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* ARM: 7041/1: gpio-ep93xx: hookup the to_irq callback in the driverLinus Walleij2011-08-222-9/+19
| | | | | | | | | Remove the ep93xx machine specific dependencies for gpio_to_irq() by hooking up the callback in the driver and using __gpio_to_irq. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7040/1: mach-davinci: break out GPIO driver specificsLinus Walleij2011-08-229-79/+100
| | | | | | | | | | | | The <mach/gpio.h> file is included from upper directories and deal with generic GPIO and gpiolib stuff. Break out the platform and driver specific defines and functions into its own header file. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7039/1: mach-davinci: move DaVinci TNET GPIO driver to GPIO subsystemLinus Walleij2011-08-223-1/+1
| | | | | | | | | | As per example from the other ARM boards, push the DaVinci TNET GPIO driver down to the GPIO subsystem so it can be consolidated. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7038/1: mach-davinci: move GPIO driver to GPIO subsystemLinus Walleij2011-08-223-1/+2
| | | | | | | | | | As per example from the other ARM boards, push the DaVinci GPIO driver down to the GPIO subsystem so it can be consolidated. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7037/1: mach-ks8695: fix GPIO LEDsLinus Walleij2011-08-222-0/+2
| | | | | | | | | | | | | Enabling the LEDs on the ks8695 doesn't even compile, fix it with a proper include and also replace a <mach/gpio.h> with the proper <linux/gpio.h>. Cc: zeal <zealcook@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Daniel Silverstone <dsilvers@simtec.co.uk> Acked-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7036/1: mach-ks8695: break out GPIO driver specificsLinus Walleij2011-08-226-27/+43
| | | | | | | | | | | | | | The <mach/gpio.h> file is included from upper directories and deal with generic GPIO and gpiolib stuff. Break out the platform and driver specific defines and functions into its own header file. Cc: zeal <zealcook@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Daniel Silverstone <dsilvers@simtec.co.uk> Acked-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7035/1: mach-ks8695: move GPIO driver to GPIO subsystemLinus Walleij2011-08-223-1/+2
| | | | | | | | | | | | As per example from the other ARM boards, push the KS8695 GPIO driver down to the GPIO subsystem so it can be consolidated. Cc: zeal <zealcook@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Daniel Silverstone <dsilvers@simtec.co.uk> Acked-by: Simtec Linux Team <linux@simtec.co.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7034/1: mach-u300: delete irq_to_gpio() functionLinus Walleij2011-08-221-9/+0
| | | | | | | | This function is not used in the U300 build, and on the whole the call is hard to consolidate so get rid of it from this machine. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7033/1: mach-u300: break out GPIO driver specificsLinus Walleij2011-08-224-246/+259
| | | | | | | | | | The <mach/gpio.h> file is included from upper directories and deal with generic GPIO and gpiolib stuff. Break out the platform and driver specific defines and functions into its own header file. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7032/1: plat-nomadik: break out GPIO driver specificsLinus Walleij2011-08-2213-77/+96
| | | | | | | | | | | | The <[plat|mach]/gpio.h> file is included from upper directories and deal with generic GPIO and gpiolib stuff. Break out the platform and driver specific defines and functions into its own header file. Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Alessandro Rubini <rubini@unipv.it> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: make trivial GPIOLIB implementation the defaultRussell King2011-08-1231-85/+22
| | | | | | | | | | | | | | | Rather than marking the mach/gpio.h header files which want to use the trivial GPIOLIB implementation, mark those which do not want to use it instead. This means that by default, you get the trivial implementation and only have to do something extra if you need to. This should encourage the use of the trivial default implementation. As an additional bonus, several gpio.h header files become empty. Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: consolidate gpio_to_irqRussell King2011-08-1224-42/+13
| | | | | | | | | | Many of the gpio_to_irq implementations use the gpiolib version of this function. Provide the standard gpiolib gpio_to_irq() for everyone, but allow platforms to override it if they wish. Add the neccessary overrides for those platforms which do not use the standard definition. Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: consolidate trivial gpiolib implementationsRussell King2011-08-1225-150/+37
| | | | | | | | | | | | | | | Consolidate 24 trivial gpiolib implementions out of mach/gpio.h into asm/gpio.h. This is basically the include of asm-generic/gpio.h and the definition of gpio_get_value, gpio_set_value, and gpio_cansleep as described in Documentation/gpio.txt Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: David Brown <davidb@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: pxa: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-081-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: tegra: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-081-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: ixp2000: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-081-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: pnx4008: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-082-2/+2
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: davinci: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-081-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: nomadik: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-081-1/+1
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: at91: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-086-6/+6
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: omap: convert drivers to use asm/gpio.h rather than mach/gpio.hRussell King2011-08-0813-13/+13
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: convert includes of mach/gpio.h and asm/gpio.h to linux/gpio.hRussell King2011-08-08138-222/+137
| | | | | | | | Convert arch/arm includes of mach/gpio.h and asm/gpio.h to linux/gpio.h before we start consolidating the individual platform implementations of the gpio header files. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: gpio: at91: remove redundant include of mach/gpio.hRussell King2011-08-081-1/+0
| | | | | | asm/gpio.h already directly includes mach/gpio.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Linux 3.1-rc1v3.1-rc1Linus Torvalds2011-08-071-2/+2
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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2011-08-071-2/+4
|\ | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Fix build with DEBUG_PAGEALLOC enabled.
