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* [PATCH] irq: fixed coding styleYoichi Yuasa2006-09-291-1/+1
| | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] use gcc -O1 in fs/reiserfs only for ancient gcc versionsOlaf Hering2006-09-291-1/+1
| | | | | | | | | | Only compile with -O1 if the (very old) compiler is broken. We use reiserfs alot since SLES9 on ppc64, and it was never seen with gcc33. Assume the broken gcc is gcc-3.4 or older. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] OMAP: Update OMAP1/2 boards to give keymapsize and other pdataKomal Shah2006-09-298-23/+41
| | | | | | | | | | | This patch adds keymapsize, delay and debounce flag in the keypad platform data for various TI OMAP1/2 based boards like F-sample, H2, H3, Innovator, Nokia770, OSK, Perseus and H4. Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] OMAP: Add keypad driverKomal Shah2006-09-294-0/+505
| | | | | | | | | | | | This patch adds support for keypad driver running on different TI OMAP(http://www.ti.com/omap) processor based boards like OSK, H2, H3, H4, Persuas and Nokia 770. Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] OMAP: Add Watchdog driver supportKomal Shah2006-09-294-0/+463
| | | | | | | | | | | Add Texas Instruments (TI) OMAP1/2 (http://www.ti.com/omap) based processors, like OMAP1610/1710/242x. [akpm@osdl.org: cleanups] Cc: <gdavis@mvista.com> Cc: "Komal Shah" <komal_shah802003@yahoo.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] OMAP: Add smc91x support for TI OMAP2420 H4 boardKomal Shah2006-09-291-0/+1
| | | | | | | | | Add smc91x support for TI OMAP2420 H4 EVM board. Cc: <nico@cam.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] spinlock_debug: don't recompute (jiffies_per_loop * HZ) in spinloopChuck Ebbert2006-09-291-6/+9
| | | | | | | | | | | | In spinlock_debug.c, the spinloops call __delay() on every iteration. Because that is an external function, (jiffies_per_loop * HZ), the loop's iteration limit, gets recomputed every time. Caching it explicitly prevents that. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix parameter names in drivers/base/class.cRolf Eike Beer2006-09-291-4/+4
| | | | | | | | | | Change parameter names to match arguments of functions. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Martin Waitz <tali@admingilde.org> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Include documentation for functions in drivers/base/class.cRolf Eike Beer2006-09-291-0/+1
| | | | | | | | | | | drivers/base/class.c is omitted by "make *docs". Add it to get documentation for class_create() and friends for free. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Martin Waitz <tali@admingilde.org> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kthread: convert loop.c to kthreadSerge E. Hallyn2006-09-292-48/+26
| | | | | | | | | | | | | | Convert loop.c from the deprecated kernel_thread to kthread. This patch simplifies the code quite a bit and passes similar testing to the previous submission on both emulated x86 and s390. Changes since last submission: switched to using a rather simple loop based on wait_event_interruptible. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kernel-doc: move filesystems togetherRandy Dunlap2006-09-291-39/+39
| | | | | | | | Move all VFS + filesystem docs together. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kernel-doc for relay interfaceRandy Dunlap2006-09-292-14/+38
| | | | | | | | | | Add relay interface support to DocBook/kernel-api.tmpl. Fix typos etc. in relay.c and relayfs.txt. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] libfs: remove page up-to-date check from simple_readpagePekka J Enberg2006-09-291-9/+1
| | | | | | | | | | | | Remove the unnecessary PageUptodate check from simple_readpage. The only two callers for ->readpage that don't have explicit PageUptodate check are read_cache_pages and page_cache_read which operate on newly allocated pages which don't have the flag set. [akpm: use the allegedly-faster clear_page(), too] Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make net48xx-led use scx200_gpio_opsChris Boot2006-09-291-5/+4
| | | | | | | | | Make the next48xx LED code use scx200_gpio_ops instead of raw SCx200 GPIO accesses. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] scx200_gpio export cleanupsChris Boot2006-09-292-1/+2
| | | | | | | | | Use EXPORT_SYMBOL_GPL for new symbols, and declare the struct in the header file for access by other modules. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Let WARN_ON/WARN_ON_ONCE return the conditionHerbert Xu2006-09-292-21/+23
| | | | | | | | | | | | | | | | | | | | | | | | | Letting WARN_ON/WARN_ON_ONCE return the condition means that you could do if (WARN_ON(blah)) { handle_impossible_case } Rather than if (unlikely(blah)) { WARN_ON(1) handle_impossible_case } I checked all the newly added WARN_ON_ONCE users and none of them test the return status so we can still change it. [akpm@osdl.org: warning fix] [akpm@osdl.org: build fix] Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] drivers/char/pc8736x_gpio.c: remove unused static functionsAdrian Bunk2006-09-291-10/+0
