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* [PATCH] MAINTAINERS: fix email for S3C2410 and S3C2440Ben Dooks2006-12-221-2/+2
| | | | | | | | | Change the email address for the S3C2410 and S3C2440 maintainer. The old addresses have been deleted due to spam issues. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] microcode: fix mc_cpu_notifier section warningJean Delvare2006-12-221-1/+1
| | | | | | | | | | | | | Structure mc_cpu_notifier references a __cpuinit function, but isn't declared __cpuinitdata itself: WARNING: arch/i386/kernel/microcode.o - Section mismatch: reference to .init.text: from .data after 'mc_cpu_notifier' (at offset 0x118) Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] schedule_timeout(): improve warning messageAndrew Morton2006-12-221-4/+3
| | | | | | | | | Kyle is hitting this warning, and we don't have a clue what it's caused by. Add the obligatory dump_stack(). Cc: kyle <kylewong@southa.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] gss_spkm3: fix error handling in module initAkinobu Mita2006-12-221-1/+1
| | | | | | | | | | | | Return error and prevent from loading module when gss_mech_register() failed. Cc: Andy Adamson <andros@citi.umich.edu> Cc: J. Bruce Fields <bfields@citi.umich.edu> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] audit: fix kstrdup() error checkAkinobu Mita2006-12-221-2/+2
| | | | | | | | | | kstrdup() returns NULL on error. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] compile error of register_memory()Yasunori Goto2006-12-223-3/+3
| | | | | | | | | | | | | register_memory() becomes double definition in 2.6.20-rc1. It is defined in arch/i386/kernel/setup.c as static definition in 2.6.19. But it is moved to arch/i386/kernel/e820.c in 2.6.20-rc1. And same name function is defined in driver/base/memory.c too. So, it becomes cause of compile error of duplicate definition if memory hotplug option is on. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] handle SLOB with sparsemenYasunori Goto2006-12-221-1/+1
| | | | | | | | | | | This is to disallow to make SLOB with SMP or SPARSEMEM. This avoids latent troubles of SLOB with SLAB_DESTROY_BY_RCU. And fix compile error. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.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: more rmap debuggingNick Piggin2006-12-225-8/+15
| | | | | | | | | Add more debugging in the rmap code in an attempt to locate to source of the occasional "mapcount went negative" assertions. Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix aoe without scatter-gather [Bug 7662]Ed L. Cashin2006-12-221-7/+6
| | | | | | | | | | | | | | | | | | | | Fix a bug that only appears when AoE goes over a network card that does not support scatter-gather. The headers in the linear part of the skb appeared to be larger than they really were, resulting in data that was offset by 24 bytes. This patch eliminates the offset data on cards that don't support scatter-gather or have had scatter-gather turned off. There remains an unrelated issue that I'll address in a separate email. Fixes bugzilla #7662 Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Cc: <stable@kernel.org> Cc: Greg KH <greg@kroah.com> Cc: <boddingt@optusnet.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add a new section to CodingStyle, promoting include/linux/kernel.hRobert P. J. Day2006-12-221-0/+18
| | | | | | | | | | | | Add a new section to the CodingStyle file, encouraging people not to re-invent available kernel macros such as ARRAY_SIZE(), FIELD_SIZEOF(), min() and max(), among others. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make JFFS depend on CONFIG_BROKENJosh Boyer2006-12-221-1/+4
| | | | | | | | | Mark JFFS as broken and provide a warning to users that it is deprecated and scheduled for removal in 2.6.21 Signed-off-by: Josh Boyer <jwboyer@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lock debugging: fix DEBUG_LOCKS_WARN_ON() & debug_locks_silentIngo Molnar2006-12-221-1/+1