| * sparc: Fix build with DEBUG_PAGEALLOC enabled.David S. Miller2011-08-061-2/+4
| | | | | | | | | | | | | | arch/sparc/mm/init_64.c:1622:22: error: unused variable '__swapper_4m_tsb_phys_patch_end' [-Werror=unused-variable] arch/sparc/mm/init_64.c:1621:22: error: unused variable '__swapper_4m_tsb_phys_patch' [-Werror=unused-variable] Signed-off-by: David S. Miller <davem@davemloft.net>
* | sh: Fix boot crash related to SCIRafael J. Wysocki2011-08-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Commit d006199e72a9 ("serial: sh-sci: Regtype probing doesn't need to be fatal.") made sci_init_single() return when sci_probe_regmap() succeeds, although it should return when sci_probe_regmap() fails. This causes systems using the serial sh-sci driver to crash during boot. Fix the problem by using the right return condition. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | arm: remove stale export of 'sha_transform'Linus Torvalds2011-08-071-3/+0
| | | | | | | | | | | | | | The generic library code already exports the generic function, this was left-over from the ARM-specific version that just got removed. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | arm: remove "optimized" SHA1 routinesLinus Torvalds2011-08-072-212/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 1eb19a12bd22 ("lib/sha1: use the git implementation of SHA-1"), the ARM SHA1 routines no longer work. The reason? They depended on the larger 320-byte workspace, and now the sha1 workspace is just 16 words (64 bytes). So the assembly version would overwrite the stack randomly. The optimized asm version is also probably slower than the new improved C version, so there's no reason to keep it around. At least that was the case in git, where what appears to be the same assembly language version was removed two years ago because the optimized C BLK_SHA1 code was faster. Reported-and-tested-by: Joachim Eastwood <manabian@gmail.com> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | fix rcu annotations noise in cred.hAl Viro2011-08-071-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | task->cred is declared as __rcu, and access to other tasks' ->cred is, indeed, protected. Access to current->cred does not need rcu_dereference() at all, since only the task itself can change its ->cred. sparse, of course, has no way of knowing that... Add force-cast in current_cred(), make current_fsuid() et.al. use it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | vfs: rename 'do_follow_link' to 'should_follow_link'Linus Torvalds2011-08-071-2/+2
| | | | | | | | | | | | | | | | Al points out that the do_follow_link() helper function really is misnamed - it's about whether we should try to follow a symlink or not, not about actually doing the following. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Fix POSIX ACL permission checkAri Savolainen2011-08-071-1/+1
| | | | | | | | | | | | | | | | | | After commit 3567866bf261: "RCUify freeing acls, let check_acl() go ahead in RCU mode if acl is cached" posix_acl_permission is being called with an unsupported flag and the permission check fails. This patch fixes the issue. Signed-off-by: Ari Savolainen <ari.m.savolainen@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds2011-08-069-504/+617
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.open-osd.org/linux-open-osd: ore: Make ore its own module exofs: Rename raid engine from exofs/ios.c => ore exofs: ios: Move to a per inode components & device-table exofs: Move exofs specific osd operations out of ios.c exofs: Add offset/length to exofs_get_io_state exofs: Fix truncate for the raid-groups case exofs: Small cleanup of exofs_fill_super exofs: BUG: Avoid sbi realloc exofs: Remove pnfs-osd private definitions nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4
| * | ore: Make ore its own moduleBoaz Harrosh2011-08-063-1/+23
| | | | | | | | | | | | | | | | | | | | | Export everything from ore need exporting. Change Kbuild and Kconfig to build ore.ko as an independent module. Import ore from exofs Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Rename raid engine from exofs/ios.c => oreBoaz Harrosh2011-08-066-255/+295
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ORE stands for "Objects Raid Engine" This patch is a mechanical rename of everything that was in ios.c and its API declaration to an ore.c and an osd_ore.h header. The ore engine will later be used by the pnfs objects layout driver. * File ios.c => ore.c * Declaration of types and API are moved from exofs.h to a new osd_ore.h * All used types are prefixed by ore_ from their exofs_ name. * Shift includes from exofs.h to osd_ore.h so osd_ore.h is independent, include it from exofs.h. Other than a pure rename there are no other changes. Next patch will move the ore into it's own module and will export the API to be used by exofs and later the layout driver Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: ios: Move to a per inode components & device-tableBoaz Harrosh2011-08-064-183/+218