| | | | | | | | | | drivers/char/pc8736x_gpio.c:192: warning: #pc8736x_gpio_set_high# defined but not used drivers/char/pc8736x_gpio.c:197: warning: #pc8736x_gpio_set_low# defined but not used Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] drivers/char/scx200_gpio.c: make code staticJim Cromie2006-09-291-1/+1
| | | | | | | | | This patch makes a needlessly global variable static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove unnecessary barrier in rtc_get_rtc_timeSteven Rostedt2006-09-291-3/+1
| | | | | | Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make touch_nmi_watchdog imply touch_softlockup_watchdog on all archsMichal Schmidt2006-09-292-4/+2
| | | | | | | | | | | | | | | | | touch_nmi_watchdog() calls touch_softlockup_watchdog() on both architectures that implement it (i386 and x86_64). On other architectures it does nothing at all. touch_nmi_watchdog() should imply touch_softlockup_watchdog() on all architectures. Suggested by Andi Kleen. [heiko.carstens@de.ibm.com: s390 fix] Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz> Cc: Andi Kleen <ak@muc.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Michal Schmidt <xschmi00@stud.feec.vutbr.cz> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] list_del debug checkManfred Spraul2006-09-291-5/+7
| | | | | | | | | | A list_del() debugging check. Has been in -mm for years. Dave moved list_del() out-of-line in the debug case, so this is now suitable for mainline. Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Debug variants of linked list macrosDave Jones2006-09-294-0/+102
| | | | | | Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] make PROT_WRITE imply PROT_READJason Baron2006-09-299-10/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make PROT_WRITE imply PROT_READ for a number of architectures which don't support write only in hardware. While looking at this, I noticed that some architectures which do not support write only mappings already take the exact same approach. For example, in arch/alpha/mm/fault.c: " if (cause < 0) { if (!(vma->vm_flags & VM_EXEC)) goto bad_area; } else if (!cause) { /* Allow reads even for write-only mappings */ if (!(vma->vm_flags & (VM_READ | VM_WRITE))) goto bad_area; } else { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; } " Thus, this patch brings other architectures which do not support write only mappings in-line and consistent with the rest. I've verified the patch on ia64, x86_64 and x86. Additional discussion: Several architectures, including x86, can not support write-only mappings. The pte for x86 reserves a single bit for protection and its two states are read only or read/write. Thus, write only is not supported in h/w. Currently, if i 'mmap' a page write-only, the first read attempt on that page creates a page fault and will SEGV. That check is enforced in arch/blah/mm/fault.c. However, if i first write that page it will fault in and the pte will be set to read/write. Thus, any subsequent reads to the page will succeed. It is this inconsistency in behavior that this patch is attempting to address. Furthermore, if the page is swapped out, and then brought back the first read will also cause a SEGV. Thus, any arbitrary read on a page can potentially result in a SEGV. According to the SuSv3 spec, "if the application requests only PROT_WRITE, the implementation may also allow read access." Also as mentioned, some archtectures, such as alpha, shown above already take the approach that i am suggesting. The counter-argument to this raised by Arjan, is that the kernel is enforcing the write only mapping the best it can given the h/w limitations. This is true, however Alan Cox, and myself would argue that the inconsitency in behavior, that is applications can sometimes work/sometimes fails is highly undesireable. If you read through the thread, i think people, came to an agreement on the last patch i posted, as nobody has objected to it... Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Andi Kleen <ak@muc.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Ian Molton <spyro@f2s.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/namespace: handle init/registration errorsRandy Dunlap2006-09-291-2/+10
| | | | | | | | Check and handle init errors. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] block: handle subsystem_register() init errorsRandy Dunlap2006-09-291-2/+7
