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2006-04-25Don't include agp_backend.h in user-visible part of agpgart.hDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-25Include <linux/jiffies.h> from linux/acct.h only in kernel-private part.David Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-24[NETFILTER]: Fix compat_xt_counters alignment for non-x86Patrick McHardy
Some (?) non-x86 architectures require 8byte alignment for u_int64_t even when compiled for 32bit, using u_int32_t in compat_xt_counters breaks on these architectures, use u_int64_t for everything but x86. Reported by Andreas Schwab <schwab@suse.de>. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-20Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [EBTABLES]: Clean up vmalloc usage in net/bridge/netfilter/ebtables.c [NET]: Add skb->truesize assertion checking. [TCP]: Account skb overhead in tcp_fragment [SUNGEM]: Marvell PHY suspend. [LLC]: Use pskb_trim_rcsum() in llc_fixup_skb(). [NET]: sockfd_lookup_light() returns random error for -EBADFD
2006-04-20[PATCH] memory_hotplug.h cleanupAdrian Bunk
We don't have to #if guard prototypes. This also fixes a bug observed by Randy Dunlap due to a misspelled option in the #if. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-20[NET]: Add skb->truesize assertion checking.David S. Miller
Add some sanity checking. truesize should be at least sizeof(struct sk_buff) plus the current packet length. If not, then truesize is seriously mangled and deserves a kernel log message. Currently we'll do the check for release of stream socket buffers. But we can add checks to more spots over time. Incorporating ideas from Herbert Xu. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-19Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds
* git://git.linux-nfs.org/pub/linux/nfs-2.6: SUNRPC: Dead code in net/sunrpc/auth_gss/auth_gss.c NFS: remove needless check in nfs_opendir() NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUS NFS: make 2 functions static NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unset NFS: fix PROC_FS=n compile error VFS: Fix another open intent Oops RPCSEC_GSS: fix leak in krb5 code caused by superfluous kmalloc
2006-04-19NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unsetTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-04-19NFS: fix PROC_FS=n compile errorAdrian Bunk
fs/built-in.o: In function `nfs_show_stats':inode.c:(.text+0x15481a): undefined reference to `rpc_print_iostats' net/built-in.o: In function `rpc_destroy_client': undefined reference to `rpc_free_iostats' net/built-in.o: In function `rpc_clone_client': undefined reference to `rpc_alloc_iostats' net/built-in.o: In function `rpc_new_client': undefined reference to `rpc_alloc_iostats' net/built-in.o: In function `xprt_release': undefined reference to `rpc_count_iostats' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-04-19[PATCH] remove the obsolete IDEPCI_FLAG_FORCE_PDCAdrian Bunk
Noted by Sergei Shtylylov <sshtylyov@ru.mvista.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] ide: ATI SB600 IDE supportAnatoli Antonovitch
Add support for the IDE device on ATI SB600 Signed-off-by: Felix Kuehling <fkuehlin@ati.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[PATCH] task: Make task list manipulations RCU safeEric W. Biederman
While we can currently walk through thread groups, process groups, and sessions with just the rcu_read_lock, this opens the door to walking the entire task list. We already have all of the other RCU guarantees so there is no cost in doing this, this should be enough so that proc can stop taking the tasklist lock during readdir. prev_task was killed because it has no users, and using it will miss new tasks when doing an rcu traversal. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19[MIPS] MV6434x: The name of the CPP symbol is __mips__, not __MIPS__.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-14[PATCH] kill unushed __put_task_struct_cbEric W. Biederman
Somehow in the midst of dotting i's and crossing t's during the merge up to rc1 we wound up keeping __put_task_struct_cb when it should have been killed as it no longer has any users. Sorry I probably should have caught this while it was still in the -mm tree. Having the old code there gets confusing when reading through the code and trying to understand what is happening. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-14Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (679 commits) commit 7676f83aeb774e7a3abe6af06ec92b29488b5b79 Author: James Bottomley <James.Bottomley@steeleye.com> Date: Fri Apr 14 09:47:59 2006 -0500 [SCSI] scsi_transport_sas: don't scan a non-existent end device Any end device that can't support any of the scanning protocols shouldn't be scanned, so set its id to -1 to prevent scsi_scan_target() being called for it. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> commit 3c0c25b97c7d020ef07f6366cf1d668a8e980c7c Author: Moore, Eric <Eric.Moore@lsil.com> Date: Thu Apr 13 16:08:17 2006 -0600 [SCSI] mptfusion - fix panic in mptsas_slave_configure Driver panic when RAID logical volume was present when driver loaded, or when a RAID logical volume was created on the fly. ...