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exofs raid engine was saving on memory space by having a single layout-info, single pid, and a single device-table, global to the filesystem. Then passing a credential and object_id info at the io_state level, private for each inode. It would also devise this contraption of rotating the device table view for each inode->ino to spread out the device usage. This is not compatible with the pnfs-objects standard, demanding that each inode can have it's own layout-info, device-table, and each object component it's own pid, oid and creds. So: Bring exofs raid engine to be usable for generic pnfs-objects use by: * Define an exofs_comp structure that holds obj_id and credential info. * Break up exofs_layout struct to an exofs_components structure that holds a possible array of exofs_comp and the array of devices + the size of the arrays. * Add a "comps" parameter to get_io_state() that specifies the ids creds and device array to use for each IO. This enables to keep the layout global, but the device-table view, creds and IDs at the inode level. It only adds two 64bit to each inode, since some of these members already existed in another form. * ios raid engine now access layout-info and comps-info through the passed pointers. Everything is pre-prepared by caller for generic access of these structures and arrays. At the exofs Level: * Super block holds an exofs_components struct that holds the device array, previously in layout. The devices there are in device-table order. The device-array is twice bigger and repeats the device-table twice so now each inode's device array can point to a random device and have a round-robin view of the table, making it compatible to previous exofs versions. * Each inode has an exofs_components struct that is initialized at load time, with it's own view of the device table IDs and creds. When doing IO this gets passed to the io_state together with the layout. While preforming this change. Bugs where found where credentials with the wrong IDs where used to access the different SB objects (super.c). As well as some dead code. It was never noticed because the target we use does not check the credentials. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Move exofs specific osd operations out of ios.cBoaz Harrosh2011-08-064-73/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ios.c will be moving to an external library, for use by the objects-layout-driver. Remove from it some exofs specific functions. Also g_attr_logical_length is used both by inode.c and ios.c move definition to the later, to keep it independent Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Add offset/length to exofs_get_io_stateBoaz Harrosh2011-08-063-16/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In future raid code we will need to know the IO offset/length and if it's a read or write to determine some of the array sizes we'll need. So add a new exofs_get_rw_state() API for use when writeing/reading. All other simple cases are left using the old way. The major change to this is that now we need to call exofs_get_io_state later at inode.c::read_exec and inode.c::write_exec when we actually know these things. So this patch is kept separate so I can test things apart from other changes. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Fix truncate for the raid-groups caseBoaz Harrosh2011-08-041-20/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the general raid-group case the truncate was wrong in that it did not also fix the object length of the neighboring groups. There are two bad cases in the old code: 1. Space that should be freed was not. 2. If a file That was big is truncated small, then made bigger again, the holes would not contain zeros but could expose old data. (If the growing of the file expands to more than a full groups cycle + group size (> S + T)) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Small cleanup of exofs_fill_superBoaz Harrosh2011-08-041-4/+2
| | | | | | | | | | | | | | | | | | | | | Small cleanup that unifies duplicated code used in both the error and success cases Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: BUG: Avoid sbi reallocBoaz Harrosh2011-08-042-24/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the beginning we realloced the sbi structure when a bigger then one device table was specified. (I know that was really stupid). Then much later when "register bdi" was added (By Jens) it was registering the pointer to sbi->bdi before the realloc. We never saw this problem because up till now the realloc did not do anything since the device table was small enough to fit in the original allocation. But once we starting testing with large device tables (Bigger then 28) we noticed the crash of writeback operating on a deallocated pointer. * Avoid the all mess by allocating the device-table as a second array and get rid of the variable-sized structure and the rest of this mess. * Take the chance to clean near by structures and comments. * Add a needed dprint on startup to indicate the loaded layout. * Also move the bdi registration to the very end because it will only fail in a low memory, which will probably fail before hand. There are many more likely causes to not load before that. This way the error handling is made simpler. (Just doing this would be enough to fix the BUG) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | exofs: Remove pnfs-osd private definitionsBoaz Harrosh2011-08-042-50/+1
