Kernel

[PATCH 1/2] kfifo: implement missing __kfifo_skip_r()
kfifo_skip() is currently broken, due to the missing of the internal helper function. Add it. Signed-off-by: Andrea Righi <arighi(a)develer.com> --- include/linux/kfifo.h | 2 ++ kernel/kfifo.c | 9 +++++++++ 2 files changed, 11 insertions(+), 0 deletions(-) diff --git a/include/linux/kfifo.h b/i... 12 Aug 2010 12:34

[tip:x86/urgent] x86, asm: Use a lower case name for the end macro in atomic64_386_32.S
Commit-ID: 417484d47e115774745ef025bce712a102b6f86f Gitweb: http://git.kernel.org/tip/417484d47e115774745ef025bce712a102b6f86f Author: Luca Barbieri <luca(a)luca-barbieri.com> AuthorDate: Thu, 12 Aug 2010 07:00:35 -0700 Committer: H. Peter Anvin <hpa(a)zytor.com> CommitDate: Thu, 12 Aug 2010 07:04:16 -0700 ... 12 Aug 2010 12:34

dmaengine questions
Hi, I am currently looking into implementing the Freescale i.MX SDMA engine into the dmaengine API. The SDMA engine can handle sg transfers from/to devices. During implementation some questions came up. On the i.MX we already have a DMA engine which can do slave dma transfers, the IPU (drivers/dma/ipu/), which... 13 Aug 2010 03:50

x86-32: Fix crashes with CPU hotplug on AMD machines
On Thu, Aug 05, 2010 at 07:14:14AM -0700, H. Peter Anvin wrote: On 08/05/2010 12:45 AM, Roedel, Joerg wrote: Correct, again. It's unclear to me if we can get away with the very simple 64-bit approach -- in particular, not including all the 1:1 mappings in the kernel -- for all future users, though. Yeah... 12 Aug 2010 15:53

Last ioctl bkl pushdown in the LogFS tree, but no pull request?
Joern, The Logfs tree contains the last ioctl bkl pushdown that is not yet upstream. git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs.git ddbb5dd99c40a695d5d75645b5a18bef394acb16 "logfs: kill BKL" This patch seems to have missed the 2.6.35 merge window already. Do you plan to make a pull request ... 12 Aug 2010 10:22

alpha: convert perf_event to use local_t
On Thu, Aug 12, 2010 at 5:49 AM, Michael Cree <mcree(a)orcon.net.nz> wrote: Updates the Alpha perf_event code to match the changes recently made to the core perf_event code in commit e78505958cf123048fb48cb56b79cebb8edd15fb. Signed-off-by: Michael Cree <mcree(a)orcon.net.nz> --- �arch/alpha/kernel/perf... 12 Aug 2010 10:22

[PATCH 2/4] dio: add page locking for direct I/O
Naoya Horiguchi <n-horiguchi(a)ah.jp.nec.com> writes: Basically it is user's responsibility to take care of race condition related to direct I/O, but some events which are out of user's control (such as memory failure) can happen at any time. So we need to lock and set/clear PG_writeback flags in dierct I/O... 12 Aug 2010 10:22

[PATCH]: local_irq_save/restore when issuing IPI in early bootup
When sending out an IPI interrupts are masked off. In the cpu wakeup code, this is not the case. Make the code consistent. Alok Kataria noticed the following hang: 1. vcpu1 is doing wakeup_secondary_cpu_via_init() is booting all the other processors. It tries to bring each cpu up by sending an IPI which is ... 12 Aug 2010 10:22

SCSI: fix bio.bi_rw handling
Jiri Slaby <jslaby(a)suse.cz> writes: Return of the bi_rw tests is no longer bool after commit 74450be1. So testing against constants doesn't make sense anymore. Fix this bug in osd_req_read by removing "== 1" in test. This is not a problem now, where REQ_WRITE is 1, but this can change in the future ... 12 Aug 2010 12:34

BLOCK: fix bio.bi_rw handling
Jiri Slaby <jslaby(a)suse.cz> writes: Return of the bi_rw tests is no longer bool after commit 74450be1. But results of such tests are stored in bools. This doesn't fit in there for some compilers (gcc 4.5 here), so either use !! magic to get real bools or use ulong where the result is assigned somewhere. ... 12 Aug 2010 12:34