The patch titled
Subject: NILFS2: support NFSv2 export
has been added to the -mm tree. Its filename is
nilfs2-support-nfsv2-export.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/nilfs2-support-nfsv2-export.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/nilfs2-support-nfsv2-export.patch
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------------------------------------------------------
From: NeilBrown <neilb@xxxxxxx>
Subject: NILFS2: support NFSv2 export
The "fh_len" passed to ->fh_to_* is not guaranteed to be that same as that
returned by encode_fh - it may be larger.
With NFSv2, the filehandle is fixed length, so it may appear longer than
expected and be zero-padded.
So we must test that fh_len is at least some value, not exactly equal to
it.
Signed-off-by: NeilBrown <neilb@xxxxxxx>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nilfs2/namei.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff -puN fs/nilfs2/namei.c~nilfs2-support-nfsv2-export fs/nilfs2/namei.c
--- a/fs/nilfs2/namei.c~nilfs2-support-nfsv2-export
+++ a/fs/nilfs2/namei.c
@@ -496,8 +496,7 @@ static struct dentry *nilfs_fh_to_dentry
{
struct nilfs_fid *fid = (struct nilfs_fid *)fh;
- if ((fh_len != NILFS_FID_SIZE_NON_CONNECTABLE &&
- fh_len != NILFS_FID_SIZE_CONNECTABLE) ||
+ if (fh_len < NILFS_FID_SIZE_NON_CONNECTABLE ||
(fh_type != FILEID_NILFS_WITH_PARENT &&
fh_type != FILEID_NILFS_WITHOUT_PARENT))
return NULL;
@@ -510,7 +509,7 @@ static struct dentry *nilfs_fh_to_parent
{
struct nilfs_fid *fid = (struct nilfs_fid *)fh;
- if (fh_len != NILFS_FID_SIZE_CONNECTABLE ||
+ if (fh_len < NILFS_FID_SIZE_CONNECTABLE ||
fh_type != FILEID_NILFS_WITH_PARENT)
return NULL;
_
Patches currently in -mm which might be from neilb@xxxxxxx are
nilfs2-support-nfsv2-export.patch
linux-next.patch
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