1. 27 May, 2010 1 commit
    • FUJITA Tomonori's avatar
      asm-generic: remove ISA_DMA_THRESHOLD in scatterlist.h · 204f3a04
      FUJITA Tomonori authored
      This is the first half of the attempt to use asm-generic/scatterlist.h
      on every architecture.
      There are only two ways to define scatterlist structure. So it's easy
      to convert every architecture to use asm-generic/scatterlist.h.
      This patch:
      The trick for ISA_DMA_THRESHOLD in asm-generic/scatterlist.h doesn't work
      for powerpc.  This lets architectures defin ISA_DMA_THRESHOLD.
      Hopefully, we can remove ISA_DMA_THRESHOLD in the future; we can do better
      to decide if the bouncing is necessary or not.
      Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Richard Henderson <rth@twiddle.net>
      Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      Cc: Matt Turner <mattst88@gmail.com>
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
  2. 11 Sep, 2009 1 commit
  3. 01 Aug, 2008 1 commit
  4. 22 Oct, 2007 2 commits
    • Jens Axboe's avatar
      Add CONFIG_DEBUG_SG sg validation · d6ec0842
      Jens Axboe authored
      Add a Kconfig entry which will toggle some sanity checks on the sg
      entry and tables.
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
    • Jens Axboe's avatar
      Change table chaining layout · 18dabf47
      Jens Axboe authored
      Change the page member of the scatterlist structure to be an unsigned
      long, and encode more stuff in the lower bits:
      - Bits 0 and 1 zero: this is a normal sg entry. Next sg entry is located
        at sg + 1.
      - Bit 0 set: this is a chain entry, the next real entry is at ->page_link
        with the two low bits masked off.
      - Bit 1 set: this is the final entry in the sg entry. sg_next() will return
        NULL when passed such an entry.
      It's thus important that sg table users use the proper accessors to get
      and set the page member.
      Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
  5. 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!