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| author | Andy Adamson <andros@netapp.com> | 2011-06-13 22:25:56 (GMT) |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-06-15 15:24:29 (GMT) |
| commit | 533eb4611c9eea53072eb6a61d5a6393b6a77ed7 (patch) | |
| tree | adb2b4cbfe85689979d2cf971b65ebcd0d383d56 /fs/nfs/internal.h | |
| parent | 1d92a08da23848a38eece4df7eaa4e8ec0e6c699 (diff) | |
| download | linux-533eb4611c9eea53072eb6a61d5a6393b6a77ed7.tar.xz | |
NFSv4.1: allow nfs_fhget to succeed with mounted on fileid
Commit 28331a46d88459788c8fca72dbb0415cd7f514c9 "Ensure we request the
ordinary fileid when doing readdirplus"
changed the meaning of NFS_ATTR_FATTR_FILEID which used to be set when
FATTR4_WORD1_MOUNTED_ON_FILED was requested.
Allow nfs_fhget to succeed with only a mounted on fileid when crossing
a mountpoint or a referral.
Ask for the fileid of the absent file system if mounted_on_fileid is not
supported.
Signed-off-by: Andy Adamson <andros@netapp.com>
cc:stable@kernel.org [2.6.39]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/internal.h')
| -rw-r--r-- | fs/nfs/internal.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index b9056cb..2a55347 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -45,6 +45,17 @@ static inline void nfs_attr_check_mountpoint(struct super_block *parent, struct fattr->valid |= NFS_ATTR_FATTR_MOUNTPOINT; } +static inline int nfs_attr_use_mounted_on_fileid(struct nfs_fattr *fattr) +{ + if (((fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) == 0) || + (((fattr->valid & NFS_ATTR_FATTR_MOUNTPOINT) == 0) && + ((fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) == 0))) + return 0; + + fattr->fileid = fattr->mounted_on_fileid; + return 1; +} + struct nfs_clone_mount { const struct super_block *sb; const struct dentry *dentry; |