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authorJ. Bruce Fields <bfields@citi.umich.edu>2008-02-07 21:03:57 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-25 15:59:21 -0800
commitad14c9bb60583f9eac5e7b33c052d2a9614d113f (patch)
tree04f654a38297a2766ea275e876343afa4e88fcf4
parent29301cef1b0106eb400d83c971bdccf7e5bd6d46 (diff)
downloadlwn-ad14c9bb60583f9eac5e7b33c052d2a9614d113f.tar.gz
lwn-ad14c9bb60583f9eac5e7b33c052d2a9614d113f.zip
knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME
mainline: a16e92edcd0a2846455a30823e1bac964e743baa 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> CC: Oliver Pinter <oliver.pntr@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/nfsd/nfs4xdr.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 15809dfd88a5..0898aecbfa38 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1453,7 +1453,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
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)