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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-09-28 22:45:51 +0200
committerJ. Bruce Fields <bfields@citi.umich.edu>2007-10-10 00:31:57 +0200
commita16e92edcd0a2846455a30823e1bac964e743baa (patch)
tree50893238dcccb1bcfc6c1160c3db4887d2f08eea /fs/nfsd
parentknfsd: nfsv4 delegation recall should take reference on client (diff)
downloadlinux-a16e92edcd0a2846455a30823e1bac964e743baa.tar.xz
linux-a16e92edcd0a2846455a30823e1bac964e743baa.zip
knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME
Without this we always return 2^32-1 as the the maximum namelength. Thanks to Andreas Gruenbacher for bug report and testing. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Andreas Gruenbacher <agruen@suse.de>
Diffstat (limited to 'fs/nfsd')
-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 9cf900740c76..e15f2cf8ac15 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1475,7 +1475,8 @@ 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);
@@ -1721,7 +1722,7 @@ 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)