1. 16 Sep, 2015 18 commits
  2. 15 Sep, 2015 12 commits
  3. 14 Sep, 2015 5 commits
  4. 12 Sep, 2015 5 commits
    • Linus Torvalds's avatar
      Linux 4.3-rc1 · 6ff33f39
      Linus Torvalds authored
      6ff33f39
    • Linus Torvalds's avatar
      Merge tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris · 6917b51d
      Linus Torvalds authored
      Pull CRIS updates from Jesper Nilsson:
       "Mostly removal of old cruft of which we can use a generic version, or
        fixes for code not commonly run in the cris port, but also additions
        to enable some good debug"
      
      * tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: (25 commits)
        CRISv10: delete unused lib/dmacopy.c
        CRISv10: delete unused lib/old_checksum.c
        CRIS: fix switch_mm() lockdep splat
        CRISv32: enable LOCKDEP_SUPPORT
        CRIS: add STACKTRACE_SUPPORT
        CRISv32: annotate irq enable in idle loop
        CRISv32: add support for irqflags tracing
        CRIS: UAPI: use generic types.h
        CRIS: UAPI: use generic shmbuf.h
        CRIS: UAPI: use generic msgbuf.h
        CRIS: UAPI: use generic socket.h
        CRIS: UAPI: use generic sembuf.h
        CRIS: UAPI: use generic sockios.h
        CRIS: UAPI: use generic auxvec.h
        CRIS: UAPI: use generic headers via Kbuild
        CRIS: UAPI: fix elf.h export
        CRIS: don't make asm/elf.h depend on asm/user.h
        CRIS: UAPI: fix ptrace.h
        CRISv32: Squash compile warnings for axisflashmap
        CRISv32: Add GPIO driver to the default configs
        ...
      6917b51d
    • Linus Torvalds's avatar
      blk: rq_data_dir() should not return a boolean · 10fbd36e
      Linus Torvalds authored
      rq_data_dir() returns either READ or WRITE (0 == READ, 1 == WRITE), not
      a boolean value.
      
      Now, admittedly the "!= 0" doesn't really change the value (0 stays as
      zero, 1 stays as one), but it's not only redundant, it confuses gcc, and
      causes gcc to warn about the construct
      
          switch (rq_data_dir(req)) {
              case READ:
                  ...
              case WRITE:
                  ...
      
      that we have in a few drivers.
      
      Now, the gcc warning is silly and stupid (it seems to warn not about the
      switch value having a different type from the case statements, but about
      _any_ boolean switch value), but in this case the code itself is silly
      and stupid too, so let's just change it, and get rid of warnings like
      this:
      
        drivers/block/hd.c: In function ‘hd_request’:
        drivers/block/hd.c:630:11: warning: switch condition has boolean value [-Wswitch-bool]
           switch (rq_data_dir(req)) {
      
      The odd '!= 0' came in when "cmd_flags" got turned into a "u64" in
      commit 5953316d ("block: make rq->cmd_flags be 64-bit") and is
      presumably because the old code (that just did a logical 'and' with 1)
      would then end up making the type of rq_data_dir() be u64 too.
      
      But if we want to retain the old regular integer type, let's just cast
      the result to 'int' rather than use that rather odd '!= 0'.
      Signed-off-by: default avatarLinus Torvalds <[email protected]>
      10fbd36e
    • Linus Torvalds's avatar
      Merge branch 'writeback-plugging' · e1df8b0a
      Linus Torvalds authored
      Fix up the writeback plugging introduced in commit d353d758
      ("writeback: plug writeback at a high level") that then caused problems
      due to the unplug happening with a spinlock held.
      
      * writeback-plugging:
        writeback: plug writeback in wb_writeback() and writeback_inodes_wb()
        Revert "writeback: plug writeback at a high level"
      e1df8b0a
    • Linus Torvalds's avatar
      writeback: plug writeback in wb_writeback() and writeback_inodes_wb() · 505a666e
      Linus Torvalds authored
      We had to revert the pluggin in writeback_sb_inodes() because the
      wb->list_lock is held, but we could easily plug at a higher level before
      taking that lock, and unplug after releasing it.  This does that.
      
      Chris will run performance numbers, just to verify that this approach is
      comparable to the alternative (we could just drop and re-take the lock
      around the blk_finish_plug() rather than these two commits.
      
      I'd have preferred waiting for actual performance numbers before picking
      one approach over the other, but I don't want to release rc1 with the
      known "sleeping function called from invalid context" issue, so I'll
      pick this cleanup version for now.  But if the numbers show that we
      really want to plug just at the writeback_sb_inodes() level, and we
      should just play ugly games with the spinlock, we'll switch to that.
      
      Cc: Chris Mason <[email protected]>
      Cc: Josef Bacik <[email protected]>
      Cc: Dave Chinner <[email protected]>
      Cc: Neil Brown <[email protected]>
      Cc: Jan Kara <[email protected]>
      Cc: Christoph Hellwig <[email protected]>
      Signed-off-by: default avatarLinus Torvalds <[email protected]>
      505a666e