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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2008-08-01
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits) mm/hugetlb.c must #include <asm/io.h> video: Fix up hp6xx driver build regressions. sh: defconfig updates. sh: Kill off stray mach-rsk7203 reference. serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression. sh: Move out individual boards without mach groups. sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h. sh: Allow SH-3 and SH-5 to use common headers. sh: Provide common CPU headers, prune the SH-2 and SH-2A directories. sh/maple: clean maple bus code sh: More header path fixups for mach dir refactoring. sh: Move out the solution engine headers to arch/sh/include/mach-se/ sh: I2C fix for AP325RXA and Migo-R sh: Shuffle the board directories in to mach groups. sh: dma-sh: Fix up dreamcast dma.h mach path. sh: Switch KBUILD_DEFCONFIG to shx3_defconfig. sh: Add ARCH_DEFCONFIG entries for sh and sh64. sh: Fix compile error of Solution Engine sh: Proper __put_user_asm() size mismatch fix. sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation. ...
| * mm/hugetlb.c must #include <asm/io.h>Adrian Bunk2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following build error on sh caused by commit aa888a74977a8f2120ae9332376e179c39a6b07d (hugetlb: support larger than MAX_ORDER): <-- snip --> ... CC mm/hugetlb.o /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/hugetlb.c: In function 'alloc_bootmem_huge_page': /home/bunk/linux/kernel-2.6/git/linux-2.6/mm/hugetlb.c:958: error: implicit declaration of function 'virt_to_phys' make[2]: *** [mm/hugetlb.o] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * video: Fix up hp6xx driver build regressions.Paul Mundt2008-07-29
| | | | | | | | | | | | | | This is some more fallout from the header reorganization, fix up the paths accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: defconfig updates.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Kill off stray mach-rsk7203 reference.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.Paul Mundt2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As noted by Manuel: Commit c63847a3621d2bac054f5709783860ecabd0ee7e ("sh: Add SCIF2 support for SH7763.") broke build with CONFIG_EARLY_PRINTK enabled for me (SH7760): CC arch/sh/kernel/early_printk.o /mnt/work/sh7760/kernel/linux-2.6.git/arch/sh/kernel/early_printk.c: In function 'scif_sercon_putc': /mnt/work/sh7760/kernel/linux-2.6.git/arch/sh/kernel/early_printk.c:84: error: implicit declaration of function 'sci_SCFDR_in' Move the SH7763 definitions out on their own, so they don't create additional confusion within the SH7760/SH7780/SH7785 block. Restore the deleted SCFDR definition for these parts. Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Move out individual boards without mach groups.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.Paul Mundt2008-07-29
| | | | | | | | | | | | | | | | | | Presently this is protected by a CONFIG_VSYSCALL ifdef so we don't inadvertently trigger the creation of the gate VMA on CPUs where we don't enable the vDSO, which is obviously not visible to userspace. Fix this up by adding in an ifndef __KERNEL__ check at the same time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Allow SH-3 and SH-5 to use common headers.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh/maple: clean maple bus codeAdrian McMenamin2008-07-29
| | | | | | | | | | | | | | | | | | This patch cleans up the handling of the maple bus queue to remove the risk of races when adding packets. It also removes references to the redundant connect and disconnect functions. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: More header path fixups for mach dir refactoring.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Move out the solution engine headers to arch/sh/include/mach-se/Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: I2C fix for AP325RXA and Migo-RMagnus Damm2008-07-29
| | | | | | | | | | | | | | | | Fix recently introduced I2C build breakage on AP325RXA and Migo-R. Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Shuffle the board directories in to mach groups.Paul Mundt2008-07-29
| | | | | | | | | | | | | | | | | | This flattens out the board directories in to individual mach groups, we will use this for getting rid of unneeded directories, simplifying the build system, and becoming more coherent with the refactored arch/sh/include topology. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: dma-sh: Fix up dreamcast dma.h mach path.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add ARCH_DEFCONFIG entries for sh and sh64.Paul Mundt2008-07-29
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix compile error of Solution EngineNobuhiro Iwamatsu2008-07-29
| | | | | | | | | | | | | | | | | | | | When I compiled Solution Engine, this become compile error because plaform device of sh_eth device becomes enable. When sh7710/sh7712 which could use sh_eth was chosen, revised it so that platform device of sh_eth device became enable. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Proper __put_user_asm() size mismatch fix.OGAWA Hirofumi2008-07-28
| | | | | | | | | | | | | | | | This fixes up the workaround in 2b4b2bb42137c779ef0084de5df66ff21b4cd86e and cleans up __put_user_asm() to get the sizing right from the onset. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.Paul Mundt2008-07-28
| | | | | | | | | | | | | | If none is defined, provide a sane default, as we do for the other options. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add an arch/sh/kernel/.gitignorePaul Mundt2008-07-28
