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authorAnand Avati <avati@redhat.com>2013-11-20 15:11:13 -0800
committerAnand Avati <avati@redhat.com>2013-11-21 13:11:18 -0800
commitfee08b2cbf8c118d33dea745e0ae3033b36969da (patch)
treee7f42b21457ba1fe63ad994559dba0d799fb4168 /xlators/nfs
parent544dee895a43ec9bb98fc8ace3d124d44bb617f2 (diff)
fuse: revalidate group id cache on uid/gid change detection
- Remember the uid and gid of the pid at the time of caching the group id list. - Next time when referring to the cache confirm that uid and gid of that pid has not changed since. If it has, treat it like a timeout/cache miss. - Solves group id caching issue caused when Samba runs on gluster FUSE mount and changes the uid/gid on a per syscall basis. Change-Id: I3382b037ff0b6d5eaaa36d9c898232543475aeda BUG: 1032438 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/6320 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
Diffstat (limited to 'xlators/nfs')
-rw-r--r--xlators/nfs/server/src/nfs-fops.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/xlators/nfs/server/src/nfs-fops.c b/xlators/nfs/server/src/nfs-fops.c
index 236b80c..60a5a9a 100644
--- a/xlators/nfs/server/src/nfs-fops.c
+++ b/xlators/nfs/server/src/nfs-fops.c
@@ -47,7 +47,7 @@ nfs_fix_groups (xlator_t *this, call_stack_t *root)
return;
}
- agl = gid_cache_lookup(&priv->gid_cache, root->uid);
+ agl = gid_cache_lookup(&priv->gid_cache, root->uid, 0, 0);
if (agl) {
for (ngroups = 0; ngroups < agl->gl_count; ngroups++)
root->groups[ngroups] = agl->gl_list[ngroups];
@@ -84,6 +84,8 @@ nfs_fix_groups (xlator_t *this, call_stack_t *root)
if (gl.gl_list) {
/* It's not fatal if the alloc failed. */
gl.gl_id = root->uid;
+ gl.gl_uid = 0;
+ gl.gl_gid = 0;
gl.gl_count = ngroups;
memcpy(gl.gl_list, mygroups, sizeof(gid_t) * ngroups);
if (gid_cache_add(&priv->gid_cache, &gl) != 1)