| | | | | | | | | Check and handle init errors. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] blockdev.c: check driver layer errorsAndrew Morton2006-09-291-12/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check driver layer errors. Fix from: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com> In blockdevc-check-errors.patch, add_bd_holder() is modified to return error values when some of its operation failed. Among them, it returns -EEXIST when a given bd_holder object already exists in the list. However, in this case, the function completed its work successfully and need no action by its caller other than freeing unused bd_holder object. So I think it's better to return success after freeing by itself. Otherwise, bd_claim-ing with same claim pointer will fail. Typically, lvresize will fails with following message: device-mapper: reload ioctl failed: Invalid argument and you'll see messages like below in kernel log: device-mapper: table: 254:13: linear: dm-linear: Device lookup failed device-mapper: ioctl: error adding target to table Similarly, it should not add bd_holder to the list if either one of symlinking fails. I don't have a test case for this to happen but it should cause dereference of freed pointer. If a matching bd_holder is found in bd_holder_list, add_bd_holder() completes its job by just incrementing the reference count. In this case, it should be considered as success but it used to return 'fail' to let the caller free temporary bd_holder. Fixed it to return success and free given object by itself. Also, if either one of symlinking fails, the bd_holder should not be added to the list so that it can be discarded later. Otherwise, the caller will free bd_holder which is in the list. Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kernel/params: driver layer error checkingRandy Dunlap2006-09-291-2/+11
| | | | | | | | Check driver layer return values in kernel/params.c Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: remove pte_mkexecJeff Dike2006-09-292-8/+4
| | | | | | | | | | | | Andi is making pte_mkexec go away, and UML had one of the last uses. This removes the use and the definition. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: don't roll my own random MAC generatorJeff Dike2006-09-293-34/+1
| | | | | | | | | Use the existing random_ether_addr() instead of cooking up my own version. Pointed out by Dave Hollis and Jason Lunz. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: remove unneeded fileJeff Dike2006-09-291-484/+0
| | | | | | | | | | Remove arch/um/kernel/skas/process_kern.c again. The stack alignment change which resulted in this file being here is safely in arch/um/kernel/process.c. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: stack consumption reductionJeff Dike2006-09-292-5/+14
| | | | | | | | Fix some stack abuse in the sysrq t path. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: close file descriptor leaksJeff Dike2006-09-292-8/+7
| | | | | | | | | | Close two file descriptor leaks, one in the ubd driver and one to /proc/mounts. The ubd driver bug also leaked some vmalloc space. The /proc/mounts leak was a descriptor that was just never closed. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: locking documentationJeff Dike2006-09-295-2/+14
| | | | | | | | | | | | Some locking documentation and a cleanup. uml_exitcode is copied into a local before sprintf sees it, in case sprintf does anything non-atomic with it. The rest are comments about why certain globals don't need any kind of locking. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: mechanical tidying after random MACs changeJeff Dike2006-09-293-80/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mechanical, hopefully non-functional changes stemming from setup_etheraddr always succeeding now that it always assigns a MAC, either from the command line or generated randomly: the test of the return of setup_etheraddr is removed, and code dependent on it succeeding is now unconditional setup_etheraddr can now be made void struct uml_net.have_mac is now always 1, so tests of it can be similarly removed, and uses of it can be replaced with 1 struct uml_net.have_mac is no longer used, so it can be removed struct uml_net_private.have_mac is copied from struct uml_net, so it is always 1 tests of uml_net_private.have_mac can be removed uml_net_private.have_mac can now be removed the only call to dev_ip_addr was removed, so it can be deleted It also turns out that setup_etheraddr is called only once, from the same file, so it can be static and its declaration removed from net_kern.h. Similarly, set_ether_mac is defined and called only from one file. Finally, setup_etheraddr and set_ether_mac were moved to avoid needing forward declarations. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: assign random MACs to interfaces if necessaryJeff Dike2006-09-293-18/+46