| | | | | | | | | | | | Ignore vmlinux.lds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: dreamcast: fix build failure from header reorg.Paul Mundt2008-07-28
| | | | | | | | | | | | | | Oops, machvec.h is in asm/, it was previously removed due to overzealous trimming. Fix up the path again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: migrate to arch/sh/include/Paul Mundt2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * video: Kill off leaked CONFIG_FB_SH7343VOU reference.Paul Mundt2008-07-28
| | | | | | | | | | | | | | | | This came in with the SH-Mobile LCDC changes in commit cfb4f5d1750e05f43902197713c50c29e7dfbc99, kill it off. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * MAINTAINERS: Switch SUPERH to Supported.Paul Mundt2008-07-28
| | | | | | | | | | | | | | | | Apparently the SH entry ought to be Supported instead of Maintained, given the suble difference in terminology. Though it's been this way for years now, thanks to Renesas. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fix up unaligned current_text_addr().Paul Mundt2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As noted by Adrian: Commit 3ab83521378268044a448113c6aa9a9e245f4d2f (kexec jump) causes the following build error on sh: <-- snip --> ... CC kernel/kexec.o {standard input}: Assembler messages: {standard input}:1518: Error: offset to unaligned destination make[2]: *** [kernel/kexec.o] Error 1 <-- snip --> If I understand the assembler correctly it fails at include/asm-sh/kexec.h:59 The issue here is that the mova reference lacks an explicit alignment, and previous code paths would end up with this on a 16-bit boundary, so we make the alignment explicit. Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: rsk7203: update defconfig.Paul Mundt2008-07-28
| | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: rsk7203: Add smc911x platform data.Paul Mundt2008-07-28
| | | | | | | | | | | | This hooks up platform data for the SMC9118 on the RSK+7203. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-08-01
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: generic, x86: fix add iommu_num_pages helper function x86: remove stray <6> in BogoMIPS printk x86: move dma32_reserve_bootmem() after reserve_crashkernel()
| * | generic, x86: fix add iommu_num_pages helper functionFUJITA Tomonori2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This IOMMU helper function doesn't work for some architectures: http://marc.info/?l=linux-kernel&m=121699304403202&w=2 It also breaks POWER and SPARC builds: http://marc.info/?l=linux-kernel&m=121730388001890&w=2 Currently, only x86 IOMMUs use this so let's move it to x86 for now. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Merge commit 'v2.6.27-rc1' into x86/urgentIngo Molnar2008-07-29
| |\ \
| * \ \ Merge branch 'x86/crashdump' into x86/urgentIngo Molnar2008-07-28
| |\ \ \
| | * | | x86: move dma32_reserve_bootmem() after reserve_crashkernel()Bernhard Walle2008-07-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a x86-64 machine (nothing special I could encounter) I had the problem that crashkernel reservation with the usual "64M@16M" failed. While debugging that, I encountered that dma32_reserve_bootmem() reserves a memory region which is in that area. Because dma32_reserve_bootmem() does not rely on a specific offset but crashkernel does, it makes sense to move the dma32_reserve_bootmem() reservation down a bit. I tested that patch and it works without problems. I don't see any negative effects of that move, but maybe I oversaw something ... While we strictly don't need that patch in 2.6.27 because we have the automatic, dynamic offset detection, it makes sense to also include it here because: - it's easier to get it in -stable then, - many people are still used to the 'crashkernel=...@16M' syntax, - not everybody may be using a reloatable kernel. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: kexec@lists.infradead.org Cc: vgoyal@redhat.com Cc: akpm@linux-foundation.org Cc: Bernhard Walle <bwalle@suse.de> Cc: yhlu.kernel@gmail.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: remove stray <6> in BogoMIPS printkJoe Perches2008-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rabin Vincent noticed that there's a stray <6> in BogoMIPS printk: > Remove the extra KERN_INFO which causes this: > Calibrating delay loop... <6>179.40 BogoMIPS (lpj=897024) > - printk(KERN_INFO "%lu.%02lu BogoMIPS (lpj=%lu)\n", > - loops_per_jiffy/(500000/HZ), > - (loops_per_jiffy/(5000/HZ)) % 100, loops_per_jiffy); > + printk("%lu.%02lu BogoMIPS (lpj=%lu)\n", > + loops_per_jiffy/(500000/HZ), > + (loops_per_jiffy/(5000/HZ)) % 100, loops_per_jiffy); > } How about just using KERN_CONT and leaving the whitespace for a patch that does the entire file? Reported-by: Rabin Vincent <rabin@rab.in>
* | | | | Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2008-08-01
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] qeth: avoid use of include/asm-s390 [S390] dont use kthread for smp_rescan_cpus(). [S390] virtio console: fix section mismatch warning. [S390] cio: Include linux/string.h in schid.h. [S390] qdio: fix section mismatch bug. [S390] stp: fix section mismatch warning. [S390] Remove diag 0x260 call from memory detection. [S390] qdio: make sure qdr is aligned to page size [S390] Add support for memory hot-remove. [S390] Wire up new syscalls. [S390] cio: Memory allocation for idset changed. [S390] qeth: preallocated qeth header for hiper socket [S390] Optimize storage key operations for anon pages [S390] nohz/sclp: disable timer on synchronous waits. [S390] ipl: Reboot from alternate device does not work when booting from file [S390] dasd: Add support for enhanced VM UID [S390] Remove last P390 trace.
