linux/fs/nfs
Trond Myklebust 75180df2ed NFS: Add the mount option "nosharecache"
Prior to David Howell's mount changes in 2.6.18, users who mounted
different directories which happened to be from the same filesystem on the
server would get different super blocks, and hence could choose different
mount options. As long as there were no hard linked files that crossed from
one subtree to another, this was quite safe.
Post the changes, if the two directories are on the same filesystem (have
the same 'fsid'), they will share the same super block, and hence the same
mount options.

Add a flag to allow users to elect not to share the NFS super block with
another mount point, even if the fsids are the same. This will allow
users to set different mount options for the two different super blocks, as
was previously possible. It is still up to the user to ensure that there
are no cache coherency issues when doing this, however the default
behaviour will be to share super blocks whenever two paths result in
the same fsid.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10 23:40:48 -04:00
..
callback_proc.c [PATCH] fs/nfs/callback* passes error values big-endian 2006-10-20 10:26:40 -07:00
callback_xdr.c [PATCH] knfsd: SUNRPC: Provide room in svc_rqst for larger addresses 2007-02-12 09:48:36 -08:00
callback.c [PATCH] knfsd: SUNRPC: Provide room in svc_rqst for larger addresses 2007-02-12 09:48:36 -08:00
callback.h NFS: Fix more sparse warnings 2007-05-14 19:33:46 -04:00
client.c NFSv4: Reduce the chances of an open_owner identifier collision 2007-07-10 23:40:39 -04:00
delegation.c NFSv4: Defer inode revalidation when setting up a delegation 2007-07-10 23:40:41 -04:00
delegation.h NFSv4: Use RCU to protect delegations 2007-07-10 23:40:41 -04:00
dir.c NFS: Fix an Oops in the nfs_access_cache_shrinker() 2007-07-10 23:40:25 -04:00
direct.c NFS: Replace vfsmount and dentry in nfs_open_context with struct path 2007-07-10 23:40:23 -04:00
file.c sendfile: convert nfs to using splice_read() 2007-07-10 08:04:14 +02:00
getroot.c NFS: Kill the obsolete NFS_PARANOIA 2007-05-09 17:58:01 -04:00
idmap.c NFS: use __set_current_state() 2007-05-09 17:58:01 -04:00
inode.c NFSv4: Defer inode revalidation when setting up a delegation 2007-07-10 23:40:41 -04:00
internal.h NFS: Clean-up: use correct type when converting NFS blocks to local blocks 2007-07-10 23:40:44 -04:00
iostat.h NFSv4: Fix an oops in nfs4_fill_super 2006-03-20 13:44:48 -05:00
Makefile NFS: Remake nfsroot_mount as a permanent part of NFS client 2007-07-10 23:40:46 -04:00
mount_clnt.c NFS: Improve debugging output in NFS in-kernel mount client 2007-07-10 23:40:47 -04:00
namespace.c [PATCH] mark struct inode_operations const 2 2007-02-12 09:48:46 -08:00
nfs2xdr.c SUNRPC: Remove the tk_auth macro... 2007-07-10 23:40:37 -04:00
nfs3acl.c NFSv3: Client-side nfsacl caching fix 2006-06-09 09:34:11 -04:00
nfs3proc.c NFS: nfs3_proc_create() should use nfs_post_op_update_inode() 2007-07-10 23:40:25 -04:00
nfs3xdr.c SUNRPC: Remove the tk_auth macro... 2007-07-10 23:40:37 -04:00
nfs4_fs.h NFSv4: Fix up stateid locking... 2007-07-10 23:40:43 -04:00
nfs4namespace.c NFSv4: /proc/mounts displays the wrong server name for referrals 2007-02-03 15:35:10 -08:00
nfs4proc.c NFSv4: Fix up stateid locking... 2007-07-10 23:40:43 -04:00
nfs4renewd.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
nfs4state.c NFSv4: Fix up stateid locking... 2007-07-10 23:40:43 -04:00
nfs4xdr.c NFSv4: Reduce the chances of an open_owner identifier collision 2007-07-10 23:40:39 -04:00
nfsroot.c NFS: Remake nfsroot_mount as a permanent part of NFS client 2007-07-10 23:40:46 -04:00
pagelist.c NFS: Replace NFS_I(inode)->req_lock with inode->i_lock 2007-07-10 23:40:38 -04:00
proc.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
read.c NFS: Replace vfsmount and dentry in nfs_open_context with struct path 2007-07-10 23:40:23 -04:00
super.c NFS: Add the mount option "nosharecache" 2007-07-10 23:40:48 -04:00
symlink.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
sysctl.c [PATCH] nfs: fix congestion control 2007-03-16 19:25:05 -07:00
unlink.c NFS: kzalloc conversion in fs/nfs 2006-03-20 13:44:10 -05:00
write.c NFS: Replace NFS_I(inode)->req_lock with inode->i_lock 2007-07-10 23:40:38 -04:00