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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-09-28 16:45:51 -0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2007-10-09 18:31:57 -0400
commita16e92edcd0a2846455a30823e1bac964e743baa (patch)
tree50893238dcccb1bcfc6c1160c3db4887d2f08eea
parentcfdcad4da1903720b9b8c1f176e46a0ebf546be3 (diff)
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>
-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 9cf900740c7..e15f2cf8ac1 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)