1. 07 Nov, 2005 1 commit
  2. 31 Oct, 2005 2 commits
  3. 30 Oct, 2005 2 commits
    • Hugh Dickins's avatar
      [PATCH] mm: arches skip ptlock · b462705a
      Hugh Dickins authored
      
      
      Convert those few architectures which are calling pud_alloc, pmd_alloc,
      pte_alloc_map on a user mm, not to take the page_table_lock first, nor drop it
      after.  Each of these can continue to use pte_alloc_map, no need to change
      over to pte_alloc_map_lock, they're neither racy nor swappable.
      
      In the sparc64 io_remap_pfn_range, flush_tlb_range then falls outside of the
      page_table_lock: that's okay, on sparc64 it's like flush_tlb_mm, and that has
      always been called from outside of page_table_lock in dup_mmap.
      Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      b462705a
    • Hugh Dickins's avatar
      [PATCH] mm: init_mm without ptlock · 872fec16
      Hugh Dickins authored
      
      
      First step in pushing down the page_table_lock.  init_mm.page_table_lock has
      been used throughout the architectures (usually for ioremap): not to serialize
      kernel address space allocation (that's usually vmlist_lock), but because
      pud_alloc,pmd_alloc,pte_alloc_kernel expect caller holds it.
      
      Reverse that: don't lock or unlock init_mm.page_table_lock in any of the
      architectures; instead rely on pud_alloc,pmd_alloc,pte_alloc_kernel to take
      and drop it when allocating a new one, to check lest a racing task already
      did.  Similarly no page_table_lock in vmalloc's map_vm_area.
      
      Some temporary ugliness in __pud_alloc and __pmd_alloc: since they also handle
      user mms, which are converted only by a later patch, for now they have to lock
      differently according to whether or not it's init_mm.
      
      If sources get muddled, there's a danger that an arch source taking
      init_mm.page_table_lock will be mixed with common source also taking it (or
      neither take it).  So break the rules and make another change, which should
      break the build for such a mismatch: remove the redundant mm arg from
      pte_alloc_kernel (ppc64 scrapped its distinct ioremap_mm in 2.6.13).
      
      Exceptions: arm26 used pte_alloc_kernel on user mm, now pte_alloc_map; ia64
      used pte_alloc_map on init_mm, now pte_alloc_kernel; parisc had bad args to
      pmd_alloc and pte_alloc_kernel in unused USE_HPPA_IOREMAP code; ppc64
      map_io_page forgot to unlock on failure; ppc mmu_mapin_ram and ppc64 im_free
      took page_table_lock for no good reason.
      Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      872fec16
  4. 17 Sep, 2005 1 commit
  5. 09 Sep, 2005 1 commit
  6. 08 Sep, 2005 1 commit
    • viro@ZenIV.linux.org.uk's avatar
      [PATCH] Kconfig fix (BLK_DEV_FD dependencies) · a08b6b79
      viro@ZenIV.linux.org.uk authored
      
      
      Sanitized and fixed floppy dependencies: split the messy dependencies for
      BLK_DEV_FD by introducing a new symbol (ARCH_MAY_HAVE_PC_FDC), making
      BLK_DEV_FD depend on that one and taking declarations of ARCH_MAY_HAVE_PC_FDC
      to arch/*/Kconfig.  While we are at it, fixed several obvious cases when
      BLK_DEV_FD should have been excluded (architectures lacking asm/floppy.h
      are *not* going to have floppy.c compile, let alone work).
      
      If you can come up with better name for that ("this architecture might
      have working PC-compatible floppy disk controller"), you are more than
      welcome - just s/ARCH_MAY_HAVE_PC_FDC/your_prefered_name/g in the patch
      below...
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      a08b6b79
  7. 07 Sep, 2005 2 commits
  8. 29 Aug, 2005 1 commit
    • Steven Rostedt's avatar
      [PATCH] convert signal handling of NODEFER to act like other Unix boxes. · 69be8f18
      Steven Rostedt authored
      
      
      It has been reported that the way Linux handles NODEFER for signals is
      not consistent with the way other Unix boxes handle it.  I've written a
      program to test the behavior of how this flag affects signals and had
      several reports from people who ran this on various Unix boxes,
      confirming that Linux seems to be unique on the way this is handled.
      
      The way NODEFER affects signals on other Unix boxes is as follows:
      
      1) If NODEFER is set, other signals in sa_mask are still blocked.
      
      2) If NODEFER is set and the signal is in sa_mask, then the signal is
      still blocked. (Note: this is the behavior of all tested but Linux _and_
      NetBSD 2.0 *).
      
