This project is mirrored from https://git.kernel.org/pub/scm/linux/kernel/git/wagi/linux-cip-rt.git. The repository failed to update .
Repository mirroring has been paused due to too many failed attempts, and can be resumed by a project maintainer.
Last successful update .
  1. 21 Mar, 2012 1 commit
  2. 30 Mar, 2010 1 commit
    • Tejun Heo's avatar
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo authored
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Guess-its-ok-by: default avatarChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  3. 16 Oct, 2008 1 commit
    • Kirill A. Shutemov's avatar
      Allow recursion in binfmt_script and binfmt_misc · bf2a9a39
      Kirill A. Shutemov authored
      binfmt_script and binfmt_misc disallow recursion to avoid stack overflow
      using sh_bang and misc_bang.  It causes problem in some cases:
      
      $ echo '#!/bin/ls' > /tmp/t0
      $ echo '#!/tmp/t0' > /tmp/t1
      $ echo '#!/tmp/t1' > /tmp/t2
      $ chmod +x /tmp/t*
      $ /tmp/t2
      zsh: exec format error: /tmp/t2
      
      Similar problem with binfmt_misc.
      
      This patch introduces field 'recursion_depth' into struct linux_binprm to
      track recursion level in binfmt_misc and binfmt_script.  If recursion
      level more then BINPRM_MAX_RECURSION it generates -ENOEXEC.
      
      [akpm@linux-foundation.org: make linux_binprm.recursion_depth a uint]
      Signed-off-by: default avatarKirill A. Shutemov <kirill@shutemov.name>
      Cc: Pavel Emelyanov <xemul@openvz.org>
      Cc: Alexander Viro <viro@zeniv.linux.org.uk>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      bf2a9a39
  4. 29 Apr, 2008 1 commit
    • Pavel Emelyanov's avatar
      binfmt_misc.c: avoid potential kernel stack overflow · 3a2e7f47
      Pavel Emelyanov authored
      This can be triggered with root help only, but...
      
      Register the ":text:E::txt::/root/cat.txt:' rule in binfmt_misc (by root) and
      try launching the cat.txt file (by anyone) :) The result is - the endless
      recursion in the load_misc_binary -> open_exec -> load_misc_binary chain and
      stack overflow.
      
      There's a similar problem with binfmt_script, and there's a sh_bang memner on
      linux_binprm structure to handle this, but simply raising this in binfmt_misc
      may break some setups when the interpreter of some misc binaries is a script.
      
      So the proposal is to turn sh_bang into a bit, add a new one (the misc_bang)
      and raise it in load_misc_binary.  After this, even if we set up the misc ->
      script -> misc loop for binfmts one of them will step on its own bang and
      exit.
      Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      3a2e7f47
  5. 19 Oct, 2007 1 commit
  6. 08 May, 2007 1 commit
  7. 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