readdir-ahead: Fix duplicate listing and cache size calculation

Issue:
If a opendir is followed by a closedir without readdir, though
the prefetched entries were freed, the freed size was not accounted
in priv->rda_cache_size. Thus the cache limit will exceed if there
are multiple opendir followed by closedir.

Fix:
Fix the pric->rda_cache_size calculation. Also have removed the
inode_ctx_size. Each perf xlator has its own cache limit that
it works with. Also the inode_ctx size can change, if a forget/
invalidate or any other factor triggers the inode_ctx size.

Change-Id: I9707ec558076ce046e58a55989ec9513c70ea029
BUG: 1431908
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: https://review.gluster.org/17504
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>

0 files changed, 0 insertions, 0 deletions