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authorAnand Avati <avati@gluster.com>2011-06-09 02:32:01 +0000
committerAnand Avati <avati@gluster.com>2011-06-09 01:35:21 -0700
commit42c85439fe470a8cb4eb82944cb5ed094b740f8e (patch)
tree86fef74377679ed16f16eed12e39755470be8f2a
parent29397bda249d8d3f93dd6ee5c449b3590dbaf15e (diff)
cluster/dht: use GFID returned from hashed subvolume
.. to perform lookups on remaining subvolumes. This way, if there is a race between two clients to 'fix' GFIDs with gfid-req, then the hashed subvolume will arbitrate and return the winner in stbuf->ia_gfid. This patch uses the returned gfid as the new gfid-req thereby preventing mismatching GFIDs on other servers due to further races. Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2522 ([glusterfs-3.1.3qa8]: rm -rf shows invalid argument) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2522
-rw-r--r--xlators/cluster/dht/src/dht-common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index cd2985002..8ca986d78 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -821,6 +821,7 @@ dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc)
int i = 0;
dht_conf_t *conf = NULL;
dht_local_t *local = NULL;
+ int ret = 0;
GF_VALIDATE_OR_GOTO ("dht", frame, out);
GF_VALIDATE_OR_GOTO ("dht", this, unwind);
@@ -844,6 +845,10 @@ dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc)
local->xattr = NULL;
}
+ if (!uuid_is_null (local->gfid))
+ ret = dict_set_static_bin (local->xattr_req, "gfid-req",
+ local->gfid, 16);
+
for (i = 0; i < call_cnt; i++) {
STACK_WIND (frame, dht_lookup_dir_cbk,
conf->subvolumes[i],