i2c-omap: In case of a NACK|ARDY|AL return from the ISR i2c-omap: Bug in reading the RXSTAT/TXSTAT values from the I2C_BUFFSTAT register i2c-sh_mobile: change module_init() to subsys_initcall() i2c: strncpy does not null terminate string i2c-s3c2410: s3c24xx_i2c_init: don't clobber IICLC value
2009-07-29Merge branch 'pm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM / Hibernate: Replace bdget call with simple atomic_inc of i_count PM / ACPI: HP G7000 Notebook needs a SCI_EN resume quirk
2009-07-29MAINTAINERS: update HP Jornada 700-series and Epson s1d13xxxfb supportKristoffer Ericson
Add the relevant git repositories and affected files to the maintainership of HP Jornada 700-series and Epson s1d13xxxfb support. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29MAINTAINERS: finish off the email address coalescingJoe Perches
Add some touchups to the sample record. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29MAINTAINERS: coalesce name and email address linesJoe Perches
Switch the MAINTAINERS email address format from P: Linus Torvalds M: torvalds@linux-foundation.org to M: Linus Torvalds <torvalds@linux-foundation.org> Mainly to ease the copy-n-pasting of maitnainer addresses into email clients. The script to perform this operation: #! /bin/sh # # Change MAINTAINERS from # P: name # M: address # to: # M: name <address> # # Integrate P: and M: lines # perl -i -e 'local $/; while(<>) { s@P: ([^\n]+)\nM: ([^\n]+)\n@M: \1 <\2>\n@g; print; }' MAINTAINERS # # Quote names with periods, commas and parentheses # sed -r -i -e "s/^M: (.+)([\.,'\(])(.*) </M: \"\1\2\3\" </g" MAINTAINERS Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29get_maintainerpl-add-git-min-percent-option-fixJoe Perches
Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29get_maintainer.pl: Add git-min-percent optionJoe Perches
Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29scripts/get_maintainer.pl: Add -f directory useJoe Perches
Don't require a specific file in a directory to be tested. Also Arnd Bergmann pointed out that the MAINTAINERS pattern requirement that directory patterns have a trailing slash was unnecessary and was likely to be error prone. Removed that requirement. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29MAINTAINERS: Scott Murray is no longer with SomaNetworksJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29MAINTAINERS: QLOGIC QLA3XXX - Add Ron Mercer email addressJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29MAINTAINERS: QLOGIC QLA2XXX - add Andrew Vasquez email addressJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>