| | | | | | | | | | | Matthew Wilcox noticed that the debug_locks_silent use should be inverted in DEBUG_LOCKS_WARN_ON(). This bug was causing spurious stacktraces and incorrect failures in the locking self-test on the parisc kernel. Bug-found-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fsstack: Remove inode copyMichael Halcrow2006-12-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trevor found a file size problem in eCryptfs in recent kernels, and he tracked it down to an fsstack change. This was the eCryptfs copy_attr_all: > -void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src) > -{ > - dest->i_mode = src->i_mode; > - dest->i_nlink = src->i_nlink; > - dest->i_uid = src->i_uid; > - dest->i_gid = src->i_gid; > - dest->i_rdev = src->i_rdev; > - dest->i_atime = src->i_atime; > - dest->i_mtime = src->i_mtime; > - dest->i_ctime = src->i_ctime; > - dest->i_blkbits = src->i_blkbits; > - dest->i_flags = src->i_flags; > -} This is the fsstack copy_attr_all: > +void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, > + int (*get_nlinks)(struct inode *)) > +{ > + if (!get_nlinks) > + dest->i_nlink = src->i_nlink; > + else > + dest->i_nlink = (*get_nlinks)(dest); > + > + dest->i_mode = src->i_mode; > + dest->i_uid = src->i_uid; > + dest->i_gid = src->i_gid; > + dest->i_rdev = src->i_rdev; > + dest->i_atime = src->i_atime; > + dest->i_mtime = src->i_mtime; > + dest->i_ctime = src->i_ctime; > + dest->i_blkbits = src->i_blkbits; > + dest->i_flags = src->i_flags; > + > + fsstack_copy_inode_size(dest, src); > +} The addition of copy_inode_size breaks eCryptfs, since eCryptfs needs to interpolate the file sizes (eCryptfs has extra space in the lower file for the header). The setting of the upper inode size occurs elsewhere in eCryptfs, and the new copy_attr_all now undoes what eCryptfs was doing right beforehand. I see three ways of going forward from here. (1) Something like this patch needs to go in (assuming it jives with Unionfs), (2) we need to make a change to the fsstack API for more fine-grained control over copying attributes (e.g., by also including a callback function for calculating the right file size, which will require some more work on both eCryptfs and Unionfs), or (3) the fsstack patch on eCryptfs (commit 0cc72dc7f050188d8d7344b1dd688cbc68d3cd30 made on Fri Dec 8 02:36:31 2006 -0800) needs to be yanked in 2.6.20. I think the simplest solution, from eCryptfs' perspective, is to just remove the inode size copy. Remove inode size copy in general fsstack attr copy code. Stacked filesystems may need to interpolate the inode size, since the file size in the lower file may be different than the file size in the stacked layer. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Acked-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] smc911 workqueue fixesAndrew Morton2006-12-221-7/+14
| | | | | | | | | Teach this driver about the workqueue changes. Cc: Vitaly Wool <vitalywool@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] smc911x: fix netpoll compilation faliureVitaly Wool2006-12-221-1/+1
| | | | | | | | | | Fix the compilation failure for smc911x.c when NET_POLL_CONTROLLER is set. Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] genirq: fix irq flow handler uninstallThomas Gleixner2006-12-221-2/+1
| | | | | | | | | | | | | | The sanity check for no_irq_chip in __set_irq_hander() is unconditional on both install and uninstall of an handler. This triggers false warnings and replaces no_irq_chip by dummy_irq_chip in the uninstall case. Check only, when a real handler is installed. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix vm_events_fold_cpu() build breakageMagnus Damm2006-12-221-0/+6
| | | | | | | | | | | | | | | | | | | | fix vm_events_fold_cpu() build breakage 2.6.20-rc1 does not build properly if CONFIG_VM_EVENT_COUNTERS is set and CONFIG_HOTPLUG is unset: CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 mm/built-in.o: In function `page_alloc_cpu_notify': page_alloc.c:(.text+0x56eb): undefined reference to `vm_events_fold_cpu' make: *** [.tmp_vmlinux1] Error 1 [akpm@osdl.org: cleanup] Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sched: remove __cpuinitdata anotation to cpu_isolated_mapTim Chen2006-12-221-1/+1
| | | | | | | | | | | | | | The structure cpu_isolated_map is used not only during initialization. Multi-core scheduler configuration changes and exclusive cpusets use this during run time. During setting of sched_mc_power_savings policy, this structure is accessed to update sched_domains. Signed-off-by: Tim Chen <tim.c.chen@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add cscope generated files to .gitignoreTobias Klauser2006-12-221-0/+3
