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  1. 06 12月, 2009 1 次提交
  3. 04 12月, 2009 1 次提交
  5. 18 6月, 2009 16 次提交
  7. 28 3月, 2009 1 次提交
  9. 20 3月, 2009 1 次提交
    • T
      NFS: Optimise NFS close() · 7fe5c398
      由 Trond Myklebust 提交于 
      Close-to-open cache consistency rules really only require us to flush out
writes on calls to close(), and require us to revalidate attributes on the
very last close of the file.

Currently we appear to be doing a lot of extra attribute revalidation
and cache flushes.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      7fe5c398
  11. 12 3月, 2009 3 次提交
  13. 11 3月, 2009 1 次提交
    • T
      NFSv3: Fix posix ACL code · ae46141f
      由 Trond Myklebust 提交于 
      Fix a memory leak due to allocation in the XDR layer. In cases where the
RPC call needs to be retransmitted, we end up allocating new pages without
clearing the old ones. Fix this by moving the allocation into
nfs3_proc_setacls().

Also fix an issue discovered by Kevin Rudd, whereby the amount of memory
reserved for the acls in the xdr_buf->head was miscalculated, and causing
corruption.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      ae46141f
  15. 24 12月, 2008 2 次提交
  17. 15 10月, 2008 1 次提交
    • T
      NFS: Fix the resolution problem with nfs_inode_attrs_need_update() · 4704f0e2
      由 Trond Myklebust 提交于 
      It appears that 'jiffies' timestamps do not have high enough resolution for
nfs_inode_attrs_need_update(). One problem is that a GETATTR can be
launched within < 1 jiffy of the last operation that updated the attribute.
Another problem is that RPC calls can take < 1 jiffy to execute.

We can fix this by switching the variables to use a simple global counter
that gets incremented every time we start another GETATTR call.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      4704f0e2
  19. 09 10月, 2008 1 次提交
  21. 08 10月, 2008 2 次提交
    • C
      NFS: SETCLIENTID truncates client ID and netid · d1ce02e1
      由 Chuck Lever 提交于 
      The sc_name field is currently 56 bytes long.  This is not large enough
to hold a pair of IPv6 addresses, the authentication type, the protocol
name, and a uniquifier number.  The maximum possible size of the name
string using IPv6 addresses is just under 110 bytes, so I increased the
size of the sc_name field to accomodate this maximum.

In addition, the strings in the nfs4_setclientid structure are
constructed with scnprintf(), which wants to terminate its output with
'\0'.  The sc_netid field was large enough only for a three byte netid
string and a '\0' so inet6 netids were being truncated.  Perhaps we
don't need the overhead of scnprintf() to do a simple string copy, but
I fixed this by increasing the size of the buffer by one byte.

Since all three of the string buffers in nfs4_setclientid are
constructed with scnprintf(), I increased the size of all three by one
byte to document the requirement, although I don't think either the
universal address field or the name field will be so small that these
strings get truncated in this way.

The size of the Linux client's client ID on the wire will be larger
than before.  RFC 3530 suggests the size limit for client IDs is 1024,
and we are still well below that.
Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      d1ce02e1
    • R
      NFS: remove 8 bytes of padding from struct nfs_fattr on 64 bit builds · 9fa8d66f
      由 Richard Kennedy 提交于 
      remove 8 bytes of padding from struct nfs_fattr on 64 bit builds

This also removes padding from several nfs structures, including
16 bytes from  nfs4_opendata, nfs4_createdata,nfs3_createdata
& 8 bytes from nfs_read_data,nfs_write_data,nfs_removeres,nfs4_closedata

This also reduces the reported stack usage of many nfs functions (30+).
Signed-off-by: NRichard Kennedy <richard@rsk.demon.co.uk>
----

This patch is against the latest git 2.6.27-rc4.
I've built & run this on my AMD64 desktop, & successfully run _simple_
tests with a  64 bit client => 32 bit server & 32 bit client to 64 bit
server.

On fedora with gcc (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8) checkpatch
reports 33 functions with reduced stack usage.
e.g.
__nfs_revalidate_inode [nfs] 216 => 200
_nfs4_proc_access [nfs] 304 => 288
_nfs4_proc_link [nfs] 536 => 504
_nfs4_proc_remove [nfs] 304 => 288
_nfs4_proc_rename [nfs] 584 => 552
nfs3_proc_access [nfs] 272 => 256
nfs3_proc_getacl [nfs] 384 => 368
nfs3_proc_link [nfs] 496 => 464
etc
I can supply the complete list if anyone is interested.

regards
Richard
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      9fa8d66f
  23. 10 7月, 2008 2 次提交
  25. 20 4月, 2008 1 次提交
    • T
      NFSv4: Only increment the sequence id if the server saw it · c1d51931
      由 Trond Myklebust 提交于 
      It is quite possible that the OPEN, CLOSE, LOCK, LOCKU,... compounds fail
before the actual stateful operation has been executed (for instance in the
PUTFH call). There is no way to tell from the overall status result which
operations were executed from the COMPOUND.

The fix is to move incrementing of the sequence id into the XDR layer,
so that we do it as we process the results from the stateful operation.
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      c1d51931
  27. 30 1月, 2008 4 次提交
  29. 10 10月, 2007 2 次提交
  31. 20 7月, 2007 1 次提交
    • T
      SUNRPC: Clean up the sillyrename code · e4eff1a6
      由 Trond Myklebust 提交于 
      Fix a couple of bugs:
 - Don't rely on the parent dentry still being valid when the call completes.
   Fixes a race with shrink_dcache_for_umount_subtree()

 - Don't remove the file if the filehandle has been labelled as stale.

Fix a couple of inefficiencies
 - Remove the global list of sillyrenamed files. Instead we can cache the
   sillyrename information in the dentry->d_fsdata
 - Move common code from unlink_setup/unlink_done into fs/nfs/unlink.c
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      e4eff1a6