- 18 Dec, 2007 29 commits
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Jan Kara authored
Fix compilation warning about discarded const. Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Nishanth Aravamudan authored
The hugetlb documentation has gotten a bit out of sync with the current code. Updated the sysctl file to refer to Documentation/vm/hugetlbpage.txt. Update that file to contain the current state of affairs (with the newer named sysctl in place). Signed-off-by:
Nishanth Aravamudan <nacc@us.ibm.com> Acked-by:
Adam Litke <agl@us.ibm.com> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
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Nishanth Aravamudan authored
This reverts commit 54f9f80d ("hugetlb: Add hugetlb_dynamic_pool sysctl") Given the new sysctl nr_overcommit_hugepages, the boolean dynamic pool sysctl is not needed, as its semantics can be expressed by 0 in the overcommit sysctl (no dynamic pool) and non-0 in the overcommit sysctl (pool enabled). (Needed in 2.6.24 since it reverts a post-2.6.23 userspace-visible change) Signed-off-by:
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Nishanth Aravamudan authored
hugetlb: introduce nr_overcommit_hugepages sysctl While examining the code to support /proc/sys/vm/hugetlb_dynamic_pool, I became convinced that having a boolean sysctl was insufficient: 1) To support per-node control of hugepages, I have previously submitted patches to add a sysfs attribute related to nr_hugepages. However, with a boolean global value and per-mount quota enforcement constraining the dynamic pool, adding corresponding control of the dynamic pool on a per-node basis seems inconsistent to me. 2) Administration of the hugetlb dynamic pool with multiple hugetlbfs mount points is, arguably, more arduous than it needs to be. Each quota would need to be set separately, and the sum would need to be monitored. To ease the administration, and to help make the way for per-node control of the static & dynamic hugepage pool, I added a separate sysctl, nr_overcommit_hugepages. This value serves as a high watermark for the overall hugepage pool, while nr_hugepages serves as a low watermark. The boolean sysctl can then be removed, as the condition nr_overcommit_hugepages > 0 indicates the same administrative setting as hugetlb_dynamic_pool == 1 Quotas still serve as local enforcement of the size of the pool on a per-mount basis. A few caveats: 1) There is a race whereby the global surplus huge page counter is incremented before a hugepage has allocated. Another process could then try grow the pool, and fail to convert a surplus huge page to a normal huge page and instead allocate a fresh huge page. I believe this is benign, as no memory is leaked (the actual pages are still tracked correctly) and the counters won't go out of sync. 2) Shrinking the static pool while a surplus is in effect will allow the number of surplus huge pages to exceed the overcommit value. As long as this condition holds, however, no more surplus huge pages will be allowed on the system until one of the two sysctls are increased sufficiently, or the surplus huge pages go out of use and are freed. Successfully tested on x86_64 with the current libhugetlbfs snapshot, modified to use the new sysctl. Signed-off-by:
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Eric Sandeen authored
ecryptfs in 2.6.24-rc3 wasn't surviving fsx for me at all, dying after 4 ops. Generally, encountering problems with stale data and improperly zeroed pages. An extending truncate + write for example would expose stale data. With the changes below I got to a million ops and beyond with all mmap ops disabled - mmap still needs work. (A version of this patch on a RHEL5 kernel ran for over 110 million fsx ops) I added a few comments as well, to the best of my understanding as I read through the code. Signed-off-by:
Eric Sandeen <sandeen@redhat.com> Acked-by:
Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by:
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Nathan Lynch authored
bloat-o-meter assumes that a '.' anywhere in a symbol's name means that it is static and prepends 'static.' to the first part of the symbol name, discarding the portion of the name that follows the '.'. However, the names of function entry points begin with '.' in the ppc64 ABI. This causes all function text size changes to be accounted to a single 'static.' entry in the output when comparing ppc64 kernels. Change getsizes() to ignore the first character of the symbol name when searching for '.'. Signed-off-by:
Nathan Lynch <ntl@pobox.com> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by:
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Shannon Nelson authored
We can't use the device in a dev_err() after a kzalloc failure or after the kfree, so simplify it to the pdev that was originally passed in. Cc: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by:
Shannon Nelson <shannon.nelson@intel.com> Signed-off-by:
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Shannon Nelson authored
A few fixups from Andrew's code comments. - removed "static inline" forward-declares - changed use of min() to min_t() - removed some unnecessary NULL initializations - removed a couple of BUG() calls Fixes this: drivers/dma/ioat_dma.c: In function `ioat1_tx_submit': drivers/dma/ioat_dma.c:177: sorry, unimplemented: inlining failed in call to '__ioat1_dma_memcpy_issue_pending': function body not available drivers/dma/ioat_dma.c:268: sorry, unimplemented: called from here Signed-off-by:
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Eric Sandeen authored
eCryptfs wasn't setting s_blocksize in it's superblock; just pick it up from the lower FS. Having an s_blocksize of 0 made things like "filefrag" which call FIGETBSZ unhappy. Signed-off-by:
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Mel Gorman authored
In some cases the IO subsystem is able to merge requests if the pages are adjacent in physical memory. This was achieved in the allocator by having expand() return pages in physically contiguous order in situations were a large buddy was split. However, list-based anti-fragmentation changed the order pages were returned in to avoid searching in buffered_rmqueue() for a page of the appropriate migrate type. This patch restores behaviour of rmqueue_bulk() preserving the physical order of pages returned by the allocator without incurring increased search costs for anti-fragmentation. Signed-off-by:
Mel Gorman <mel@csn.ul.ie> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark Lord <mlord@pobox.com Signed-off-by:
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Adam Jackson authored
These types define the size of data read from /dev/apm_bios. They should not be hidden behind #ifdef __KERNEL__. This is killing my xserver compile, apm_event_t is used in the xserver source. Signed-off-by:
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Adrian Bunk authored
cpufreq_stats_free_table() mustn't be __cpuexit since it's called by the __cpuinit cpufreq_stat_cpu_callback(). This patch fixes the following section mismatch reported by Chris Clayton: WARNING: vmlinux.o(.init.text+0x143dd): Section mismatch: reference to .exit.text:cpufreq_stats_free_table (between 'cpufreq_stat_cpu_callback' and 'cpufreq_stats_init') Signed-off-by:
Adrian Bunk <bunk@kernel.org> Cc: Chris Clayton <chris2553@googlemail.com> Acked-by:
Dave Jones <davej@codemonkey.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Julia Lawall authored
The error handling code should undo the ioremap as well. The problem was detected using the following semantic match (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T,T1,T2; identifier E; statement S; expression x1,x2; constant C; int ret; @@ T E; ... * E = ioremap(...); if (E == NULL) S ... when != iounmap(E) when != if (E != NULL) { ... iounmap(E); ...} when != x1 = (T1)E if (...) { ... when != iounmap(E) when != if (E != NULL) { ... iounmap(E); ...} when != x2 = (T2)E ( * return; | * return C; | * return ret; ) } // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Olaf Hering <olaf@aepfle.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by:
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Dave Young authored
In kobject_register, the kobject reference is get in kobject_init, and then kobject_add. If kobject_add fail, it will only cleanup the reference got by itself. Signed-off-by:
Dave Young <hidave.darkstar@gmail.com> Reviewed-by:
Pekka Enberg <penberg@cs.helsinki.fi> Cc: Greg KH <greg@kroah.com> Cc: Peter Osterlund <petero2@telia.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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WANG Cong authored
Improve the error handling for mm/sparse.c::sparse_add_one_section(). And I see no reason to check 'usemap' until holding the 'pgdat_resize_lock'. [geoffrey.levand@am.sony.com: sparse_index_init() returns -EEXIST] Cc: Christoph Lameter <clameter@sgi.com> Acked-by:
Dave Hansen <haveblue@us.ibm.com> Cc: Rik van Riel <riel@redhat.com> Acked-by:
Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by:
WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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WANG Cong authored
Since sparse_index_alloc() can return NULL on memory allocation failure, we must deal with the failure condition when calling it. Signed-off-by:
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Dave Jones authored
Ingo hit some BUG_ONs that were probably caused by these missing unlocks causing an unbalance. He couldn't reproduce the bug reliably, so it's unknown that it's definitly fixing the problem he hit, but it's a fairly good chance, and this fixes an obvious bug. [ Dave: "Ingo followed up that he hit some lockdep related output with this applied, so it may not be right. I'll look at it after xmas if no-one has it figured out before then." Akpm: "It looks pretty correct to me though." ] Signed-off-by:Dave Jones <davej@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Ivan Kokshaysky authored
This fixes some of the alpha-specific build problems, except a) modpost warning about COMMON symbol "saved_config" and b) nasty final link failure with gcc-4.x, -Os and scsi-disk driver configured built-in (due to jump table in .rodata referencing discarded .exit.text). - build failure with gcc-4.2.x: fix up casts in cia_io* routines to avoid warnings ('discards qualifiers from pointer target type'), which are failures, thanks to -Werror; - modpost warnings: add missing __init qualifier for titan and marvel; for non-generic build, move machine vectors from .data to .data.init.refok section; - unbreak CPU-specific optimization: rearrange cpuflags-y assignments so that extended -mcpu value (ev56, pca56, ev67) overrides basic one (ev5, ev6) and not vice versa. Signed-off-by:Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by:
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Andries E. Brouwer authored