| | | | | | | | Ignore files generated by 'make cscope' Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix swapped parameters in mm/vmscan.cNigel Cunningham2006-12-221-2/+2
| | | | | | | | | | | | | The version of mm/vmscan.c in Linus' current tree has swapped parameters in the shrink_all_zones declaration and call, used by the various suspend-to-disk implementations. This doesn't seem to have any great adverse effect, but it's clearly wrong. Signed-off-by: Nigel Cunningham <nigel@suspend2.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/sysv/: proper prototypes for 2 functionsAdrian Bunk2006-12-222-3/+3
| | | | | | | | | Add proper prototypes for sysv_{init,destroy}_icache() in sysv.h Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] make kernel/printk.c:ignore_loglevel_setup() staticAdrian Bunk2006-12-221-1/+1
| | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix kernel-doc warnings in 2.6.20-rc1Randy Dunlap2006-12-226-4/+7
| | | | | | | | Fix kernel-doc warnings in 2.6.20-rc1. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] slab: fix kmem_ptr_validate definitionChristoph Lameter2006-12-221-1/+1
| | | | | | | | | | The declaration of kmem_ptr_validate in slab.h does not match the one in slab.c. Remove the fastcall attribute (this is the only use in slab.c). Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] rtc warning fixAndrew Morton2006-12-221-1/+6
| | | | | | | | drivers/char/rtc.c:116: warning: 'hpet_rtc_interrupt' defined but not used Cc: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix for shmem_truncate_range() BUG_ON()Badari Pulavarty2006-12-221-1/+6
| | | | | | | | | | | | | | Ran into BUG() while doing madvise(REMOVE) testing. If we are punching a hole into shared memory segment using madvise(REMOVE) and the entire hole is below the indirect blocks, we hit following assert. BUG_ON(limit <= SHMEM_NR_DIRECT); Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Conditionally check expected_preempt_count in __resched_legal()Mark Fasheh2006-12-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | Commit 2d7d253548cffdce80f4e03664686e9ccb1b0ed7 ("fix cond_resched() fix") introduced an 'expected_preempt_count' parameter to __resched_legal() to fix a bug where it was returning a false negative when called from cond_resched_lock() and preemption was enabled. Unfortunately this broke things for when preemption is disabled. preempt_count() will always return zero, thus failing the check against any value of expected_preempt_count not equal to zero. cond_resched_lock() for example, passes an expected_preempt_count value of 1. So fix the fix for the cond_resched() fix by skipping the check of preempt_count() against expected_preempt_count when preemption is disabled. Credit should go to Sunil Mushran for spotting the bug during testing. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] CONFIG_VM_EVENT_COUNTER comment decrustifyPaul Jackson2006-12-222-6/+7
| | | | | | | | | | | | | | | | The VM event counters, enabled by CONFIG_VM_EVENT_COUNTERS, which provides VM event counters in /proc/vmstat, has become more essential to non-EMBEDDED kernel configurations than they were in the past. Comments in the code and the Kconfig configuration explanation were stale, downplaying their role excessively. Refresh those comments to correctly reflect the current role of VM event counters. Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: API versioningAvi Kivity2006-12-222-0/+6
| | | | | | | | Add compile-time and run-time API versioning. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: Handle p5 mce msrsMichael Riepe2006-12-222-0/+4
| | | | | | | | | This allows plan9 to get a little further booting. Signed-off-by: Michael Riepe <michael@mr511.de> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: Force real-mode cs limit to 64KMichael Riepe2006-12-221-0/+1
| | | | | | | | | This allows opensolaris to boot on kvm/intel. Signed-off-by: Michael Riepe <michael@mr511.de> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: Do not export unsupported msrs to userspaceMichael Riepe2006-12-221-3/+24