2006-04-14Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (169 commits) commit 78a596b4490e17b9990d87b9d468ef5bb70daa10 Author: Adrian Bunk <bunk@stusta.de> Date: Fri Mar 31 01:38:12 2006 -0800 [PATCH] remove kernel/power/pm.c:pm_unregister() Since the last user is removed in -mm, we can now remove this long deprecated function. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> commit 21440d313358043b0ce5e43b00ff3c9b35a8616c Author: David Brownell <david-b@pacbell.net> Date: Sat Apr 1 10:21:52 2006 -0800 [PATCH] dma doc updates ...
2006-04-14Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (158 commits) commit 4f705ae3e94ffaafe8d35f71ff4d5c499bb06814 Author: Bjorn Helgaas <bjorn.helgaas@hp.com> Date: Mon Apr 3 17:09:22 2006 -0700 [PATCH] DMI: move dmi_scan.c from arch/i386 to drivers/firmware/ dmi_scan.c is arch-independent and is used by i386, x86_64, and ia64. Currently all three arches compile it from arch/i386, which means that ia64 and x86_64 depend on things in arch/i386 that they wouldn't otherwise care about. This is simply "mv arch/i386/kernel/dmi_scan.c drivers/firmware/" (removing trailing whitespace) and the associated Makefile changes. All three architectures already set CONFIG_DMI in their top-level Kconfig files. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Andi Kleen <ak@muc.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andrey Panin <pazke@orbita1.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> ...
2006-04-14[PATCH] remove kernel/power/pm.c:pm_unregister()Adrian Bunk
Since the last user is removed in -mm, we can now remove this long deprecated function. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] PCI: fix sparse warning about pci_bus_flagsRoland Dreier
Sparse warns about casting to a __bitwise type. However, it's correct to do when defining the enum for pci_bus_flags_t, so add a __force to quiet the warnings. This will fix getting include/linux/pci.h:100:26: warning: cast to restricted type from sparse all over the build. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] pci_ids.h: correct naming of 1022:7450 (AMD 8131 Bridge)John W. Linville
The naming of the constant defined for PCI ID 1022:7450 does not seem to match the information at http://pciids.sourceforge.net/: http://pci-ids.ucw.cz/iii/?i=1022 There 1022:7450 is listed as "AMD-8131 PCI-X Bridge" while 1022:7451 is listed as "AMD-8131 PCI-X IOAPIC". Yet, the current definition for 0x7450 is PCI_DEVICE_ID_AMD_8131_APIC. It seems to me like that name should map to 0x7451, while a name like PCI_DEVICE_ID_AMD_8131_BRIDGE should map to 0x7450. Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] PCI: MSI(X) save/restore for suspend/resumeShaohua Li
Add MSI(X) configure sapce save/restore in generic PCI helper. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] pm: print name of failed suspend functionAndrew Morton
Print more diagnostic info to help identify the source of power management suspend failures. Example: usb_hcd_pci_suspend(): pci_set_power_state+0x0/0x1af() returns -22 pci_device_suspend(): usb_hcd_pci_suspend+0x0/0x11b() returns -22 suspend_device(): pci_device_suspend+0x0/0x34() returns -22 Work-in-progress. It needs lots more suspend_report_result() calls sprinkled everywhere. Cc: Patrick Mochel <mochel@digitalimplant.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Nigel Cunningham <nigel@suspend2.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] BLOCK: delay all uevents until partition table is scannedKay Sievers
[BLOCK] delay all uevents until partition table is scanned Here we delay the annoucement of all block device events until the disk's partition table is scanned and all partition devices are already created and sysfs is populated. We have a bunch of old bugs for removable storage handling where we probe successfully for a filesystem on the raw disk, but at the same time the kernel recognizes a partition table and creates partition devices. Currently there is no sane way to tell if partitions will show up or not at the time the disk device is announced to userspace. With the delayed events we can simply skip any probe for a filesystem on the raw disk when we find already present partitions. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] sysfs: Allow sysfs attribute files to be pollableNeilBrown
