1. 30 3月, 2009 1 次提交
  2. 11 1月, 2009 1 次提交
    • Y
      sparseirq: use kstat_irqs_cpu instead · dee4102a
      Yinghai Lu 提交于
      Impact: build fix
      
      Ingo Molnar wrote:
      
      > tip/arch/blackfin/kernel/irqchip.c: In function 'show_interrupts':
      > tip/arch/blackfin/kernel/irqchip.c:85: error: 'struct kernel_stat' has no member named 'irqs'
      > make[2]: *** [arch/blackfin/kernel/irqchip.o] Error 1
      > make[2]: *** Waiting for unfinished jobs....
      >
      
      So could move kstat_irqs array to irq_desc struct.
      
      (s390, m68k, sparc) are not touched yet, because they don't support genirq
      Signed-off-by: NYinghai Lu <yinghai@kernel.org>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      dee4102a
  3. 08 1月, 2009 1 次提交
    • D
      NOMMU: Make VMAs per MM as for MMU-mode linux · 8feae131
      David Howells 提交于
      Make VMAs per mm_struct as for MMU-mode linux.  This solves two problems:
      
       (1) In SYSV SHM where nattch for a segment does not reflect the number of
           shmat's (and forks) done.
      
       (2) In mmap() where the VMA's vm_mm is set to point to the parent mm by an
           exec'ing process when VM_EXECUTABLE is specified, regardless of the fact
           that a VMA might be shared and already have its vm_mm assigned to another
           process or a dead process.
      
      A new struct (vm_region) is introduced to track a mapped region and to remember
      the circumstances under which it may be shared and the vm_list_struct structure
      is discarded as it's no longer required.
      
      This patch makes the following additional changes:
      
       (1) Regions are now allocated with alloc_pages() rather than kmalloc() and
           with no recourse to __GFP_COMP, so the pages are not composite.  Instead,
           each page has a reference on it held by the region.  Anything else that is
           interested in such a page will have to get a reference on it to retain it.
           When the pages are released due to unmapping, each page is passed to
           put_page() and will be freed when the page usage count reaches zero.
      
       (2) Excess pages are trimmed after an allocation as the allocation must be
           made as a power-of-2 quantity of pages.
      
       (3) VMAs are added to the parent MM's R/B tree and mmap lists.  As an MM may
           end up with overlapping VMAs within the tree, the VMA struct address is
           appended to the sort key.
      
       (4) Non-anonymous VMAs are now added to the backing inode's prio list.
      
       (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of
           the backing region.  The VMA and region structs will be split if
           necessary.
      
       (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory
           segment instead of all the attachments at that addresss.  Multiple
           shmat()'s return the same address under NOMMU-mode instead of different
           virtual addresses as under MMU-mode.
      
       (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode.
      
       (8) /proc/maps is now the global list of mapped regions, and may list bits
           that aren't actually mapped anywhere.
      
       (9) /proc/meminfo gains a line (tagged "MmapCopy") that indicates the amount
           of RAM currently allocated by mmap to hold mappable regions that can't be
           mapped directly.  These are copies of the backing device or file if not
           anonymous.
      
      These changes make NOMMU mode more similar to MMU mode.  The downside is that
      NOMMU mode requires some extra memory to track things over NOMMU without this
      patch (VMAs are no longer shared, and there are now region structs).
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Tested-by: NMike Frysinger <vapier.adi@gmail.com>
      Acked-by: NPaul Mundt <lethal@linux-sh.org>
      8feae131
  4. 01 1月, 2009 1 次提交
  5. 02 12月, 2008 1 次提交
  6. 17 10月, 2008 1 次提交
  7. 02 8月, 2008 1 次提交
  8. 27 7月, 2008 1 次提交
  9. 25 7月, 2008 1 次提交
  10. 07 6月, 2008 1 次提交
  11. 17 5月, 2008 1 次提交
  12. 04 5月, 2008 1 次提交
    • U
      unified (weak) sys_pipe implementation · d35c7b0e
      Ulrich Drepper 提交于
      This replaces the duplicated arch-specific versions of "sys_pipe()" with
      one unified implementation.  This removes almost 250 lines of duplicated
      code.
      