| | | | | | | | | | | | | | | | | | | | | Now that pnfs-osd has hit mainline we can remove exofs's private header. (And the FIXME comment) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
| * | nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4Boaz Harrosh2011-08-041-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | exofs file system wants to use pnfs_osd_xdr.h file instead of redefining pnfs-objects types in it's private "pnfs.h" headr. Before we do the switch we must make sure pnfs_osd_xdr.h is compilable also under NFS versions smaller than 4.1. Since now it is needed regardless of version, by the exofs code. nfs4_string is not the only nfs4 type out in the global scope. Ack-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* | | vfs: optimize inode cache access patternsLinus Torvalds2011-08-064-34/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The inode structure layout is largely random, and some of the vfs paths really do care. The path lookup in particular is already quite D$ intensive, and profiles show that accessing the 'inode->i_op->xyz' fields is quite costly. We already optimized the dcache to not unnecessarily load the d_op structure for members that are often NULL using the DCACHE_OP_xyz bits in dentry->d_flags, and this does something very similar for the inode ops that are used during pathname lookup. It also re-orders the fields so that the fields accessed by 'stat' are together at the beginning of the inode structure, and roughly in the order accessed. The effect of this seems to be in the 1-2% range for an empty kernel "make -j" run (which is fairly kernel-intensive, mostly in filename lookup), so it's visible. The numbers are fairly noisy, though, and likely depend a lot on exact microarchitecture. So there's more tuning to be done. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | vfs: renumber DCACHE_xyz flags, remove some stale onesLinus Torvalds2011-08-062-18/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gcc tends to generate better code with small integers, including the DCACHE_xyz flag tests - so move the common ones to be first in the list. Also just remove the unused DCACHE_INOTIFY_PARENT_WATCHED and DCACHE_AUTOFS_PENDING values, their users no longer exists in the source tree. And add a "unlikely()" to the DCACHE_OP_COMPARE test, since we want the common case to be a nice straight-line fall-through. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2011-08-0618-453/+325
|\ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: Compute protocol sequence numbers and fragment IDs using MD5. crypto: Move md5_transform to lib/md5.c
| * | | net: Compute protocol sequence numbers and fragment IDs using MD5.David S. Miller2011-08-0614-361/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Computers have become a lot faster since we compromised on the partial MD4 hash which we use currently for performance reasons. MD5 is a much safer choice, and is inline with both RFC1948 and other ISS generators (OpenBSD, Solaris, etc.) Furthermore, only having 24-bits of the sequence number be truly unpredictable is a very serious limitation. So the periodic regeneration and 8-bit counter have been removed. We compute and use a full 32-bit sequence number. For ipv6, DCCP was found to use a 32-bit truncated initial sequence number (it needs 43-bits) and that is fixed here as well. Reported-by: Dan Kaminsky <dan@doxpara.com> Tested-by: Willy Tarreau <w@1wt.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | crypto: Move md5_transform to lib/md5.cDavid S. Miller2011-08-064-92/+102
| | |/ | |/| | | | | | | | | | | | | | | | We are going to use this for TCP/IP sequence number and fragment ID generation. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2011-08-066-18/+14
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: cope with negative dentries in cifs_get_root cifs: convert prefixpath delimiters in cifs_build_path_to_root CIFS: Fix missing a decrement of inFlight value cifs: demote DFS referral lookup errors to cFYI Revert "cifs: advertise the right receive buffer size to the server"
| * | | cifs: cope with negative dentries in cifs_get_rootJeff Layton2011-08-051-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The loop around lookup_one_len doesn't handle the case where it might return a negative dentry, which can cause an oops on the next pass through the loop. Check for that and break out of the loop with an error of -ENOENT if there is one. Fixes the panic reported here: https://bugzilla.redhat.com/show_bug.cgi?id=727927 Reported-by: TR Bentley <home@trarbentley.net> Reported-by: Iain Arnell <iarnell@gmail.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: stable@kernel.org Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
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