| | | | | | | | | | | | Some msrs, such as MSR_STAR, are not available on all processors. Exporting them causes qemu to try to fetch them, which will fail. So, check all msrs for validity at module load time. Signed-off-by: Michael Riepe <michael@mr511.de> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: Use more traditional error handling in kvm_mmu_init()Avi Kivity2006-12-221-6/+12
| | | | | | Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: AMD SVM: Save and restore the floating point unit stateAvi Kivity2006-12-221-0/+9
| | | | | | | | Fixes sf bug 1614113 (segfaults in nbench). Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: AMD SVM: handle MSR_STAR in 32-bit modeAvi Kivity2006-12-221-5/+5
| | | | | | | | This is necessary for linux guests. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] KVM: add valid_vcpu() helperJames Morris2006-12-221-9/+14
| | | | | | | | | | Consolidate the logic for checking whether a vcpu index is valid. Also, use likely(), as a valid value should be the overwhelmingly common case. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] truncate: dirty memory accounting fixAndrew Morton2006-12-221-1/+2
| | | | | | | | | Only (un)account for IO and page-dirtying for devices which have real backing store (ie: not tmpfs or ramdisks). Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] elevator: fixup typo in merge logicJens Axboe2006-12-211-1/+1
| | | | | | | | | | | | The recent io scheduler allow_merge commit left the block layer with no merging, oops. This patch fixes that up. That means the CFQ change needs to be verified again, it might not fix the original bug now. But that's a seperate thing, I'll double check that tomorrow. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] truncate: clear page dirtiness before running try_to_free_buffers()Andrew Morton2006-12-211-4/+5
| | | | | | | | | | | | | | | | | | | | | truncate presently invalidates the dirty page's buffer_heads then shoots down the page. But try_to_free_buffers() will now bale out because the page is dirty. Net effect: the LRU gets filled with dirty pages which have invalidated buffer_heads attached. They have no ->mapping and hence cannot be cleaned. The machine leaks memory at an enormous rate. Fix this by cleaning the page before running try_to_free_buffers(), so try_to_free_buffers() can do its work. Also, remember to do dirty-page-acoounting in cancel_dirty_page() so the machine won't wedge up trying to write non-existent dirty pages. Probably still wrong, but now less so. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix XFS after clear_page_dirty() removalDavid Chinner2006-12-211-2/+2
| | | | | | | | | | | | | | XFS appears to call clear_page_dirty to get the mapping tree dirty tag set correctly at the same time the page dirty flag is cleared. I note that this can be done by set_page_writeback() if we clear the dirty flag on the page first when we are writing back the entire page. Hence it seems to me that the XFS call to clear_page_dirty() could easily be substituted by clear_page_dirty_for_io() followed by a call to set_page_writeback() to get the mapping tree tags set correctly after the page has been marked clean. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fuse: remove clear_page_dirty() callMiklos Szeredi2006-12-211-3/+1
| | | | | | | | | | | The use by FUSE was just a remnant of an optimization from the time when writable mappings were supported. Now FUSE never actually allows the creation of dirty pages, so this invocation of clear_page_dirty() is effectively a no-op. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix JFS after clear_page_dirty() removalDave Kleikamp2006-12-211-14/+1
| | | | | | | | | | | | | | | | | This patch removes some questionable code that attempted to make a no-longer-used page easier to reclaim. Calling metapage_writepage against such a page will not result in any I/O being performed, so removing this code shouldn't be a big deal. [ It's likely that we could have just replaced the "clear_page_dirty()" call with a call to "cancel_dirty_page()" instead, but in the meantime this is cleaner and simpler anyway, so unless there is some overriding reason (and Dave implies there isn't) I'll just use this patch as-is. - Linus ] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* VM: Remove "clear_page_dirty()" and "test_clear_page_dirty()" functionsLinus Torvalds2006-12-214-47/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They