| | | | | | | | | | | | | | | | | | | | | | Assign a random MAC to an ethernet interface if one was not provided on the command line. This became pressing when distros started bringing interfaces up before assigning IPs to them. The previous pattern of assigning an IP then bringing it up allowed the MAC to be generated from the first IP assigned. However, once the thing is up, it's probably a bad idea to change the MAC, so the MAC stayed initialized to fe:fd:0:0:0:0. Now, if there is no MAC from the command line, one is generated. We use the microseconds from gettimeofday (20 bits), plus the low 12 bits of the pid to seed the random number generator. random() is called twice, with 16 bits of each result used. I didn't want to have to try to fill in 32 bits optimally given an arbitrary RAND_MAX, so I just assume that it is greater than 65536 and use 16 bits of each random() return. There is also a bit of reformatting and whitespace cleanup here. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] convert i386 Summit subarch to use SRAT info for apicid_to_node callskeith mannthey2006-09-294-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | Convert the i386 summit subarch apicid_to_node to use node information provided by the SRAT. It was discussed a little on LKML a few weeks ago and was seen as an acceptable fix. The current way of obtaining the nodeid static inline int apicid_to_node(int logical_apicid) { return logical_apicid >> 5; } is just not correct for all summit systems/bios. Assuming the apicid matches the Linux node number require a leap of faith that the bios mapped out the apicids a set way. Modern summit HW (IBM x460) does not layout its bios in the manner for various reasons and is unable to boot i386 numa. The best way to get the correct apicid to node information is from the SRAT table during boot. It lays out what apicid belongs to what node. I use this information to create a table for use at run time. Signed-off-by: Keith Mannthey <kmannth@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SELinux: support mls categories for context mountsCory Olmo2006-09-291-5/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allows commas to be embedded into context mount options (i.e. "-o context=some_selinux_context_t"), to better support multiple categories, which are separated by commas and confuse mount. For example, with the current code: mount -t iso9660 /dev/cdrom /media/cdrom -o \ ro,context=system_u:object_r:iso9660_t:s0:c1,c3,c4,exec The context option that will be interpreted by SELinux is context=system_u:object_r:iso9660_t:s0:c1 instead of context=system_u:object_r:iso9660_t:s0:c1,c3,c4 The options that will be passed on to the file system will be ro,c3,c4,exec. The proposed solution is to allow/require the SELinux context option specified to mount to use quotes when the context contains a comma. This patch modifies the option parsing in parse_opts(), contained in mount.c, to take options after finding a comma only if it hasn't seen a quote or if the quotes are matched. It also introduces a new function that will strip the quotes from the context option prior to translation. The quotes are replaced after the translation is completed to insure that in the event the raw context contains commas the kernel will be able to interpret the correct context. Signed-off-by: Cory Olmo <colmo@TrustedCS.com> Signed-off-by: James Morris <jmorris@namei.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: make filemap_nopage use NOPAGE_SIGBUSAdam Litke2006-09-291-3/+3
| | | | | | | | | Don't open-code NOPAGE_SIGBUS. Signed-off-by: Adam Litke <agl@us.ibm.com> Acked-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: fix a race condition under SMC + COWSiddha, Suresh B2006-09-291-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Failing context is a multi threaded process context and the failing sequence is as follows. One thread T0 doing self modifying code on page X on processor P0 and another thread T1 doing COW (breaking the COW setup as part of just happened fork() in another thread T2) on the same page X on processor P1. T0 doing SMC can endup modifying the new page Y (allocated by the T1 doing COW on P1) but because of different I/D TLB's, P0 ITLB will not see the new mapping till the flush TLB IPI from P1 is received. During this interval, if T0 executes the code created by SMC it can result in an app error (as ITLB still points to old page X and endup executing the content in page X rather than using the content in page Y). Fix this issue by first clearing the PTE and flushing it, before updating it with new entry. Hugh sayeth: I was a bit sceptical, in the habit of thinking that Self Modifying Code must look such issues itself: but I guess there's nothing it can do to avoid this one. Fair enough, what you're changing it to is pretty much what powerpc and s390 were already doing, and is a more robust way of proceeding, consistent with how ptes are set everywhere else. The ptep_clear_flush is a bit heavy-handed (it's anxious to return the pte that was atomically cleared), but we'd have to wander through lots of arches to get the right minimal behaviour. It'd also be nice to eliminate ptep_establish completely, now only used to define other macros/inlines: it always seemed obfuscation to me, what you've got there now is clearer. Let's put those cleanups on a TODO list. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: "David S. Miller" <davem@davemloft.net> Acked-by: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] convert s390 page handling macros to functionsHeiko Carstens2006-09-293-51/+46