It works like this: Open the file Read all the contents. Call poll requesting POLLERR or POLLPRI (so select/exceptfds works) When poll returns, close the file and go to top of loop. or lseek to start of file and go back to the 'read'. Events are signaled by an object manager calling sysfs_notify(kobj, dir, attr); If the dir is non-NULL, it is used to find a subdirectory which contains the attribute (presumably created by sysfs_create_group). This has a cost of one int per attribute, one wait_queuehead per kobject, one int per open file. The name "sysfs_notify" may be confused with the inotify functionality. Maybe it would be nice to support inotify for sysfs attributes as well? This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action to be pollable Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14[PATCH] USB: linux/usb/net2280.h common definitionsPete Zaitcev
Move common definitions for NET2280 to <linux/usb/net2280.h>, so that I can use them in prism54usb (it is not merged yet, but I plan to do it soon). Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-14Merge branch 'tee' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'tee' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add support for sys_tee() [PATCH] splice: pass offset around for ->splice_read() and ->splice_write()
2006-04-13[SCSI] unify SCSI_IOCTL_SEND_COMMAND implementationsChristoph Hellwig
We currently have two implementations of this obsolete ioctl, one in the block layer and one in the scsi code. Both of them have drawbacks. This patch kills the scsi layer version after updating the block version with the missing bits: - argument checking - use scatterlist I/O - set number of retries based on the submitted command This is the last user of non-S/G I/O except for the gdth driver, so getting this in ASAP and through the scsi tree would be nie to kill the non-S/G I/O path. Jens, what do you think about adding a check for non-S/G I/O in the midlayer? Thanks to Or Gerlitz for testing this patch. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-11[WAN]: Remove broken and unmaintained Sangoma drivers.Adrian Bunk
The in-kernel Sangoma drivers are both not compiling and marked as BROKEN since at least kernel 2.6.0. Sangoma offers out-of-tree drivers, and David Mandelstam told me Sangoma does no longer maintain the in-kernel drivers and prefers to provide them as a separate installation package. This patch therefore removes these drivers. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-11[PATCH] splice: add support for sys_tee()Jens Axboe
Basically an in-kernel implementation of tee, which uses splice and the pipe buffers as an intelligent way to pass data around by reference. Where the user space tee consumes the input and produces a stdout and file output, this syscall merely duplicates the data inside a pipe to another pipe. No data is copied, the output just grabs a reference to the input pipe data. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-11[PATCH] splice: pass offset around for ->splice_read() and ->splice_write()Jens Axboe
We need not use ->f_pos as the offset for the file input/output. If the user passed an offset pointer in through sys_splice(), just use that and leave ->f_pos alone. Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-11[PATCH] x86_64: inline function prefix with __always_inline in vsyscallmao, bibo
In vsyscall function do_vgettimeofday(), some functions are declared as inlined, which is a hint for gcc to compile the function inlined but it not forced. Sometimes compiler does not compile the function as inlined, so here inline is replaced by __always_inline prefix. It does not happen in gcc compiler actually, but it possibly happens. Signed-off-by: bibo mao <bibo.mao@intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] vfs: add splice_write and splice_read to documentation [PATCH] Remove sys_ prefix of new syscalls from __NR_sys_* [PATCH] splice: warning fix [PATCH] another round of fs/pipe.c cleanups [PATCH] splice: comment styles [PATCH] splice: add Ingo as addition copyright holder [PATCH] splice: unlikely() optimizations [PATCH] splice: speedups and optimizations [PATCH] pipe.c/fifo.c code cleanups [PATCH] get rid of the PIPE_*() macros [PATCH] splice: speedup __generic_file_splice_read [PATCH] splice: add direct fd <-> fd splicing support [PATCH] splice: add optional input and output offsets [PATCH] introduce a "kernel-internal pipe object" abstraction [PATCH] splice: be smarter about calling do_page_cache_readahead() [PATCH] splice: optimize the splice buffer mapping [PATCH] splice: cleanup __generic_file_splice_read() [PATCH] splice: only call wake_up_interruptible() when we really have to [PATCH] splice: potential !page dereference [PATCH] splice: mark the io page as accessed