      It's marked __weak, so that *if* an architecture wants to override the
      default implementation it can do so by simply having its own replacement
      version, since many architectures use alternate calling conventions for
      the 'pipe()' system call for legacy reasons (ie traditional UNIX
      implementations often return the two file descriptors in registers)
      
      I still haven't changed the cris version even though Linus says the BKL
      isn't needed.  The arch maintainer can easily do it if there are really
      no obstacles.
      Signed-off-by: NUlrich Drepper <drepper@redhat.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      d35c7b0e
  13. 29 4月, 2008 4 次提交
  14. 17 4月, 2008 1 次提交
  15. 15 4月, 2008 1 次提交
  16. 14 4月, 2008 1 次提交
  17. 11 4月, 2008 2 次提交
  18. 21 2月, 2008 2 次提交
  19. 14 2月, 2008 2 次提交
  20. 09 2月, 2008 1 次提交
  21. 08 2月, 2008 1 次提交
    • B
      Introduce flags for reserve_bootmem() · 72a7fe39
      Bernhard Walle 提交于
      This patchset adds a flags variable to reserve_bootmem() and uses the
      BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
      between crashkernel area and already used memory.
      
      This patch:
      
      Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
      If that flag is set, the function returns with -EBUSY if the memory already
      has been reserved in the past.  This is to avoid conflicts.
      
      Because that code runs before SMP initialisation, there's no race condition
      inside reserve_bootmem_core().
      
      [akpm@linux-foundation.org: coding-style fixes]
      [akpm@linux-foundation.org: fix powerpc build]
      Signed-off-by: NBernhard Walle <bwalle@suse.de>
      Cc: <linux-arch@vger.kernel.org>
      Cc: "Eric W. Biederman" <ebiederm@xmission.com>
      Cc: Vivek Goyal <vgoyal@in.ibm.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      72a7fe39
  22. 07 2月, 2008 1 次提交
    • A
      calibrate_delay() must be __cpuinit · 6c81c32f
      Adrian Bunk 提交于
      calibrate_delay() must be __cpuinit, not __{dev,}init.
      
      I've verified that this is correct for all users.
      
      While doing the latter, I also did the following cleanups:
      - remove pointless additional prototypes in C files
      - ensure all users #include <linux/delay.h>
      
      This fixes the following section mismatches with CONFIG_HOTPLUG=n,
      CONFIG_HOTPLUG_CPU=y:
      
      WARNING: vmlinux.o(.text+0x1128d): Section mismatch: reference to .init.text.1:calibrate_delay (between 'check_cx686_slop' and 'set_cx86_reorder')
      WARNING: vmlinux.o(.text+0x25102): Section mismatch: reference to .init.text.1:calibrate_delay (between 'smp_callin' and 'cpu_coregroup_map')
      Signed-off-by: NAdrian Bunk <bunk@kernel.org>
      Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      Cc: Richard Henderson <rth@twiddle.net>
      Cc: "Luck, Tony" <tony.luck@intel.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Christian Zankel <chris@zankel.net>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      6c81c32f
  23. 06 2月, 2008 2 次提交
  24. 03 2月, 2008 1 次提交
  25. 29 1月, 2008 2 次提交
  26. 30 11月, 2007 1 次提交
  27. 20 10月, 2007 2 次提交
  28. 17 10月, 2007 2 次提交
  29. 12 8月, 2007 1 次提交
  30. 30 7月, 2007 1 次提交
    • A
      Remove fs.h from mm.h · 4e950f6f
      Alexey Dobriyan 提交于
      Remove fs.h from mm.h. For this,
       1) Uninline vma_wants_writenotify(). It's pretty huge anyway.
       2) Add back fs.h or less bloated headers (err.h) to files that need it.
      
      As result, on x86_64 allyesconfig, fs.h dependencies cut down from 3929 files
      rebuilt down to 3444 (-12.3%).
      
