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2006-03-25IB/mthca: Fix modify QP error pathRoland Dreier1-10/+11
If the call to mthca_MODIFY_QP() failed, then mthca_modify_qp() would still do some things it shouldn't, such as store away attributes for special QPs. Fix this, and simplify the code, by simply jumping to the exit path if mthca_MODIFY_QP() fails. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IPoIB: Fix network interface "RUNNING" statusLeonid Arsh1-2/+3
With the current IPoIB driver, the status of network interfaces stays "RUNNING" even if the link goes down (for example because a cable is unplugged). Fix this by flushing the IPoIB interface when the link goes down. Signed-off-by: Leonid Arsh <leonida@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/mthca: Fix indentationRoland Dreier1-2/+2
Fix some whitespace damage (indenting with spaces) that snuck in. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/mthca: Fix uninitialized variable in mthca_alloc_qp()Jack Morgenstein1-4/+5
mthca_alloc_sqp() by mthca_set_qp_size() need to set qp->transport before calling mthca_set_qp_size(), since the value is used there. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/mthca: Check SRQ limit in modify SRQ operationJack Morgenstein1-0/+2
When setting the shared receive queue (SRQ) watermark in a modify SRQ operation, make sure that the supplied value is not larger than the full size of the SRQ. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/mthca: Check that SRQ WQE size does not exceed device's max valueJack Morgenstein1-0/+4
Guarantee the calculated work queue entry size does not exceed the max allowable WQE size when creating an SRQ. This is a problem with Arbel in Tavor-compatibility mode because the current WQE size computation method rounds up to next power of 2. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/mthca: Check that sgid_index and path_mtu are valid in modify_qpDotan Barak1-4/+23
Add a check that the modify QP parameters sgid_index and path_mtu are valid, since they might come from userspace. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IB/srp: Use a fake scatterlist for non-SG SCSI commandsRoland Dreier2-77/+75
Since the SCSI midlayer is moving towards entirely getting rid of commands with use_sg == 0, we should treat this case as an exception. Therefore, change the IB SRP initiator to create a fake scatterlist for these commands with sg_init_one(). This simplifies the flow of DMA mapping and unmapping, since SRP can just use dma_map_sg() and dma_unmap_sg() unconditionally, rather than having to choose between the dma_{map,unmap}_sg() and dma_{map,unmap}_single() variants. Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-25IPoIB: Pass correct pointer when flushing child interfacesLeonid Arsh1-1/+1
ipoib_ib_dev_flush() should get passed cpriv->dev, not &cpriv->dev. Signed-off-by: Leonid Arsh <leonida@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-03-24[PATCH] net: ne2k.c won't compile if pci_clone_list is constHorms1-1/+1
net: ne2k.c won't compile if pci_clone_list is const f71e130966ba429dbd24be08ddbcdf263df9a5ad which (amongst other things) made pci_clone_list in ne2k-pci.c const causes the following compile error. This patch reverses that portion of that changeset drivers/net/ne2k-pci.c:123: error: pci_clone_list causes a section type conflict ~/ gcc --version gcc (GCC) 4.0.3 (Debian 4.0.3-1) ~/ dpkg gcc-4.0 | grep Version Version: 4.0.3-1 Signed-Off-By: Horms <horms@verge.net.au ne2k-pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) cee0890cc97247b6a9decd94f5dc0719ac8f0b1b Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24[PATCH] AT91RM9200 Ethernet driverAndrew Victor5-0/+1358
This patch adds support for the Ethernet controller integrated in the Atmel AT91RM9200 SoC processor. Changes since the previous submission (01/02/2006) are: - Make use of the clk.h clock infrastructure. - The multicast hash function is not crc32. [Patch by Pedro Perez] Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24Merge branch 'upstream-linus' of ↵Linus Torvalds12-506/+551
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [PATCH] libata: Remove dependence on host_set->dev for SAS [PATCH] libata: ata_scsi_ioctl cleanup [PATCH] libata: ata_scsi_queuecmd cleanup [libata] export ata_dev_pair; trim trailing whitespace [PATCH] libata: add ata_dev_pair helper [PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE. [PATCH] libata: make ata_set_mode() responsible for failure handling [PATCH] libata: use ata_dev_disable() in ata_bus_probe() [PATCH] libata: implement ata_dev_disable() [PATCH] libata: check if port is disabled after internal command [PATCH] libata: make per-dev transfer mode limits per-dev [PATCH] libata: add per-dev pio/mwdma/udma_mask [PATCH] libata: implement ata_unpack_xfermask() [libata] Move some bmdma-specific code to libata-bmdma.c [libata sata_uli] kill scr_addr abuse [libata sata_nv] eliminate duplicate codepaths with iomap [libata sata_nv] cleanups: convert #defines to enums; remove in-file history [libata sata_sil24] cleanups: use pci_iomap(), kzalloc()