| | | | | | | | | | | | Convert s390 page handling macros to functions. In particular this fixes a problem with s390's SetPageUptodate macro which uses its input parameter twice which again can cause subtle bugs. [akpm@osdl.org: build fix] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] JBD: memory leak in "journal_init_dev()"Zoltan Menyhart2006-09-291-11/+10
| | | | | | | | We leak a bh ref in "journal_init_dev()" in case of failure. Signed-off-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] JBD: Make journal_brelse_array() staticDave Kleikamp2006-09-292-2/+1
| | | | | | | | | | | | It's always good to make symbols static when we can, and this also eliminates the need to rename the function in jbd2 Suggested by Eric Sandeen. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix uninitialised spinlock in via-pmu-backlight code.David Woodhouse2006-09-291-1/+1
| | | | | | | | | | | | | The uninitialised pmu_backlight_lock causes the current Fedora test kernel (which has spinlock debugging enabled) to panic on suspend. This is suboptimal, so I fixed it. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michael Hanselmann <linux-kernel@hansmi.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove generic__raw_read_trylock()Matthew Wilcox2006-09-291-11/+0
| | | | | | | | | | | | | | If the cpu has the lock held for write, is interrupted, and the interrupt handler calls read_trylock(), it's an instant deadlock. Now, Dave Miller has subsequently pointed out that we don't have any situations where this can occur. Nevertheless, we should delete generic__raw_read_lock (and its associated EXPORT to make Arjan happy) so that nobody thinks they can use it. Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sys_getcpu() prototype annotatedAl Viro2006-09-291-1/+1
| | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] __percpu_alloc_mask() has to be __always_inline in UP caseAl Viro2006-09-291-1/+1
| | | | | | | | | | | | ... or we'll end up with cpu_online_map being evaluated on UP. In modules. cpumask.h is very careful to avoid that, and for a very good reason. So should we... PS: yes, it really triggers (on alpha). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-09-28247-1990/+3164
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (160 commits) [ETHTOOL]: Remove some entries from non-root command list. [Bluetooth]: Fix section mismatch of bt_sysfs_cleanup() [Bluetooth]: Don't update disconnect timer for incoming connections [ETHTOOL]: let mortals use ethtool [NetLabel]: add audit support for configuration changes [TCP]: Fix and simplify microsecond rtt sampling [TCP] tcp-lp: prevent chance for oops [SUNRPC]: Remove unnecessary check in net/sunrpc/svcsock.c [IPVS] bug: endianness breakage in ip_vs_ftp [IPVS]: ipvs annotations [NETFILTER]: h323 annotations [NETFILTER]: ipt annotations [NETFILTER]: NAT annotations [NETFILTER]: conntrack annotations [NETFILTER]: netfilter misc annotations [NET]: Annotate dst_ops protocol [NET]: is it Andy or Andi ?? [IPVS]: Make sure ip_vs_ftp ports are valid: module_param_array approach [IPVS]: Reverse valid ip_vs_ftp ports fix: port check approach [IrDA] stir4200: removing undocumented bits handling ...
| * [ETHTOOL]: Remove some entries from non-root command list.David S. Miller2006-09-281-4/+0
| | | | | | | | | | | | | | | | | | GWOL might provide passwords GSET, GLINK, and GSTATS might poke the hardware Based upon feedback from Jeff Garzik. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [Bluetooth]: Fix section mismatch of bt_sysfs_cleanup()Arnaud Patard2006-09-281-1/+1
| | | | | | | | | | | | | | | | | | | | The bt_sysfs_cleanup() is marked with __exit attribute, but it will be called from an __init function in the error case. So the __exit attribute must be removed. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [Bluetooth]: Don't update disconnect timer for incoming connectionsMarcel Holtmann2006-09-281-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | In the case of device pairing the only safe method is to establish a low-level ACL link. In this case, the remote side should not use the disconnect timer to give the other side the chance to enter the PIN code. If the disconnect timer is used, the connection will be dropped to soon, because it is impossible to identify an actual user of this link. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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