| * | | | | [S390] qeth: avoid use of include/asm-s390Martin Schwidefsky2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The planned move of include/asm-s390 to arch/s390/include/asm requires that all includes for asm headers use include/asm and not include/asm-s390. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] dont use kthread for smp_rescan_cpus().Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since git commit 3da1c84c00c7e5fa8348336bd8c342f9128b0f14 "workqueues: make get_online_cpus() useable for work->func()" it is safe to call get_online_cpus() from workqueue context. So remove the kthread workaround again. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] virtio console: fix section mismatch warning.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix these two false positive warnings: WARNING: vmlinux.o(.text+0x2e1cc4): Section mismatch in reference from the function s390_virtio_console_init() to the function .init.text:early_put_chars() The function s390_virtio_console_init() references the function __init early_put_chars(). This is often because s390_virtio_console_init lacks a __init annotation or the annotation of early_put_chars is wrong. WARNING: vmlinux.o(.text+0x2e1cd0): Section mismatch in reference from the function s390_virtio_console_init() to the function .init.text:virtio_cons_early_init() The function s390_virtio_console_init() references the function __init virtio_cons_early_init(). This is often because s390_virtio_console_init lacks a __init annotation or the annotation of virtio_cons_early_init is wrong. Cc: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] cio: Include linux/string.h in schid.h.Cornelia Huck2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | schid.h needs string.h for memset and memcmp. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] qdio: fix section mismatch bug.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the two section mismatch warnings below. This fixes two real bugs since the code which has __exit annotations may already be gone when it is called. WARNING: vmlinux.o(.init.text+0x1cc4a): Section mismatch in reference from the function init_QDIO() to the function .exit.text:qdio_setup_exit() The function __init init_QDIO() references a function __exit qdio_setup_exit(). This is often seen when error handling in the init function uses functionality in the exit path. The fix is often to remove the __exit annotation of qdio_setup_exit() so it may be used outside an exit section. WARNING: vmlinux.o(.init.text+0x1cc7a): Section mismatch in reference from the function init_QDIO() to the function .exit.text:qdio_remove_perf_stats() The function __init init_QDIO() references a function __exit qdio_remove_perf_stats(). This is often seen when error handling in the init function uses functionality in the exit path. The fix is often to remove the __exit annotation of qdio_remove_perf_stats() so it may be used outside an exit section. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] stp: fix section mismatch warning.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix these two (false positive) warnings by adding an __init annoation: WARNING: vmlinux.o(.text+0x7e6a): Section mismatch in reference from the function stp_reset() to the function .init.text:__alloc_bootmem() The function stp_reset() references the function __init __alloc_bootmem(). This is often because stp_reset lacks a __init annotation or the annotation of __alloc_bootmem is wrong. WARNING: vmlinux.o(.text+0x7ece): Section mismatch in reference from the function stp_reset() to the function .init.text:free_bootmem() The function stp_reset() references the function __init free_bootmem(). This is often because stp_reset lacks a __init annotation or the annotation of free_bootmem is wrong. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] Remove diag 0x260 call from memory detection.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The result of the diag 0x260 call is not always what one would expect. So just remove it. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] qdio: make sure qdr is aligned to page sizeJan Glauber2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kzalloc does not guarantee the required alignment of qdr to page size, use get_zeroed_page instead. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
| * | | | | [S390] Add support for memory hot-remove.Gerald Schaefer2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables memory hot-remove on s390. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] Wire up new syscalls.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] cio: Memory allocation for idset changed.Michael Ernst2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Memory allocation for the quite huge idset changed from kzalloc to vmalloc. Signed-off-by: Michael Ernst <mernst@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] qeth: preallocated qeth header for hiper socketFrank Blaschka2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For hiper socket devices this patch will economize the reallocation of the tx skb data segment by allocating separate memory for the qdio transport information (qeth header). Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] Optimize storage key operations for anon pagesMartin Schwidefsky2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For anonymous pages without a swap cache backing the check in page_remove_rmap for the physical dirty bit in page_remove_rmap is unnecessary. The instructions that are used to check and reset the dirty bit are expensive. Removing the check noticably speeds up process exit. In addition the clearing of the dirty bit in __SetPageUptodate is pointless as well. With these two changes there is no storage key operation for an anonymous page anymore if it does not hit the swap space. The micro benchmark which repeatedly executes an empty shell script gets about 5% faster. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | | [S390] nohz/sclp: disable timer on synchronous waits.Heiko Carstens2008-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sclp_sync_wait wait synchronously for an sclp interrupt and disables timer interrupts. However on the irq enter paths there is an extra check if a timer interrupt would be due and calls the timer callback. This would schedule softirqs in the wrong context. So introduce local_tick_enable/disable which prevents this. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 14:51:57 -0500