2006-03-24[PATCH] fix build error if CONFIG_SYSFS=nAndrew Morton1-2/+2
uevent_seqnum and uevent_helper are only defined if CONFIG_HOTPLUG=y, CONFIG_NET=n. (I stole this back from Greg's tree - it makes allnoconfig work). Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] strndup_user: convert keyctlDavi Arnaut1-105/+50
Copies user-space string with strndup_user() and moves the type string duplication code to a function (thus fixing a wrong check on the length of the type.) Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] strndup_user: convert moduleDavi Arnaut1-16/+3
Change hand-coded userspace string copying to strndup_user. Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] strndup_user()Davi Arnaut2-0/+39
This patch series creates a strndup_user() function to easy copying C strings from userspace. Also we avoid common pitfalls like userspace modifying the final \0 after the strlen_user(). Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] timer-irq-driven soft-watchdog, cleanupsIngo Molnar3-27/+33
Make the softlockup detector purely timer-interrupt driven, removing softirq-context (timer) dependencies. This means that if the softlockup watchdog triggers, it has truly observed a longer than 10 seconds scheduling delay of a SCHED_FIFO prio 99 task. (the patch also turns off the softlockup detector during the initial bootup phase and does small style fixes) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Fix module refcount leak in __set_personality()Sergey Vlasov1-0/+1
If the change of personality does not lead to change of exec domain, __set_personality() returned without releasing the module reference acquired by lookup_exec_domain(). Signed-off-by: Sergey Vlasov <vsu@altlinux.ru> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] ext3: Properly report backup block present in a groupGlauber de Oliveira Costa1-7/+33
In filesystems with the meta block group flag on, ext3_bg_num_gdb() fails to report the correct number of blocks used to store the group descriptor backups in a given group. It happens because meta_bg follows a different logic from the original ext3 backup placement in groups multiples of 3, 5 and 7. Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com> Cc: Andreas Dilger <adilger@clusterfs.com> Cc: "Stephen C. Tweedie" <sct@redhat.com> Cc: Alex Tomas <alex@clusterfs.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] RLIMIT_CPU: document wrong return valueAndrew Morton1-0/+7
Document the fact that setrlimit(RLIMIT_CPU) doesn't return error codes when it should. I don't think we can fix this without a 2.7.x.. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ulrich Weigand <uweigand@de.ibm.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] RLIMIT_CPU: fix handling of a zero limitAndrew Morton1-1/+12
At present the kernel doesn't honour an attempt to set RLIMIT_CPU to zero seconds. But the spec says it should, and that's what 2.4.x does. Fixing this for real would involve some complexity (such as adding a new it-has-been-set flag to the task_struct, and testing that everwhere, instead of overloading the value of it_prof_expires). Given that a 2.4 kernel won't actually send the signal until one second has expired anyway, let's just handle this case by treating the caller's zero-seconds as one second. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ulrich Weigand <uweigand@de.ibm.com> Cc: Cliff Wickman <cpw@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] sys_setrlimit() cleanupAndrew Morton1-11/+15
- Whitespace cleanups - Make that expression comprehensible. There's a potential logic change here: we do the "is it_prof_expires equal to zero" test after converting it to seconds, rather than doing the comparison between raw cputime_t's. But given that it's in units of seconds anyway, that shouldn't change anything. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ulrich Weigand <uweigand@de.ibm.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] deprecate the tasklist_lock exportChristoph Hellwig1-0/+11
Drivers have no business looking at the task list and thus using this lock. The only possibly modular users left are: arch/ia64/kernel/mca.c drivers/edac/edac_mc.c fs/binfmt_elf.c which I'll send out fixes for soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Yet more rio cleaning (2 of 2)Alan Cox18-912/+265
