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fd6002e9b8
linux/fs/nfs
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Fred Isaman fd6002e9b8 pnfs: change layout state seqlock to a spinlock 
This prepares for future changes, where the layout state needs
to change atomically with several other variables.  In particular,
it will need to know if lo->segs is empty, as we test that instead
of manipulating the NFS_LAYOUT_STATEID_SET bit.  Moreover, the
layoutstateid is not really a read-mostly structure, as it is
written almost as often as it is read.

The behavior of pnfs_get_layout_stateid is also slightly changed, so that
it no longer changes the stateid.  Its name is changed to +pnfs_choose_layoutget_stateid.

Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-01-06 14:46:31 -05:00
..
cache_lib.c
cache_lib.h
callback_proc.c NFS add session back channel draining 2011-01-06 14:46:25 -05:00
callback_xdr.c NFS add session back channel draining 2011-01-06 14:46:25 -05:00
callback.c NFS rename client back channel transport field 2011-01-06 14:46:25 -05:00
callback.h NFS add session back channel draining 2011-01-06 14:46:25 -05:00
client.c NFS refactor nfs_find_client and reference client across callback processing 2011-01-06 14:46:24 -05:00
delegation.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
delegation.h
dir.c nfsv4: Switch to generic xattr handling code 2011-01-04 13:10:41 -05:00
direct.c Pure nfs client performance using odirect. 2010-11-22 13:24:42 -05:00
dns_resolve.c
dns_resolve.h
file.c NFS: Fix fcntl F_GETLK not reporting some conflicts 2010-12-07 19:30:43 -05:00
fscache-index.c
fscache.c
fscache.h
getroot.c new helper: ihold() 2010-10-25 21:26:11 -04:00
idmap.c nfs: fix mispelling of idmap CONFIG symbol 2011-01-04 13:10:39 -05:00
inode.c NFS implement v4.0 callback_ident 2011-01-06 14:46:24 -05:00
internal.h NFS refactor nfs_find_client and reference client across callback processing 2011-01-06 14:46:24 -05:00
iostat.h
Kconfig lockd: push lock_flocks down 2010-10-27 21:39:39 +02:00
Makefile NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure 2010-10-24 18:07:11 -04:00
mount_clnt.c NFS: Remove redundant unlikely() 2010-12-21 11:51:23 -05:00
namespace.c
nfs2xdr.c SUNRPC: New xdr_streams XDR decoder API 2010-12-16 12:37:25 -05:00
nfs3acl.c
nfs3proc.c NFS: readdir with vmapped pages 2010-10-23 15:27:35 -04:00
nfs3xdr.c SUNRPC: New xdr_streams XDR decoder API 2010-12-16 12:37:25 -05:00
nfs4_fs.h nfsv4: Switch to generic xattr handling code 2011-01-04 13:10:41 -05:00
nfs4filelayout.c pnfs: add prefix to struct pnfs_layout_hdr fields 2011-01-06 14:46:31 -05:00
nfs4filelayout.h NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure 2010-10-24 18:07:11 -04:00
nfs4filelayoutdev.c NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure 2010-10-24 18:07:11 -04:00
nfs4namespace.c
nfs4proc.c pnfs: remove unnecessary field lgp->status 2011-01-06 14:46:30 -05:00
nfs4renewd.c
nfs4state.c NFS add session back channel draining 2011-01-06 14:46:25 -05:00
nfs4xdr.c pnfs: change layout state seqlock to a spinlock 2011-01-06 14:46:31 -05:00
nfsroot.c NFS: Fix a compile issue in nfs_root 2010-10-26 13:56:42 -04:00
pagelist.c nfs: Take advantage of kmem_cache_zalloc() in nfs_page_alloc() 2010-12-21 11:51:24 -05:00
pnfs.c pnfs: change layout state seqlock to a spinlock 2011-01-06 14:46:31 -05:00
pnfs.h pnfs: change layout state seqlock to a spinlock 2011-01-06 14:46:31 -05:00
proc.c NFS: Don't leak in nfs_proc_symlink() 2011-01-04 13:10:36 -05:00
read.c nfs: remove extraneous and problematic calls to nfs_clear_request 2010-12-07 23:02:44 -05:00
super.c nfsv4: Switch to generic xattr handling code 2011-01-04 13:10:41 -05:00
symlink.c
sysctl.c NFS: new idmapper 2010-10-07 18:48:49 -04:00
unlink.c NFSv4: Convert a few commas into semicolons... 2010-12-21 11:51:27 -05:00
write.c nfs: remove extraneous and problematic calls to nfs_clear_request 2010-12-07 23:02:44 -05:00