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  1. 28 4月, 2012 6 次提交
  3. 27 4月, 2012 1 次提交
  5. 17 3月, 2012 1 次提交
    • T
      NFSv4.1: Clean ups and bugfixes for the pNFS read/writeback/commit code · 8dd37758
      由 Trond Myklebust 提交于 
      Move more pnfs-isms out of the generic commit code.

Bugfixes:

- filelayout_scan_commit_lists doesn't need to get/put the lseg.
  In fact since it is run under the inode->i_lock, the lseg_put()
  can deadlock.

- Ensure that we distinguish between what needs to be done for
  commit-to-data server and what needs to be done for commit-to-MDS
  using the new flag PG_COMMIT_TO_DS. Otherwise we may end up calling
  put_lseg() on a bucket for a struct nfs_page that got written
  through the MDS.

- Fix a case where we were using list_del() on an nfs_page->wb_list
  instead of list_del_init().

- filelayout_initiate_commit needs to call filelayout_commit_release
  on error instead of the mds_ops->rpc_release(). Otherwise it won't
  clear the commit lock.

Cleanups:

- Let the files layout manage the commit lists for the pNFS case.
  Don't expose stuff like pnfs_choose_commit_list, and the fact
  that the commit buckets hold references to the layout segment
  in common code.

- Cast out the put_lseg() calls for the struct nfs_read/write_data->lseg
  into the pNFS layer from whence they came.

- Let the pNFS layer manage the NFS_INO_PNFS_COMMIT bit.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
      8dd37758
  7. 06 3月, 2012 2 次提交
  9. 02 3月, 2012 1 次提交
    • T
      NFSv4.1: Get rid of redundant NFS4CLNT_LAYOUTRECALL tests · a59c30ac
      由 Trond Myklebust 提交于 
      The NFS4CLNT_LAYOUTRECALL tests in pnfs_layout_process and
pnfs_update_layout are redundant.

In the case of a bulk layout recall, we're always testing for
the NFS_LAYOUT_BULK_RECALL flay anyway.
In the case of a file or segment recall, the call to
pnfs_set_layout_stateid() updates the layout_header 'barrier'
sequence id, which triggers the test in pnfs_layoutgets_blocked()
and is less race-prone than NFS4CLNT_LAYOUTRECALL anyway.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      a59c30ac
  11. 07 2月, 2012 1 次提交
  13. 01 2月, 2012 1 次提交
  15. 06 1月, 2012 2 次提交
    • T
      NFS: Remove pNFS bloat from the generic write path · e2fecb21
      由 Trond Myklebust 提交于 
      We have no business doing any this in the standard write release path.
Get rid of it, and put it in the pNFS layer.

Also, while we're at it, get rid of the completely bogus unlock/relock
semantics that were present in nfs_writeback_release_full(). It is
not only unnecessary, but actually dangerous to release the write lock
just in order to take it again in nfs_page_async_flush(). Better just
to open code the pgio operations in a pnfs helper.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      e2fecb21
    • B
      pnfs-obj: Must return layout on IO error · fe0fe835
      由 Boaz Harrosh 提交于 
      As mandated by the standard. In case of an IO error, a pNFS
objects layout driver must return it's layout. This is because
all device errors are reported to the server as part of the
layout return buffer.

This is implemented the same way PNFS_LAYOUTRET_ON_SETATTR
is done, through a bit flag on the pnfs_layoutdriver_type->flags
member. The flag is set by the layout driver that wants a
layout_return preformed at pnfs_ld_{write,read}_done in case
of an error.
(Though I have not defined a wrapper like pnfs_ld_layoutret_on_setattr
 because this code is never called outside of pnfs.c and pnfs IO
 paths)

Without this patch 3.[0-2] Kernels leak memory and have an annoying
WARN_ON after every IO error utilizing the pnfs-obj driver.

[This patch is for 3.2 Kernel. 3.1/0 Kernels need a different patch]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      fe0fe835
  17. 11 11月, 2011 1 次提交
  19. 01 11月, 2011 1 次提交
    • P
      fs: add module.h to files that were implicitly using it · 143cb494
      由 Paul Gortmaker 提交于 
      Some files were using the complete module.h infrastructure without
actually including the header at all.  Fix them up in advance so
once the implicit presence is removed, we won't get failures like this:

  CC [M]  fs/nfsd/nfssvc.o
fs/nfsd/nfssvc.c: In function 'nfsd_create_serv':
fs/nfsd/nfssvc.c:335: error: 'THIS_MODULE' undeclared (first use in this function)
fs/nfsd/nfssvc.c:335: error: (Each undeclared identifier is reported only once
fs/nfsd/nfssvc.c:335: error: for each function it appears in.)
fs/nfsd/nfssvc.c: In function 'nfsd':
fs/nfsd/nfssvc.c:555: error: implicit declaration of function 'module_put_and_exit'
make[3]: *** [fs/nfsd/nfssvc.o] Error 1
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
      143cb494
  21. 31 10月, 2011 1 次提交
  23. 19 10月, 2011 3 次提交
  25. 01 8月, 2011 5 次提交
  27. 15 7月, 2011 3 次提交
  29. 13 7月, 2011 7 次提交
  31. 21 6月, 2011 2 次提交
  33. 16 6月, 2011 2 次提交