- Remove more unused headers - Remove various typedefs - Correct type of PaddrP (physical addresses should be ulong) - Kill use of bcopy - More printk cleanups - Kill true/false - Clean up direct access to pci BARs Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Yet more rio cleaning (1 of 2)Alan Cox15-524/+36
- Remove more unused headers - Remove various typedefs - Correct type of PaddrP (physical addresses should be ulong) - Kill use of bcopy - More printk cleanups - Kill true/false - Clean up direct access to pci BARs Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio driver rework continued #5Alan Cox3-10/+2
Final polish. There is no more save_flags/cli type locking left. We also no longer use the pcicopy function and file so they can go. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio driver rework continued #4Alan Cox1-272/+118
Third large chunk of code cleanup. The split between this and #3 and #4 is fairly arbitary and due to the message length limit on the list. These patches continue the process of ripping out macros and typedefs while cleaning up lots of 32bit assumptions. Several inlines for compatibility also get removed and that causes a lot of noise. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio driver rework continued #3Alan Cox7-535/+232
Second large chunk of code cleanup. The split between this and #3 and #4 is fairly arbitary and due to the message length limit on the list. These patches continue the process of ripping out macros and typedefs while cleaning up lots of 32bit assumptions. Several inlines for compatibility also get removed and that causes a lot of noise. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio driver rework continued #2Alan Cox4-154/+115
First large chunk of code cleanup. The split between this and #3 and #4 is fairly arbitary and due to the message length limit on the list. These patches continue the process of ripping out macros and typedefs while cleaning up lots of 32bit assumptions. Several inlines for compatibility also get removed and that causes a lot of noise. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio driver rework continued #1Alan Cox10-167/+118
More header cleanups, strip out typedefs and remove cruft. There are a lot of magic macros that can go and also a great deal of abuse of volatile that is not needed any more as this patch set cleans up the misuse of pointer access to ISA and PCI space. It now builds cleanly on 64bit, although there is more work left to do Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rioboot: post-LindentAlan Cox1-252/+177
After the indent we can now clean up unused code, and fix all myriad cases that don't use readb/writeb properly. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rioboot: lindentAlan Cox1-811/+704
This is the result of indent -kr -i8 -bri0 -l255 Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] rio: more header cleanupAlan Cox10-400/+243
Strip some of the typedef mess out Remove a small subset of unused defines and the like. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Fix "value computed not used" warningsTakashi Iwai3-10/+10
Fixes for annoying gcc-4.1 compile warnings "value computed not used". Simply cast to void. (akpm: Linus will go ballistic...) Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] deprecate the kernel_thread exportChristoph Hellwig1-0/+11
Announce that the kernel_thread export will be removed in half a year, after all it's users have been converted to the kthread_ API, which I plan to do over the next month. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] ide: Allow IDE interface to specify its not capable of 32-bit operationsKumar Gala3-2/+10
In some embedded systems the IDE hardware interface may only support 16-bit or smaller accesses. Allow the interface to specify if this is the case and don't allow the drive or user to override the setting. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> 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>
2006-03-24[PATCH] show MCP menu only on ARCH_SA1100Adrian Bunk1-0/+1
On architectures like i386, the "Multimedia Capabilities Port drivers" menu is visible, but it can't be visited since it contains nothing usable for !ARCH_SA1100. This patch therefore shows this menu only on ARCH_SA1100. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Conditionalize compat_sys_newfstatatKyle McMartin1-0/+2
If we don't want sys_newfstatat because __ARCH_WANT_STAT64 is defined, then we certainly don't want compat_sys_newfstatat either. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> 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>
2006-03-24[PATCH] console_setup() depends (wrongly?) on CONFIG_PRINTKJohn Z. Bohach1-38/+38
