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    Subject[2.6.22.y] {16/17} - nfsv4-MAXNAME-fix.diff - series for stable kernel #2
    mainline: a16e92edcd0a2846455a30823e1bac964e743baa


    --
    Thanks,
    Oliver
    From: J. Bruce Fields <bfields@citi.umich.edu>
    Date: Fri, 28 Sep 2007 16:45:51 -0400
    Subject: knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME
    References: 271803
    Patch-mainline: 2.6.24 (likely)

    Without this we always return 2^32-1 as the the maximum namelength.

    Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
    Signed-off-by: Andreas Gruenbacher <agruen@suse.de>

    ---
    fs/nfsd/nfs4xdr.c | 5 +++--
    1 files changed, 3 insertions(+), 2 deletions(-)

    --- linux-2.6.22.orig/fs/nfsd/nfs4xdr.c
    +++ linux-2.6.22/fs/nfsd/nfs4xdr.c
    @@ -1453,7 +1453,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, s
    err = vfs_getattr(exp->ex_mnt, dentry, &stat);
    if (err)
    goto out_nfserr;
    - if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL)) ||
    + if ((bmval0 & (FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL |
    + FATTR4_WORD0_MAXNAME)) ||
    (bmval1 & (FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE |
    FATTR4_WORD1_SPACE_TOTAL))) {
    err = vfs_statfs(dentry, &statfs);
    @@ -1699,7 +1700,7 @@ out_acl:
    if (bmval0 & FATTR4_WORD0_MAXNAME) {
    if ((buflen -= 4) < 0)
    goto out_resource;
    - WRITE32(~(u32) 0);
    + WRITE32(statfs.f_namelen);
    }
    if (bmval0 & FATTR4_WORD0_MAXREAD) {
    if ((buflen -= 8) < 0)
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