1. 27 7月, 2011 3 次提交
  2. 14 6月, 2011 2 次提交
  3. 08 6月, 2011 3 次提交
  4. 05 5月, 2011 1 次提交
  5. 22 3月, 2011 2 次提交
    • H
      ceph: add request to the tail of unsafe write list · 49bcb932
      Henry C Chang 提交于
      In sync_write_wait(), we assume that the newest request is at the
      tail of unsafe write list. We should maintain the semantics here.
      Signed-off-by: NHenry C Chang <henry_c_chang@tcloudcomputing.com>
      Signed-off-by: NSage Weil <sage@newdream.net>
      49bcb932
    • H
      ceph: remove request from unsafe list if it is canceled/timed out · 78a25565
      Henry C Chang 提交于
      This fixes the list corruption warning like this:
      
      ------------[ cut here ]------------
      WARNING: at lib/list_debug.c:30 __list_add+0x68/0x81()
      Hardware name: X8DTU
      list_add corruption. prev->next should be next (ffff880618931250), but was (null). (prev=ffff880c188b9130).
      Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs ceph libceph libcrc32c sunrpc ipv6 fuse igb i2c_i801 ioatdma i2c_core iTCO_wdt iTCO_vendor_support joydev dca serio_raw usb_storage [last unloaded: scsi_wait_scan]
      Pid: 10977, comm: smbd Tainted: G        W  2.6.32.23-170.Elaster.xendom0.fc12.x86_64 #1
      Call Trace:
      [<ffffffff8105753c>] warn_slowpath_common+0x7c/0x94
      [<ffffffff810575ab>] warn_slowpath_fmt+0x41/0x43
      [<ffffffff812351a3>] __list_add+0x68/0x81
      [<ffffffffa014799d>] ceph_aio_write+0x614/0x8a2 [ceph]
      [<ffffffff8111d2a0>] do_sync_write+0xe8/0x125
      [<ffffffff81075a1f>] ? autoremove_wake_function+0x0/0x39
      [<ffffffff811f21ec>] ? selinux_file_permission+0x5c/0xb3
      [<ffffffff811e8521>] ? security_file_permission+0x16/0x18
      [<ffffffff8111d864>] vfs_write+0xae/0x10b
      [<ffffffff8111d91b>] sys_pwrite64+0x5a/0x76
      [<ffffffff81012d32>] system_call_fastpath+0x16/0x1b
      ---[ end trace 08573eb9f07ff6f4 ]---
      Signed-off-by: NHenry C Chang <henry_c_chang@tcloudcomputing.com>
      Signed-off-by: NSage Weil <sage@newdream.net>
      78a25565
  6. 18 12月, 2010 1 次提交
  7. 16 12月, 2010 1 次提交
  8. 10 11月, 2010 2 次提交
  9. 08 11月, 2010 1 次提交
    • S
      ceph: fix open for write on clustered mds · 7421ab80
      Sage Weil 提交于
      Normally when we open a file we already have a cap, and simply update the
      wanted set.  However, if we open a file for write, but don't have an auth
      cap, that doesn't work; we need to open a new cap with the auth MDS.  Only
      reuse existing caps if we are opening for read or the existing cap is auth.
      Signed-off-by: NSage Weil <sage@newdream.net>
      7421ab80
  10. 21 10月, 2010 1 次提交
    • Y
      ceph: factor out libceph from Ceph file system · 3d14c5d2
      Yehuda Sadeh 提交于
      This factors out protocol and low-level storage parts of ceph into a
      separate libceph module living in net/ceph and include/linux/ceph.  This
      is mostly a matter of moving files around.  However, a few key pieces
      of the interface change as well:
      
       - ceph_client becomes ceph_fs_client and ceph_client, where the latter
         captures the mon and osd clients, and the fs_client gets the mds client
         and file system specific pieces.
       - Mount option parsing and debugfs setup is correspondingly broken into
         two pieces.
       - The mon client gets a generic handler callback for otherwise unknown
         messages (mds map, in this case).
       - The basic supported/required feature bits can be expanded (and are by
         ceph_fs_client).
      
      No functional change, aside from some subtle error handling cases that got
      cleaned up in the refactoring process.
      Signed-off-by: NSage Weil <sage@newdream.net>
      3d14c5d2
  11. 07 10月, 2010 1 次提交
  12. 04 8月, 2010 1 次提交
  13. 03 8月, 2010 1 次提交
  14. 02 8月, 2010 3 次提交
  15. 28 7月, 2010 1 次提交
  16. 30 5月, 2010 1 次提交
    • J
      fs/ceph: Use ERR_CAST · 7e34bc52
      Julia Lawall 提交于
      Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)).  The former makes more
      clear what is the purpose of the operation, which otherwise looks like a
      no-op.
      
      In the case of fs/ceph/inode.c, ERR_CAST is not needed, because the type of
      the returned value is the same as the type of the enclosing function.
      
      The semantic patch that makes this change is as follows:
      (http://coccinelle.lip6.fr/)
      
      // <smpl>
      @@
      type T;
      T x;
      identifier f;
      @@
      
      T f (...) { <+...
      - ERR_PTR(PTR_ERR(x))
      + x
       ...+> }
      
      @@
      expression x;
      @@
      
      - ERR_PTR(PTR_ERR(x))
      + ERR_CAST(x)
      // </smpl>
      Signed-off-by: NJulia Lawall <julia@diku.dk>
      Signed-off-by: NSage Weil <sage@newdream.net>
      7e34bc52
  17. 22 5月, 2010 1 次提交
  18. 18 5月, 2010 4 次提交
  19. 04 5月, 2010 1 次提交
  20. 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
  21. 02 3月, 2010 1 次提交
    • S
      ceph: return EBADF if waiting for caps on closed file · 195d3ce2
      Sage Weil 提交于
      Verify the file is actually open for the given caps when we are
      waiting for caps.  This ensures we will wake up and return EBADF
      if another thread closes the file out from under us.
      
      Note that EBADF is also the correct return code from write(2)
      when called on a file handle opened for reading (although the
      vfs should catch that).
      Signed-off-by: NSage Weil <sage@newdream.net>
      195d3ce2
  22. 24 2月, 2010 1 次提交
  23. 12 2月, 2010 3 次提交
  24. 07 1月, 2010 1 次提交
  25. 05 11月, 2009 1 次提交
  26. 07 10月, 2009 1 次提交
    • S
      ceph: file operations · 124e68e7
      Sage Weil 提交于
      File open and close operations, and read and write methods that ensure
      we have obtained the proper capabilities from the MDS cluster before
      performing IO on a file.  We take references on held capabilities for
      the duration of the read/write to avoid prematurely releasing them
      back to the MDS.
      
      We implement two main paths for read and write: one that is buffered
      (and uses generic_aio_{read,write}), and one that is fully synchronous
      and blocking (operating either on a __user pointer or, if O_DIRECT,
      directly on user pages).
      Signed-off-by: NSage Weil <sage@newdream.net>
      124e68e7