It appears that console_setup() code only gets compiled into the kernel if CONFIG_PRINTK is enabled. One detrimental side-effect of this is that serial8250_console_setup() never gets invoked when CONFIG_PRINTK is not set, resulting in baud rate not being read/parsed from command line (i.e. console=ttyS0,115200n8 is ignored, at least the baud rate part...) Attached patch moves console_setup() code from inside #ifdef CONFIG_PRINTK to outside (in printk.c), removing dependence on said config. option. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Updated Documentation/nfsroot.txtNico Schottelius1-3/+14
I today booted the first time my embedded device using Linux 2.6.15.2, which was booted by pxelinux, which then bootet itself from the nfsroot. This went pretty fine, but when I was reading through Documentation/nfsroot.txt I saw that there are some more modern versions available of loading the kernel and passing parameters. Signed-off-by: Nico Schottelius <nico-kernel@schottelius.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] mmc: Secure Digital Host Controller Interface driverPierre Ossman5-0/+1469
Driver for the Secure Digital Host Controller Interface specification. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] Secure Digital Host Controller id and regsPierre Ossman1-0/+1
Class code and register definitions for the Secure Digital Host Controller standard. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] msync(): use do_fsync()Andrew Morton1-15/+2
No need to duplicate all that code. Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] fsync: extract internal codeAndrew Morton2-20/+24
Pull the guts out of do_fsync() - we can use it elsewhere. Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] msync: fix return valueAndrew Morton1-7/+7
msync() does a strange thing. Essentially: vma = find_vma(); for ( ; ; ) { if (!vma) return -ENOMEM; ... vma = vma->vm_next; } so an msync() request which starts within or before a valid VMA and which ends within or beyond the final VMA will incorrectly return -ENOMEM. Fix. Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] msync(MS_SYNC): don't hold mmap_sem while syncingAndrew Morton1-23/+26
It seems bad to hold mmap_sem while performing synchronous disk I/O. Alter the msync(MS_SYNC) code so that the lock is released while we sync the file. Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] msync(): perform dirty page levellingAndrew Morton1-32/+61
It seems sensible to perform dirty page throttling in msync: as the application dirties pages we can kick off pdflush early, or even force the msync() caller to perform writeout, or even throttle the msync() caller. The main effect of this is to start disk writeback earlier if we've just discovered that a large amount of pagecache has been dirtied. (Otherwise it wouldn't happen for up to five seconds, next time pdflush wakes up). It also will cause the page-dirtying process to get panalised for dirtying those pages rather than whacking someone else with the problem. We should do this for munmap() and possibly even exit(), too. We drop the mmap_sem while performing the dirty page balancing. It doesn't seem right to hold mmap_sem for that long. Note that this patch only affects MS_ASYNC. MS_SYNC will be syncing all the dirty pages anyway. We note that msync(MS_SYNC) does a full-file-sync inside mmap_sem, and always has. We can fix that up... The patch also tightens up the mmap_sem coverage in sys_msync(): no point in taking it while we perform the incoming arg checking. Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] set_page_dirty() return value fixesAndrew Morton5-9/+11
We need set_page_dirty() to return true if it actually transitioned the page from a clean to dirty state. This wasn't right in a couple of places. Do a kernel-wide audit, fix things up. This leaves open the possibility of returning a negative errno from set_page_dirty() sometime in the future. But we don't do that at present. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] balance_dirty_pages_ratelimited: take nr_pages argAndrew Morton2-10/+24
Modify balance_dirty_pages_ratelimited() so that it can take a number-of-pages-which-I-just-dirtied argument. For msync(). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24[PATCH] HOTPLUG_CPU: avoid hitting too many cachelines in recalc_bh_state()Eric Dumazet1-1/+4
Instead of using for_each_cpu(i), we can use for_each_online_cpu(i). When a CPU goes offline (ie removed from online map), it might have a non null bh_accounting.nr, so this patch adds a transfer of this counter to an online CPU counter. We already have a hotcpu_notifier, (function buffer_cpu_notify()), where we can do this bh_accounting. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>