NFS: Drop inode after rename

When doing a rename on top of an existing file that is not in use,
the inode of the overwritten file will remain in the icache.

The fix is to dec

NFS: Drop inode after rename

When doing a rename on top of an existing file that is not in use,
the inode of the overwritten file will remain in the icache.

The fix is to decrement i_nlink of the overwritten inode, like we
do for unlink, rmdir etc already.

Problem diagnosed by Olaf Kirch. This patch is a slight variation
on his fix.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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[PATCH] NFSv4: unbalanced BKL in nfs_atomic_lookup()

Added missing unlock_kernel() to NFSv4 atomic lookup.

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond

[PATCH] NFSv4: unbalanced BKL in nfs_atomic_lookup()

Added missing unlock_kernel() to NFSv4 atomic lookup.

Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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[PATCH] NFS: Introduce the use of inode->i_lock to protect fields in nfsi

Down the road we want to eliminate the use of the global kernel lock entirely
from the NFS client. To do this,

[PATCH] NFS: Introduce the use of inode->i_lock to protect fields in nfsi

Down the road we want to eliminate the use of the global kernel lock entirely
from the NFS client. To do this, we need to protect the fields in the
nfs_inode structure adequately. Start by serializing updates to the
"cache_validity" field.

Note this change addresses an SMP hang found by njw@osdl.org, where processes
deadlock because nfs_end_data_update and nfs_revalidate_mapping update the
"cache_validity" field without proper serialization.

Test plan:
Millions of fsx ops on SMP clients. Run Nick Wilson's breaknfs program on
large SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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[PATCH] NFS: use atomic bitops to manipulate flags in nfsi->flags

Introduce atomic bitops to manipulate the bits in the nfs_inode structure's
"flags" field.

Using bitops means w

[PATCH] NFS: use atomic bitops to manipulate flags in nfsi->flags

Introduce atomic bitops to manipulate the bits in the nfs_inode structure's
"flags" field.

Using bitops means we can use a generic wait_on_bit call instead of an ad hoc
locking scheme in fs/nfs/inode.c, so we can remove the "nfs_i_wait" field from
nfs_inode at the same time.

The other new flags field will continue to use bitmask and logic AND and OR.
This permits several flags to be set at the same time efficiently. The
following patch adds a spin lock to protect these flags, and this spin lock
will later cover other fields in the nfs_inode structure, amortizing the cost
of using this type of serialization.

Test plan:
Millions of fsx ops on SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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[PATCH] NFS: split nfsi->flags into two fields

Certain bits in nfsi->flags can be manipulated with atomic bitops, and some
are better manipulated via logical bitmask operations.

[PATCH] NFS: split nfsi->flags into two fields

Certain bits in nfsi->flags can be manipulated with atomic bitops, and some
are better manipulated via logical bitmask operations.

This patch splits the flags field into two. The next patch introduces atomic
bitops for one of the fields.

Test plan:
Millions of fsx ops on SMP clients.

Signed-off-by: Chuck Lever <cel@netapp.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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[PATCH] NFS: Clean up readdir changes.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

[PATCH] NFS: Hide NFS server-generated readdir cookies from userland

NFSv3 currently returns the unsigned 64-bit cookie directly to
userspace. The following patch causes the kernel to

[PATCH] NFS: Hide NFS server-generated readdir cookies from userland

NFSv3 currently returns the unsigned 64-bit cookie directly to
userspace. The following patch causes the kernel to generate
loff_t offsets for the benefit of userland.
The current server-generated READDIR cookie is cached in the
nfs_open_context instead of in filp->f_pos, so we still end up work
correctly under directory insertions/deletion.

Signed-off-by: Olivier Galibert <galibert@pobox.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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[PATCH] NFS: Add support for NFSv3 ACLs

This adds acl support fo nfs clients via the NFSACL protocol extension, by
implementing the getxattr, listxattr, setxattr, and removexattr iops

[PATCH] NFS: Add support for NFSv3 ACLs

This adds acl support fo nfs clients via the NFSACL protocol extension, by
implementing the getxattr, listxattr, setxattr, and removexattr iops for the
system.posix_acl_access and system.posix_acl_default attributes. This patch
implements a dumb version that uses no caching (and thus adds some overhead).
(Another patch in this patchset adds caching as well.)

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Olaf Kirch <okir@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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[PATCH] NFSv4: Add {get,set,list}xattr methods for nfs4

Add {get,set,list}xattr methods for nfs4. The new methods are no-ops, to be
used by subsequent ACL patch.

Signed-off-

[PATCH] NFSv4: Add {get,set,list}xattr methods for nfs4

Add {get,set,list}xattr methods for nfs4. The new methods are no-ops, to be
used by subsequent ACL patch.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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[PATCH] NFS: Remove unused NFS inode field readdir_timestamp.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

[PATCH] NFS: Header file cleanup...

- Move NFSv4 state definitions into a private header file.
- Clean up gunk in nfs_fs.h

Signed-off-by: Trond Myklebust <Trond.Myklebust@net

[PATCH] NFS: Header file cleanup...

- Move NFSv4 state definitions into a private header file.
- Clean up gunk in nfs_fs.h

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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[PATCH] NFS: Fix lookup intent handling

We should never apply a lookup intent to anything other than the last
path component in an open(), create() or access() call.

Introduce t

[PATCH] NFS: Fix lookup intent handling

We should never apply a lookup intent to anything other than the last
path component in an open(), create() or access() call.

Introduce the helper nfs_lookup_check_intent() which always returns
zero if LOOKUP_CONTINUE or LOOKUP_PARENT are set, and returns the
intent flags if we're on the last component of the lookup.
By doing so, we fix a bug in open(O_EXCL), where we may end up
optimizing away a real lookup of the parent directory.

Problem noticed by Linda Dunaphant <linda.dunaphant@ccur.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we

Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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