2006-04-11[PATCH] vesafb: Fix incorrect logo colors in x86_64Antonino A. Daplas
Bugzilla Bug 6299: A pixel size of 8 bits produces wrong logo colors in x86_64. The driver has 2 methods for setting the color map, using the protected mode interface provided by the video BIOS and directly writing to the VGA registers. The former is not supported in x86_64 and the latter is enabled only in i386. Fix by enabling the latter method in x86_64 only if supported by the BIOS. If both methods are unsupported, change the visual of vesafb to STATIC_PSEUDOCOLOR. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] knfsd: svcrpc: WARN() instead of returning an error from svc_take_pageJ. Bruce Fields
Every caller of svc_take_page ignores its return value and assumes it succeeded. So just WARN() instead of returning an ignored error. This would have saved some time debugging a recent nfsd4 problem. If there are still failure cases here, then the result is probably that we overwrite an earlier part of the reply while xdr-encoding. While the corrupted reply is a nasty bug, it would be worse to panic here and create the possibility of a remote DOS; hence WARN() instead of BUG(). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Cc: Ingo Oeser <ioe-lkml@rameria.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] module support: record in vermagic ability to unload a modulePaolo 'Blaisorblade' Giarrusso
An UML user reported (against 2.6.13.3/UML) he got kernel Oopses when trying to rmmod (on a kernel with module unloading enabled) a module compiled with module unloading disabled. As crashing is a very correct thing to do in that case, a solution is altering the vermagic string to include this too. Possibly, however, the code should not crash in this case, even if the module didn't support unloading - it should simply abort the module removal. In this case, fixing that bug would be a better solution. I've not investigated though. (akpm: a bit marginal - root screwed up and shot himself in the foot). Cc: Hayim Shaul <hayim@post.tau.ac.il> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Last DMA_xBIT_MASK cleanupsTobias Klauser
These are the last conversions of pci_set_dma_mask(), pci_set_consistent_dma_mask() and pci_dma_supported() to use DMA_xBIT_MASK constants from linux/dma-mapping.h Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] kdump proc vmcore size oveflow fixVivek Goyal
A couple of /proc/vmcore data structures overflow with 32bit systems having memory more than 4G. This patch fixes those. Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Reinstate const in next_thread()Keith Owens
Before commit 47e65328a7b1cdfc4e3102e50d60faf94ebba7d3, next_thread() took a const task_t. Reinstate the const qualifier, getting the next thread never changes the current thread. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] make tty_insert_flip_string_flags() a non gpl exportAndrew Morton
We changed the wrong symbol. It's tty_insert_flip_string_flags() which is called from the previously-non-GPL'ed now-inlined tty_insert_flip_char(). Fix that up, and uninline tty_schedule_flip() while we're there. Cc: Tobias Powalowski <t.powa@gmx.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] leds: re-layout include/linux/leds.hBen Dooks
Lay out the structure definitions in include/linux/leds.h to be aligned as much as possible. Also minor updates to the comments to make them more concise. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] the scheduled unexport of panic_timeoutAdrian Bunk
Implement the scheduled unexport of panic_timeout. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] sync_file_range(): use unsigned for flagsAndrew Morton
Ulrich suggested that the `flags' arg to sync_file_range() become unsigned. Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Clean up arch-overrides in linux/string.hKyle McMartin
Some string functions were safely overrideable in lib/string.c, but their corresponding declarations in linux/string.h were not. Correct this, and make strcspn overrideable. Odds of someone wanting to do optimized assembly of these are small, but for the sake of cleanliness, might as well bring them into line with the rest of the file. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Configurable NODES_SHIFTYasunori Goto
