1. 16 6月, 2011 1 次提交
  2. 16 1月, 2011 1 次提交
  3. 12 8月, 2010 1 次提交
    • W
      AFS: Implement an autocell mount capability [ver #2] · bec5eb61
      wanglei 提交于
      Implement the ability for the root directory of a mounted AFS filesystem to
      accept lookups of arbitrary directory names, to interpet the names as the names
      of cells, to look the cell names up in the DNS for AFSDB records and to mount
      the root.cell volume of the nominated cell on the pseudo-directory created by
      lookup.
      
      This facility is requested by passing:
      
      	-o autocell
      
      to the mountpoint for which this is desired, usually the /afs mount.
      
      To use this facility, a DNS upcall program is required for AFSDB records.  This
      can be obtained from:
      
      	http://people.redhat.com/~dhowells/afs/dns.afsdb.c
      
      It should be compiled with -lresolv and -lkeyutils and installed as, say:
      
      	/usr/sbin/dns.afsdb
      
      Then the following line needs to be added to /sbin/request-key.conf:
      
      	create	dns_resolver afsdb:*	*	/usr/sbin/dns.afsdb %k
      
      This can be tested by mounting AFS, say:
      
      	insmod dns_resolver.ko
      	insmod af-rxrpc.ko
      	insmod kafs.ko rootcell=grand.central.org
      	mount -t afs "#grand.central.org:root.cell." /afs -o autocell
      
      and doing:
      
      	ls /afs/grand.central.org/
      
      which should show:
      
      	archive/  cvs/  doc/  local/  project/  service/  software/  user/  www/
      
      if it works.
      Signed-off-by: NWang Lei <wang840925@gmail.com>
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Signed-off-by: NSteve French <sfrench@us.ibm.com>
      bec5eb61
  4. 10 8月, 2010 1 次提交
  5. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      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: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  6. 03 4月, 2009 1 次提交
  7. 07 6月, 2008 1 次提交
  8. 08 2月, 2008 1 次提交
  9. 29 1月, 2008 1 次提交
  10. 22 5月, 2007 1 次提交
    • A
      Detach sched.h from mm.h · e8edc6e0
      Alexey Dobriyan 提交于
      First thing mm.h does is including sched.h solely for can_do_mlock() inline
      function which has "current" dereference inside. By dealing with can_do_mlock()
      mm.h can be detached from sched.h which is good. See below, why.
      
      This patch
      a) removes unconditional inclusion of sched.h from mm.h
      b) makes can_do_mlock() normal function in mm/mlock.c
      c) exports can_do_mlock() to not break compilation
      d) adds sched.h inclusions back to files that were getting it indirectly.
      e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
         getting them indirectly
      
      Net result is:
      a) mm.h users would get less code to open, read, preprocess, parse, ... if
         they don't need sched.h
      b) sched.h stops being dependency for significant number of files:
         on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
         after patch it's only 3744 (-8.3%).
      
      Cross-compile tested on
      
      	all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
      	alpha alpha-up
      	arm
      	i386 i386-up i386-defconfig i386-allnoconfig
      	ia64 ia64-up
      	m68k
      	mips
      	parisc parisc-up
      	powerpc powerpc-up
      	s390 s390-up
      	sparc sparc-up
      	sparc64 sparc64-up
      	um-x86_64
      	x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig
      
      as well as my two usual configs.
      Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e8edc6e0
  11. 11 5月, 2007 1 次提交
  12. 10 5月, 2007 2 次提交
    • D
      AFS: implement basic file write support · 31143d5d
      David Howells 提交于
      Implement support for writing to regular AFS files, including:
      
       (1) write
      
       (2) truncate
      
       (3) fsync, fdatasync
      
       (4) chmod, chown, chgrp, utime.
      
      AFS writeback attempts to batch writes into as chunks as large as it can manage
      up to the point that it writes back 65535 pages in one chunk or it meets a
      locked page.
      
      Furthermore, if a page has been written to using a particular key, then should
      another write to that page use some other key, the first write will be flushed
      before the second is allowed to take place.  If the first write fails due to a
      security error, then the page will be scrapped and reread before the second
      write takes place.
      
      If a page is dirty and the callback on it is broken by the server, then the
      dirty data is not discarded (same behaviour as NFS).
      
      Shared-writable mappings are not supported by this patch.
      
      [akpm@linux-foundation.org: fix a bunch of warnings]
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      31143d5d
    • D
      AFS: AFS fixups · 416351f2
      David Howells 提交于
      Make some miscellaneous changes to the AFS filesystem:
      
       (1) Assert RCU barriers on module exit to make sure RCU has finished with
           callbacks in this module.
      
       (2) Correctly handle the AFS server returning a zero-length read.
      
       (3) Split out data zapping calls into one function (afs_zap_data).
      
       (4) Rename some afs_file_*() functions to afs_*() where they apply to
           non-regular files too.
      
       (5) Be consistent about the presentation of volume ID:vnode ID in debugging
           output.
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      416351f2
  13. 27 4月, 2007 5 次提交
  14. 15 2月, 2007 1 次提交
    • T
      [PATCH] remove many unneeded #includes of sched.h · cd354f1a
      Tim Schmielau 提交于
      After Al Viro (finally) succeeded in removing the sched.h #include in module.h
      recently, it makes sense again to remove other superfluous sched.h includes.
      There are quite a lot of files which include it but don't actually need
      anything defined in there.  Presumably these includes were once needed for
      macros that used to live in sched.h, but moved to other header files in the
      course of cleaning it up.
      
      To ease the pain, this time I did not fiddle with any header files and only
      removed #includes from .c-files, which tend to cause less trouble.
      
      Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
      arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
      allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
      configs in arch/arm/configs on arm.  I also checked that no new warnings were
      introduced by the patch (actually, some warnings are removed that were emitted
      by unnecessarily included header files).
      Signed-off-by: NTim Schmielau <tim@physik3.uni-rostock.de>
      Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      cd354f1a
  15. 27 9月, 2006 1 次提交
  16. 07 11月, 2005 1 次提交
  17. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      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