linux-toradex.git/fs/nfs/getroot.c, branch v3.7.6

nfs: include internal.h in getroot.h

2012-10-02T15:17:04+00:00

Sparse warning:
fs/nfs/nfs4getroot.c:11:5: warning: symbol 'nfs4_get_rootfh' was not declared.
Should it be static?

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

NFS: Move the v4 getroot code to nfs4getroot.c

2012-07-17T17:33:51+00:00

Signed-off-by: Bryan Schumaker 
Signed-off-by: Trond Myklebust

vfs: switch i_dentry/d_alias to hlist

2012-07-14T12:32:55+00:00

Signed-off-by: Al Viro

NFS: Create a single nfs_get_root()

2012-05-15T00:30:26+00:00

This patch splits out the NFS v4 specific functionality of
nfs4_get_root() into its own rpc_op called by the generic client, and
leaves nfs4_proc_get_rootfh() as its own stand alone function.  This
also allows me to change nfs4_remote_mount(), nfs4_xdev_mount() and
nfs4_remote_referral_mount() to use the generic client's nfs_get_root()
function.  Later patches in this series will collapse these functions
into one common function, so using the same get_root() function
everywhere simplifies future changes.

Signed-off-by: Bryan Schumaker 
Signed-off-by: Trond Myklebust

NFS: Rename nfs4_proc_get_root()

2012-05-15T00:30:25+00:00

This function is really getting the root filehandle and not the root
dentry of the filesystem.  I also removed the rpc_ops lookup from
nfs4_get_rootfh() under the assumption that if we reach this function
then we already know we are using NFS v4.

Signed-off-by: Bryan Schumaker 
Signed-off-by: Trond Myklebust

Remove all #inclusions of asm/system.h

2012-03-28T17:30:03+00:00

Remove all #inclusions of asm/system.h preparatory to splitting and killing
it.  Performed with the following command:

perl -p -i -e 's!^#\s*include\s*.*\n!!' `grep -Irl '^#\s*include\s*' *`

Signed-off-by: David Howells

switch open-coded instances of d_make_root() to new helper

2012-03-21T01:29:35+00:00

Signed-off-by: Al Viro

Merge branch 'nfs-for-2.6.39' into nfs-for-next

2011-03-24T21:03:14+00:00

nfs4: Fix NULL dereference at d_alloc_and_lookup()

2011-03-23T00:00:25+00:00

d_alloc_and_lookup() calls i_op->lookup method due to
rootfh changes his fsid.

During mount i_op of NFS root inode is set to
nfs_mountpoint_inode_operations, if rpc_ops->getroot()
and rpc_ops->getattr() return different fsid.

After that  nfs_follow_remote_path() raised oops:

   BUG: unable to handle kernel NULL pointer dereference at (null)
   IP: [<          (null)>]           (null)

stack trace:

     d_alloc_and_lookup+0x4c/0x74
     do_lookup+0x1e3/0x280
     link_path_walk+0x12e/0xab0
     nfs4_remote_get_sb+0x56/0x2c0 [nfs]
     path_walk+0x67/0xe0
     vfs_path_lookup+0x8e/0x100
     nfs_follow_remote_path+0x16f/0x3e0 [nfs]
     nfs4_try_mount+0x6f/0xd0 [nfs]
     nfs_get_sb+0x269/0x400 [nfs]
     vfs_kern_mount+0x8a/0x1f0
     do_kern_mount+0x52/0x130
     do_mount+0x20a/0x260
     sys_mount+0x90/0xe0
     system_call_fastpath+0x16/0x1b

So just refresh fsid, as RFC3530 doesn't specify behavior
in case of rootfh changes fsid.

Signed-off-by: Vitaliy Gusev 
Signed-off-by: Trond Myklebust

nfs: store devname at disconnected NFS roots

2011-03-16T20:44:24+00:00

part 2: make sure that disconnected roots have corresponding mnt_devname
values stashed into them.

Have nfs*_get_root() stuff a copy of devname into ->d_fsdata of the
found root, provided that it is disconnected.

Have ->d_release() free it when dentry goes away.

Have the places where NFS uses ->d_fsdata for sillyrename (and that
can *never* happen to a disconnected root - dentry will be attached
to its parent) free old devname copies if they find those.

Signed-off-by: Al Viro