Current implementations define NODES_SHIFT in include/asm-xxx/numnodes.h for each arch. Its definition is sometimes configurable. Indeed, ia64 defines 5 NODES_SHIFT values in the current git tree. But it looks a bit messy. SGI-SN2(ia64) system requires 1024 nodes, and the number of nodes already has been changeable by config. Suitable node's number may be changed in the future even if it is other architecture. So, I wrote configurable node's number. This patch set defines just default value for each arch which needs multi nodes except ia64. But, it is easy to change to configurable if necessary. On ia64 the number of nodes can be already configured in generic ia64 and SN2 config. But, NODES_SHIFT is defined for DIG64 and HP'S machine too. So, I changed it so that all platforms can be configured via CONFIG_NODES_SHIFT. It would be simpler. See also: http://marc.theaimsgroup.com/?l=linux-kernel&m=114358010523896&w=2 Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jack Steiner <steiner@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] Add GFP_NOWAITJeff Dike
Introduce GFP_NOWAIT, as an alias for GFP_ATOMIC & ~__GFP_HIGH. This also changes XFS, which is the only in-tree user of this idiom that I could find. The XFS piece is compile-tested only. Signed-off-by: Jeff Dike <jdike@addtoit.com> Acked-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] page flags: add commentry regarding field reservationAndy Whitcroft
Add some documentation regarding the utilisation of the flags field in struct page. This field is overloaded for per page bits and to hold node, zone and SPARSEMEM information. Make it clear which areas are used for what and how many bits are in each area. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] overcommit: add calculate_totalreserve_pages()Hideo AOKI
These patches are an enhancement of OVERCOMMIT_GUESS algorithm in __vm_enough_memory(). - why the kernel needed patching When the kernel can't allocate anonymous pages in practice, currnet OVERCOMMIT_GUESS could return success. This implementation might be the cause of oom kill in memory pressure situation. If the Linux runs with page reservation features like /proc/sys/vm/lowmem_reserve_ratio and without swap region, I think the oom kill occurs easily. - the overall design approach in the patch When the OVERCOMMET_GUESS algorithm calculates number of free pages, the reserved free pages are regarded as non-free pages. This change helps to avoid the pitfall that the number of free pages become less than the number which the kernel tries to keep free. - testing results I tested the patches using my test kernel module. If the patches aren't applied to the kernel, __vm_enough_memory() returns success in the situation but autual page allocation is failed. On the other hand, if the patches are applied to the kernel, memory allocation failure is avoided since __vm_enough_memory() returns failure in the situation. I checked that on i386 SMP 16GB memory machine. I haven't tested on nommu environment currently. This patch adds totalreserve_pages for __vm_enough_memory(). Calculate_totalreserve_pages() checks maximum lowmem_reserve pages and pages_high in each zone. Finally, the function stores the sum of each zone to totalreserve_pages. The totalreserve_pages is calculated when the VM is initilized. And the variable is updated when /proc/sys/vm/lowmem_reserve_raito or /proc/sys/vm/min_free_kbytes are changed. Signed-off-by: Hideo Aoki <haoki@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] md: make sure 64bit fields in version-1 metadata are 64-bit alignedNeilBrown
reshape_position is a 64bit field that was not 64bit aligned. So swap with new_level. NOTE: this is a user-visible change. However: - The bad code has not appeared in a released kernel - This code is still marked 'experimental' - This only affects version-1 superblock, which are not in wide use - These field are only used (rather than simply reported) by user-space tools in extemely rare circumstances : after a reshape crashes in the first second of the reshape process. So I believe that, at this stage, the change is safe. Especially if people heed the 'help' message on use mdadm-2.4.1. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11[PATCH] splice: warning fixAndrew Morton
From: Andrew Morton <akpm@osdl.org> net/socket.c:148: warning: initialization from incompatible pointer type extern declarations in .c files! Bad boy. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jens Axboe <axboe@suse.de>
2006-04-11[PATCH] get rid of the PIPE_*() macrosIngo Molnar
get rid of the PIPE_*() macros. Scripted transformation. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jens Axboe <axboe@suse.de>