As it turns out, the kernel divides by EXT3_INODES_PER_GROUP(s) when mounting an ext3 filesystem. If that number is zero, a crash follows. Below a patch. This crash was reported by Joeri de Ruiter, Carst Tankink and Pim Vullers. Cc: <linux-ext4@vger.kernel.org> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Uwe Kleine-König authored
This was introduced in 4af8e944Signed-off-by:
Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Geoff Levand authored
SPARSEMEM_VMEMMAP needs to be a selectable config option to support building the kernel both with and without sparsemem vmemmap support. This selection is desirable for platforms which could be configured one way for platform specific builds and the other for multi-platform builds. Signed-off-by:
Miguel Botón <mboton@gmail.com> Signed-off-by:
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Sheela authored
Share net is not supported, Rusty is an "idiot" . Signed-off-by:
Sheela Sequeira <sheela.sequeira@gmail.com> Reviewed-by:
James Morris <jmorris@namei.org> Acked-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Eric Sandeen authored
ecryptfs_destroy_mount_crypt_stat() checks whether each auth_tok->global_auth_tok_key is nonzero and if so puts that key. However, in some early mount error paths nothing has initialized the pointer, and we try to key_put() garbage. Running the bad cipher tests in the testsuite exposes this, and it's happy with the following change. Signed-off-by:
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Eric Dumazet authored
While auditing proc_doulongvec_ms_jiffies_minmax() usage in kernel, I found a bug in drivers/parport/procfs.c, incorrectly using sizeof(int) instead of sizeof(unsigned long) Only 64bit arches are affected by this old bug. Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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David Brownell authored
Reorder at32_rtc_probe() so that it's safe (no oopsing) to fire the IRQ handler the instant that it's registered. (Bug noted via "Debug shared IRQ handlers" kernel debug option.) Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <hcegtvedt@atmel.com> Signed-off-by:
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Ivan Kokshaysky authored
First of all, thanks to Bob Tracy <rct@frus.com> and Michael Cree <mcree@orcon.net.nz> for testing. Especially to Bob, as he has done titanic multi-day git-bisect work that finally helped to reproduce and nail down the bug (http://bugzilla.kernel.org/show_bug.cgi?id=9457). [ev6-]stxncpy.S: it's t12, not t2 register that is supposed to contain the last byte offset upon return. As a result of wrong register use (which was my fault back in 2003, IIRC), under some circumstances extra terminating zero bytes were added to destination string. This particularly led to incorrect DEVPATH strings generated in uevent and therefore to udev problems. strncpy.S: unrelated bug I found while testing the above fix - destination is not properly zero-padded then a byte count exceeds source length. Actually this is addition to strncpy fix from last year. Signed-off-by:
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Stanislaw Gruszka authored
Sometimes when UML is debugged gdb miss breakpoints. When process traced by gdb do fork, debugger remove breakpoints from child address space. There is possibility to trace more than one fork, but this not work with UML, I guess (only guess) there is a deadlock - gdb waits for UML and UML waits for gdb. When clone() is called with SIGCHLD and CLONE_VM flags, gdb see this as PTRACE_EVENT_FORK not as PTRACE_EVENT_CLONE and remove breakpoints from child and at the same time from traced process, because either have the same address space. Maybe it is possible to do fix in gdb, but I'm not sure if there is easy way to find out if traced and child processes share memory. So I do fix for UML, it simply do not call clone() with both SIGCHLD and CLONE_VM flags together. Additionally __WALL flag is used for waitpid() to assure not miss clone and normal process events. [ jdike - checkpatch fixes ] Signed-off-by:
Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by:
Jeff Dike <jdike@linux.intel.com> Signed-off-by:
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Andrew Morton authored
Revert commit efa4d2fb ("Hibernation: Use temporary page tables for kernel text mapping on x86_64") because it causes my t61p to reboot right at the end of resume-from-disk. For reasons unknown at this time. Cc: Pavel Machek <pavel@ucw.cz> Cc: Andi Kleen <ak@suse.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Acked-by:
"Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by:
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Andrew Morton authored
make[3]: *** No rule to make target `/usr/src/devel/include/linux/ticable.h', needed by `/usr/src/devel/usr/include/linux/ticable.h'. Stop. Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by:
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- 17 Dec, 2007 11 commits
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git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds authored
* git://git.linux-nfs.org/pub/linux/nfs-2.6: MAINTAINERS: update the NFS CLIENT entry NFS: Fix an Oops in NFS unmount Revert "NFS: Ensure we return zero if applications attempt to write zero bytes" SUNRPC xprtrdma: fix XDR tail buf marshalling for all ops NFSv2/v3: Fix a memory leak when using -onolock NFS: Fix NFS mountpoint crossing...
