From 0a86bd1aa3004a9f27e59eb08f8facf312234737 Mon Sep 17 00:00:00 2001 From: Shehjar Tikoo Date: Thu, 25 Feb 2010 15:38:03 +0000 Subject: distribute: Respect end-of-dir on readdir only for last subvol We need to ensure that only the last subvolume's end-of-directory notification is respected so that directory reading does not stop before all subvolumes have been read. That could happen because the posix for each subvolume sends a ENOENT on end-of-directory but in distribute we're not concerned only with a posix's view of the directory but the aggregated namespace' view of the directory, which is maintained by distribute. Signed-off-by: Shehjar Tikoo Signed-off-by: Anand V. Avati BUG: 597 (miscellaneous fixes for xlators to work well with NFS xlator) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=597 --- xlators/cluster/dht/src/dht-helper.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'xlators/cluster/dht/src/dht-helper.c') diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c index 5a89ba58489..ebc0e5e014a 100644 --- a/xlators/cluster/dht/src/dht-helper.c +++ b/xlators/cluster/dht/src/dht-helper.c @@ -208,6 +208,27 @@ dht_first_up_subvol (xlator_t *this) return child; } +xlator_t * +dht_last_up_subvol (xlator_t *this) +{ + dht_conf_t *conf = NULL; + xlator_t *child = NULL; + int i = 0; + + conf = this->private; + LOCK (&conf->subvolume_lock); + { + for (i = conf->subvolume_cnt-1; i >= 0; i--) { + if (conf->subvolume_status[i]) { + child = conf->subvolumes[i]; + break; + } + } + } + UNLOCK (&conf->subvolume_lock); + + return child; +} xlator_t * dht_subvol_get_hashed (xlator_t *this, loc_t *loc) -- cgit