were horribly easy to mis-use because of their tempting naming, and they also did way more than any users of them generally wanted them to do. A dirty page can become clean under two circumstances: (a) when we write it out. We have "clear_page_dirty_for_io()" for this, and that function remains unchanged. In the "for IO" case it is not sufficient to just clear the dirty bit, you also have to mark the page as being under writeback etc. (b) when we actually remove a page due to it becoming inaccessible to users, notably because it was truncate()'d away or the file (or metadata) no longer exists, and we thus want to cancel any outstanding dirty state. For the (b) case, we now introduce "cancel_dirty_page()", which only touches the page state itself, and verifies that the page is not mapped (since cancelling writes on a mapped page would be actively wrong as it is still accessible to users). Some filesystems need to be fixed up for this: CIFS, FUSE, JFS, ReiserFS, XFS all use the old confusing functions, and will be fixed separately in subsequent commits (with some of them just removing the offending logic, and others using clear_page_dirty_for_io()). This was confirmed by Martin Michlmayr to fix the apt database corruption on ARM. Cc: Martin Michlmayr <tbm@cyrius.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Andrei Popa <andrei.popa@i-neo.ro> Cc: Andrew Morton <akpm@osdl.org> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Gordon Farquharson <gordonfarquharson@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Clean up and make try_to_free_buffers() not race with dirty pagesLinus Torvalds2006-12-211-17/+1
| | | | | | | | | This is preparatory work in our continuing saga on some hard-to-trigger file corruption with shared writable mmap() after the dirty page tracking changes (commit d08b3851da41d0ee60851f2c75b118e1f7a5fc89 etc) were merged. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] workqueue: fix schedule_on_each_cpu()Ingo Molnar2006-12-211-3/+5
| | | | | | | | | | | fix the schedule_on_each_cpu() implementation: __queue_work() is now stricter, hence set the work-pending bit before passing in the new work. (found in the -rt tree, using Peter Zijlstra's files-lock scalability patchset) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix leaks on pipe(2) failure exitsAl Viro2006-12-211-1/+4
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds2006-12-212-2/+4
|\ | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: [GFS2] Fix Kconfig [DLM] fix compile warning
| * [GFS2] Fix KconfigSteven Whitehouse2006-12-151-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is a patch to fix up the Kconfig so that we don't land up with problems when people disable the NET subsystem. Thanks for all the hints and suggestions that people have sent me regarding this. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Aleksandr Koltsoff <czr@iki.fi> Cc: Toralf Förster <toralf.foerster@gmx.de> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Adrian Bunk <bunk@stusta.de> Cc: Chris Zubrzycki <chris@middle--earth.org> Cc: Patrick Caulfield <pcaulfie@redhat.com>
| * [DLM] fix compile warningPatrick Caulfield2006-12-151-1/+1
| | | | | | | | | | | | | | | | This patch fixes a compile warning in lowcomms-tcp.c indicating that kmem_cache_t is deprecated. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [PATCH] sched: improve efficiency of sched_fork()Peter Williams2006-12-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: sched_fork() has always called scheduler_tick() in some (unlikely) circumstances in order to update the current task in light of those circumstances. It has always been the case that the work done by scheduler_tick() was more than was required to handle the problem in hand but no harm was done except for the waste of a few CPU cycles. However, the splitting of scheduler_tick() into two procedures in 2.6.20-rc1 enables the wasted cycles to be saved as the new procedure task_running_tick() does all the work that is required to rectify the problem being handled. Solution: Replace the call to scheduler_tick() in sched_fork() with a call to task_running_tick(). Signed-off-by: Peter Williams <pwil3058@bigpond.com.au> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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