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| author |   Dave Hansen <haveblue@us.ibm.com> | 2007-10-16 23:31:15 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:43:05 -0700 |
| commit | a8754beedbdc56864bc5f8c9461929a9b328b899 (patch) | |
| tree | a5748167a26b741af9b916a30c686a79312486a3 /fs/nfsd | |
| parent | r/o bind mounts: give permission() a local 'mnt' variable (diff) | |
| download | linux-dev-a8754beedbdc56864bc5f8c9461929a9b328b899.tar.xz linux-dev-a8754beedbdc56864bc5f8c9461929a9b328b899.zip | |
r/o bind mounts: create cleanup helper svc_msnfs()
I'm going to be modifying nfsd_rename() shortly to support read-only bind
mounts. This #ifdef is around the area I'm patching, and it starts to get
really ugly if I just try to add my new code by itself. Using this little
helper makes things a lot cleaner to use.
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/vfs.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 2a8d665b134b..1d72f993b66e 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -865,6 +865,15 @@ static int nfsd_direct_splice_actor(struct pipe_inode_info *pipe, return __splice_from_pipe(pipe, sd, nfsd_splice_actor); } +static inline int svc_msnfs(struct svc_fh *ffhp) +{ +#ifdef MSNFS + return (ffhp->fh_export->ex_flags & NFSEXP_MSNFS); +#else + return 0; +#endif +} + static __be32 nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, struct kvec *vec, int vlen, unsigned long *count) @@ -877,11 +886,9 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, err = nfserr_perm; inode = file->f_path.dentry->d_inode; -#ifdef MSNFS - if ((fhp->fh_export->ex_flags & NFSEXP_MSNFS) && - (!lock_may_read(inode, offset, *count))) + + if (svc_msnfs(fhp) && !lock_may_read(inode, offset, *count)) goto out; -#endif /* Get readahead parameters */ ra = nfsd_get_raparms(inode->i_sb->s_dev, inode->i_ino); |