      The way NODEFER affects signals on Linux:
      
      1) If NODEFER is set, other signals are _not_ blocked regardless of
      sa_mask (Even NetBSD doesn't do this).
      
      2) If NODEFER is set and the signal is in sa_mask, then the signal being
      handled is not blocked.
      
      The patch converts signal handling in all current Linux architectures to
      the way most Unix boxes work.
      
      Unix boxes that were tested:  DU4, AIX 5.2, Irix 6.5, NetBSD 2.0, SFU
      3.5 on WinXP, AIX 5.3, Mac OSX, and of course Linux 2.6.13-rcX.
      
      * NetBSD was the only other Unix to behave like Linux on point #2. The
      main concern was brought up by point #1 which even NetBSD isn't like
      Linux.  So with this patch, we leave NetBSD as the lonely one that
      behaves differently here with #2.
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      69be8f18
  9. 04 Aug, 2005 1 commit
  10. 26 Jul, 2005 1 commit
  11. 12 Jul, 2005 1 commit
    • Sam Ravnborg's avatar
      [NET]: add a top-level Networking menu to *config · d5950b43
      Sam Ravnborg authored
      
      
      Create a new top-level menu named "Networking" thus moving
      net related options and protocol selection way from the drivers
      menu and up on the top-level where they belong.
      
      To implement this all architectures has to source "net/Kconfig" before
      drivers/*/Kconfig in their Kconfig file. This change has been
      implemented for all architectures.
      
      Device drivers for ordinary NIC's are still to be found
      in the Device Drivers section, but Bluetooth, IrDA and ax25
      are located with their corresponding menu entries under the new
      networking menu item.
      Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d5950b43
  12. 23 Jun, 2005 2 commits
    • Ian Campbell's avatar
      [PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh · 0f8e2d62
      Ian Campbell authored
      
      
      The attached patch causes the various arch specific install.sh scripts to
      look for ${CROSS_COMPILE}installkernel rather than just installkernel (in
      both /sbin/ and ~/bin/ where the script already did this).  This allows you
      to have e.g.  arm-linux-installkernel as a handy way to install on your
      cross target.  It also prevents the script picking up on the host
      /sbin/installkernel which causes the script to fall through and do the
      install itself (which is what I actually use myself, with $INSTALL_PATH
      set).
      
      I don't believe it causes back-compatibility problems since calling the
      host installkernel was never likely to work or be what you wanted when
      cross compiling anyway.  If $CROSS_COMPILE isn't set then nothing changes.
      
      I only use ARM and i386 myself but I figured it couldn't hurt to do the
      whole lot.  I've cc'd those who I hope are the arch maintainers for files
      that I've touched.
      Signed-off-by: default avatarIan Campbell <icampbell@arcom.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      0f8e2d62
    • Dave Hansen's avatar
      [PATCH] make each arch use mm/Kconfig · 3f22ab27
      Dave Hansen authored
      
      
      For all architectures, this just means that you'll see a "Memory Model"
      choice in your architecture menu.  For those that implement DISCONTIGMEM,
      you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool
      y" and make your users select DISCONTIGMEM right out of the new choice
      menu.  The only disadvantage might be if you have some specific things that
      you need in your help option to explain something about DISCONTIGMEM.
      Signed-off-by: default avatarDave Hansen <haveblue@us.ibm.com>
      Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      3f22ab27
  13. 20 Jun, 2005 1 commit
  14. 04 May, 2005 1 commit
    • Al Viro's avatar
      [PATCH] ISA DMA Kconfig fixes - part 1 · 5cae841b
      Al Viro authored
      
      
      A bunch of drivers use ISA DMA helpers or their equivalents for
      platforms that have ISA with different DMA controller (a lot of ARM
      boxen).  Currently there is no way to put such dependency in Kconfig -
      CONFIG_ISA is not it (e.g.  it is not set on platforms that have no ISA
      slots, but have on-board devices that pretend to be ISA ones).
      
      New symbol added - ISA_DMA_API.  Set when we have functional
      enable_dma()/set_dma_mode()/etc.  set of helpers.  Next patches in the
      series will add missing dependencies for drivers that need them.
      
      I'm very carefully staying the hell out of the recurring flamefest on
      what exactly CONFIG_ISA would mean in ideal world - added symbol has a
      well-defined meaning and for now I really want to treat it as completely
      independent from the mess around CONFIG_ISA.
      Signed-off-by: default avatarAl Viro <viro@parcelfarce.linux.theplanet.co.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      5cae841b
  15. 01 May, 2005 2 commits
  16. 19 Apr, 2005 1 commit
  17. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4