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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-01-29 18:43:25 +0530 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-03-14 09:15:28 -0400 |
| commit | 5fe0c2378884e68beb532f5890cc0e3539ac747b (patch) | |
| tree | be25414052184e146049ea6466854366559d5528 /fs/gfs2/export.c | |
| parent | c8b91accfa1059d5565443193d89572eca2f5dd6 (diff) | |
| download | linux-stable-5fe0c2378884e68beb532f5890cc0e3539ac747b.tar.gz linux-stable-5fe0c2378884e68beb532f5890cc0e3539ac747b.tar.bz2 linux-stable-5fe0c2378884e68beb532f5890cc0e3539ac747b.zip | |
exportfs: Return the minimum required handle size
The exportfs encode handle function should return the minimum required
handle size. This helps user to find out the handle size by passing 0
handle size in the first step and then redoing to the call again with
the returned handle size value.
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/gfs2/export.c')
| -rw-r--r-- | fs/gfs2/export.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c index 9023db8184f9..b5a5e60df0d5 100644 --- a/fs/gfs2/export.c +++ b/fs/gfs2/export.c @@ -36,9 +36,13 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *p, int *len, struct super_block *sb = inode->i_sb; struct gfs2_inode *ip = GFS2_I(inode); - if (*len < GFS2_SMALL_FH_SIZE || - (connectable && *len < GFS2_LARGE_FH_SIZE)) + if (connectable && (*len < GFS2_LARGE_FH_SIZE)) { + *len = GFS2_LARGE_FH_SIZE; return 255; + } else if (*len < GFS2_SMALL_FH_SIZE) { + *len = GFS2_SMALL_FH_SIZE; + return 255; + } fh[0] = cpu_to_be32(ip->i_no_formal_ino >> 32); fh[1] = cpu_to_be32(ip->i_no_formal_ino & 0xFFFFFFFF); |