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| author | Steven Whitehouse <swhiteho@redhat.com> | 2007-07-10 13:28:27 +0200 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2007-07-10 13:28:27 +0200 |
| commit | 3ebf44902f77537b5784eb5059c2b78d8b5a920a (patch) | |
| tree | 77290d029e6652ed09bb23c05b8b203bc569cd69 /fs/gfs2/ops_export.c | |
| parent | [GFS2] Small fixes to logging code (diff) | |
| download | linux-3ebf44902f77537b5784eb5059c2b78d8b5a920a.tar.xz linux-3ebf44902f77537b5784eb5059c2b78d8b5a920a.zip | |
[GFS2] Accept old format NFS filehandles
On Tue, 2007-07-10 at 10:06 +0100, Christoph Hellwig wrote:
> > -#define GFS2_LARGE_FH_SIZE 10
> > -
> > -struct gfs2_fh_obj {
> > - struct gfs2_inum_host this;
> > - u32 imode;
> > -};
> > +#define GFS2_LARGE_FH_SIZE 8
>
> Because gfs2_decode_fh only accepts file handles with GFS2_LARGE_FH_SIZE
> or GFS2_LARGE_FH_SIZE you don't accept filehandles sent out by and older
> gfs version anymore. Stale filehandles because of a new kernel version
> are a big no-no, so please add back code to handle the old filehandles
> on the decode side.
>
This should fix that problem I think since its only relating to end of
the fh we can just ignore that field in order to accept the older
format.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Wendy Cheng <wcheng@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_export.c')
| -rw-r--r-- | fs/gfs2/ops_export.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c index e317db2a5548..99ea5659bc2c 100644 --- a/fs/gfs2/ops_export.c +++ b/fs/gfs2/ops_export.c @@ -28,6 +28,7 @@ #define GFS2_SMALL_FH_SIZE 4 #define GFS2_LARGE_FH_SIZE 8 +#define GFS2_OLD_FH_SIZE 10 static struct dentry *gfs2_decode_fh(struct super_block *sb, __u32 *p, @@ -44,6 +45,7 @@ static struct dentry *gfs2_decode_fh(struct super_block *sb, switch (fh_len) { case GFS2_LARGE_FH_SIZE: + case GFS2_OLD_FH_SIZE: parent.no_formal_ino = ((u64)be32_to_cpu(fh[4])) << 32; parent.no_formal_ino |= be32_to_cpu(fh[5]); parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32; |