1. 09 Mar, 2017 5 commits
  2. 08 Mar, 2017 8 commits
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ea6200e8
      Linus Torvalds authored
      Pull sched.h split-up fixes for MIPS from Ingo Molnar:
       "These are the fixes for MIPS build failures due to the sched.h
        split-up, from Arnd Bergmann"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        MIPS: Add missing include files
      ea6200e8
    • Tony Luck's avatar
      mm, page_alloc: Add missing check for memory holes · b4fb8f66
      Tony Luck authored
      Commit 13ad59df ("mm, page_alloc: avoid page_to_pfn() when merging
      buddies") moved the check for memory holes out of page_is_buddy() and
      had the callers do the check.
      
      But this wasn't done correctly in one place which caused ia64 to crash
      very early in boot.
      
      Update to fix that and make ia64 boot again.
      
      [ v2: Vlastimil pointed out we don't need to call page_to_pfn()
            since we already have the result of that in "buddy_pfn" ]
      
      Fixes: 13ad59df
      
       ("avoid page_to_pfn() when merging buddies")
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
      Cc: Johannes Weiner <hannes@cmpxchg.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      b4fb8f66
    • Linus Torvalds's avatar
      Merge tag 'ktest-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest · 8557b8e4
      Linus Torvalds authored
      Pull ktest fixes from Steven Rostedt:
       "Greg Kroah-Hartman reported to me that the ktest of v4.11-rc1 locked
        up in an infinite loop while doing the make mrproper.
      
        Looking into the cause I noticed that a recent update to the function
        run_command (used for running all shell commands, including "make
        mrproper") changed the internal loop to use the function
        wait_for_input.
      
        The wait_for_input function uses select to look at two file
        descriptors. One is the file descriptor of the command it is running,
        the other is STDIN. The STDIN check was not checking the return status
        of the sysread call, and was also just writing a lot of data into
        syswrite without regard to the size of the data read.
      
        Changing the code to check the return status of sysread, and also to
        still process the passed in descriptor data without looping back to
        the select fixed Greg's problem.
      
        While looking at this code I also realized that the loop did not honor
        the timeout if STDIN always had input (or for some reason return
        error). this could prevent wait_for_input to timeout on the file
        descriptor it is suppose to be waiting for. That is fixed too"
      
      * tag 'ktest-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
        ktest: Make sure wait_for_input does honor the timeout
        ktest: Fix while loop in wait_for_input
      8557b8e4
    • Linus Torvalds's avatar
      overlayfs: remove now unnecessary header file include · 04bb94b1
      Linus Torvalds authored
      This removes the extra include header file that was added in commit
      e58bc927
      
       "Pull overlayfs updates from Miklos Szeredi" now that it
      is no longer needed.
      
      There are probably other such includes that got added during the
      scheduler header splitup series, but this is the one that annoyed me
      personally and I know about.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      04bb94b1
    • Linus Torvalds's avatar
      sched/headers: fix up header file dependency on <linux/sched/signal.h> · bd0f9b35
      Linus Torvalds authored
      The scheduler header file split and cleanups ended up exposing a few
      nasty header file dependencies, and in particular it showed how we in
      <linux/wait.h> ended up depending on "signal_pending()", which now comes
      from <linux/sched/signal.h>.
      
      That's a very subtle and annoying dependency, which already caused a
      semantic merge conflict (see commit e58bc927
      
       "Pull overlayfs updates
      from Miklos Szeredi", which added that fixup in the merge commit).
      
      It turns out that we can avoid this dependency _and_ improve code
      generation by moving the guts of the fairly nasty helper #define
      __wait_event_interruptible_locked() to out-of-line code.  The code that
      includes the signal_pending() check is all in the slow-path where we
      actually go to sleep waiting for the event anyway, so using a helper
      function is the right thing to do.
      
      Using a helper function is also what we already did for the non-locked
      versions, see the "__wait_event*()" macros and the "prepare_to_wait*()"
      set of helper functions.
      
      We might want to try to unify all these macro games, we have a _lot_ of
      subtly different wait-event loops.  But this is the minimal patch to fix
      the annoying header dependency.
      Acked-by: default avatarIngo Molnar <mingo@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      bd0f9b35
    • Steven Rostedt (VMware)'s avatar
      ktest: Make sure wait_for_input does honor the timeout · f7c6401f
      Steven Rostedt (VMware) authored
      
      
      The function wait_for_input takes in a timeout, and even has a default
      timeout. But if for some reason the STDIN descriptor keeps sending in data,
      the function will never time out. The timout is to wait for the data from
      the passed in file descriptor, not for STDIN. Adding a test in the case
      where there's no data from the passed in file descriptor that checks to see
      if the timeout passed, will ensure that it will timeout properly even if
      there's input in STDIN.
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      f7c6401f
    • Steven Rostedt (VMware)'s avatar
      ktest: Fix while loop in wait_for_input · 99c014a8
      Steven Rostedt (VMware) authored
      
      
      The run_command function was changed to use the wait_for_input function to
      allow having a timeout if the command to run takes too much time. There was
      a bug in the wait_for_input where it could end up going into an infinite
      loop. There's two issues here. One is that the return value of the sysread
      wasn't used for the write (to write a proper size), and that it should
      continue processing the passed in file descriptor too even if there was
      input. There was no check for error, if for some reason STDIN returned an
      error, the function would go into an infinite loop and never exit.
      Reported-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Tested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Fixes: 6e98d1b4
      
       ("ktest: Add timeout to ssh command")
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      99c014a8
    • Arnd Bergmann's avatar
      MIPS: Add missing include files · fc69910f
      Arnd Bergmann authored
      
      
      After the split of linux/sched.h, several platforms in arch/mips stopped building.
      
      Add the respective additional #include statements to fix the problem I first
      tried adding these into asm/processor.h, but ran into circular header
      dependencies with that which I could not figure out.
      
      The commit I listed as causing the problem is the branch merge, as there is
      likely a combination of multiple patches in that branch.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-mips@linux-mips.org
      Cc: ralf@linux-mips.org
      Fixes: 1827adb1 ("Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")
      Link: http://lkml.kernel.org/r/20170308072931.3836696-1-arnd@arndb.de
      
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      fc69910f
  3. 07 Mar, 2017 27 commits