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git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2Linus Torvalds authored
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: Re-journal buffers after transaction extend ocfs2: Allow for debugging of transaction extends ocfs2: Don't panic when truncating an empty extent ocfs2: fix exit-while-locked bug in ocfs2_queue_orphans()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Restore PCI expansion ROM P2P prefetch window creation
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: HOWTO: update misspelling and word incorrected add stable_api_nonsense.txt in korean HOWTO: change addresses of maintainer and lxr url for Korean HOWTO Add Documentation for FAIR_USER_SCHED sysfs files HOWTO: Change man-page maintainer address for Japanese HOWTO tipar: remove obsolete module kobject: fix the documentation of how kobject_set_name works
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: revert portions of "UNUSUAL_DEV: Sync up some reported devices from Ubuntu" usb: Remove broken optimisation in OHCI IRQ handler USB: at91_udc: correct hanging while disconnecting usb cable USB: use IRQF_DISABLED for HCD interrupt handlers USB: fix locking loop by avoiding flush_scheduled_work usb.h: fix kernel-doc warning USB: option: Bind to the correct interface of the Huawei E220 USB: cp2101: new device id usb-storage: Fix devices that cannot handle 32k transfers USB: sierra: fix product id
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide: fix ->io_32bit race in set_io_32bit() ide: remove stale changelog from ide-probe.c ide: remove stale changelog from ide-disk.c ide: remove dead code from __ide_dma_test_irq() hpt366: fix HPT37x PIO mode timings (take 2) pdc202xx_new: fix Promise TX4 support ide-cd: remove dead post_transform_command() ide: DMA reporting and validity checking fixes (take 3) ide: add /sys/bus/ide/devices/*/{model,firmware,serial} sysfs entries ide: coding style fixes for drivers/ide/setup-pci.c ide: fix ide_scan_pcibus() error message ide: deprecate CONFIG_BLK_DEV_OFFBOARD ide: add missing checks for control register existence ide-scsi: add ide_scsi_hex_dump() helper
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Mark Fasheh authored
ocfs2_extend_trans() might call journal_restart() which will commit dirty buffers and then restart the transaction. This means that any buffers which still need changes should be passed to journal_access() again. Some paths during extend weren't doing this right. Signed-off-by:Mark Fasheh <mark.fasheh@oracle.com>
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Mark Fasheh authored
The nastiest cases of transaction extends are also the rarest. We can expose them more quickly at the expense of performance by going straight to the journal_restart() in ocfs2_extend_trans(). Wrap things in OCFS2_DEBUG_FS so that we only do this when "expensive debugging" is turned on. Signed-off-by: -
Mark Fasheh authored
This BUG_ON() was unintentionally left in after the sparse file support was written. Signed-off-by: -
Mark Fasheh authored
We're holding the cluster lock when a failure might happen in ocfs2_dir_foreach() so it needs to be released. Signed-off-by: -
Greg Kroah-Hartman authored
This reverts one change from 67fa1062 that prevented userspace from seing the "driver disk" lun in a san disk device. The kernel shouldn't do this, it's up to userspace to handle this properly, if it somehow wants to filter this away. Cc: Ben Collins <bcollins@ubuntu.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Phil Dibowitz <phil@ipom.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Cc: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by:
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