      Cross-compile tested without regressions on my two usual configs and (sigh):
      
      alpha              arm-mx1ads        mips-bigsur          powerpc-ebony
      alpha-allnoconfig  arm-neponset      mips-capcella        powerpc-g5
      alpha-defconfig    arm-netwinder     mips-cobalt          powerpc-holly
      alpha-up           arm-netx          mips-db1000          powerpc-iseries
      arm                arm-ns9xxx        mips-db1100          powerpc-linkstation
      arm-assabet        arm-omap_h2_1610  mips-db1200          powerpc-lite5200
      arm-at91rm9200dk   arm-onearm        mips-db1500          powerpc-maple
      arm-at91rm9200ek   arm-picotux200    mips-db1550          powerpc-mpc7448_hpc2
      arm-at91sam9260ek  arm-pleb          mips-ddb5477         powerpc-mpc8272_ads
      arm-at91sam9261ek  arm-pnx4008       mips-decstation      powerpc-mpc8313_rdb
      arm-at91sam9263ek  arm-pxa255-idp    mips-e55             powerpc-mpc832x_mds
      arm-at91sam9rlek   arm-realview      mips-emma2rh         powerpc-mpc832x_rdb
      arm-ateb9200       arm-realview-smp  mips-excite          powerpc-mpc834x_itx
      arm-badge4         arm-rpc           mips-fulong          powerpc-mpc834x_itxgp
      arm-carmeva        arm-s3c2410       mips-ip22            powerpc-mpc834x_mds
      arm-cerfcube       arm-shannon       mips-ip27            powerpc-mpc836x_mds
      arm-clps7500       arm-shark         mips-ip32            powerpc-mpc8540_ads
      arm-collie         arm-simpad        mips-jazz            powerpc-mpc8544_ds
      arm-corgi          arm-spitz         mips-jmr3927         powerpc-mpc8560_ads
      arm-csb337         arm-trizeps4      mips-malta           powerpc-mpc8568mds
      arm-csb637         arm-versatile     mips-mipssim         powerpc-mpc85xx_cds
      arm-ebsa110        i386              mips-mpc30x          powerpc-mpc8641_hpcn
      arm-edb7211        i386-allnoconfig  mips-msp71xx         powerpc-mpc866_ads
      arm-em_x270        i386-defconfig    mips-ocelot          powerpc-mpc885_ads
      arm-ep93xx         i386-up           mips-pb1100          powerpc-pasemi
      arm-footbridge     ia64              mips-pb1500          powerpc-pmac32
      arm-fortunet       ia64-allnoconfig  mips-pb1550          powerpc-ppc64
      arm-h3600          ia64-bigsur       mips-pnx8550-jbs     powerpc-prpmc2800
      arm-h7201          ia64-defconfig    mips-pnx8550-stb810  powerpc-ps3
      arm-h7202          ia64-gensparse    mips-qemu            powerpc-pseries
      arm-hackkit        ia64-sim          mips-rbhma4200       powerpc-up
      arm-integrator     ia64-sn2          mips-rbhma4500       s390
      arm-iop13xx        ia64-tiger        mips-rm200           s390-allnoconfig
      arm-iop32x         ia64-up           mips-sb1250-swarm    s390-defconfig
      arm-iop33x         ia64-zx1          mips-sead            s390-up
      arm-ixp2000        m68k              mips-tb0219          sparc
      arm-ixp23xx        m68k-amiga        mips-tb0226          sparc-allnoconfig
      arm-ixp4xx         m68k-apollo       mips-tb0287          sparc-defconfig
      arm-jornada720     m68k-atari        mips-workpad         sparc-up
      arm-kafa           m68k-bvme6000     mips-wrppmc          sparc64
      arm-kb9202         m68k-hp300        mips-yosemite        sparc64-allnoconfig
      arm-ks8695         m68k-mac          parisc               sparc64-defconfig
      arm-lart           m68k-mvme147      parisc-allnoconfig   sparc64-up
      arm-lpd270         m68k-mvme16x      parisc-defconfig     um-x86_64
      arm-lpd7a400       m68k-q40          parisc-up            x86_64
      arm-lpd7a404       m68k-sun3         powerpc              x86_64-allnoconfig
      arm-lubbock        m68k-sun3x        powerpc-cell         x86_64-defconfig
      arm-lusl7200       mips              powerpc-celleb       x86_64-up
      arm-mainstone      mips-atlas        powerpc-chrp32
      Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      4e950f6f