glusterfs.git/xlators/performance/md-cache, branch v3.3.0qa32

core: adding extra data for fops

2012-03-22T23:40:27+00:00

with this change, the xlator APIs will have a dictionary as extra
argument, which is passed between all the layers. This can be
utilized for overloading in some of the operations.

Change-Id: I58a8186b3ef647650280e63f3e5e9b9de7827b40
Signed-off-by: Amar Tumballi 
BUG: 782265
Reviewed-on: http://review.gluster.com/2960
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

Fix memory leaks found in readdir

2012-03-01T19:42:56+00:00

Change-Id: I0e221e4de9ee12586b09cd8bf7f394e9d4b88a11
BUG: 765785
Reviewed-on: http://review.gluster.com/2853
Tested-by: Gluster Build System 
Reviewed-by: Raghavendra Bhat 
Reviewed-by: Krishnan Parthasarathi 
Reviewed-by: Pranith Kumar Karampuri 
Reviewed-by: Vijay Bellur

perf/md-cache: hold lock on modification of md_cache structure

2012-03-01T03:45:45+00:00

as it is possible that multiple fops can alter the content of
md-cache structure from inode-ctx, we need to safe-guard the
issue of corruption due to race conditions.

Change-Id: Iea051f8f6adff7690d6d60f3cf82eda75150b449
Signed-off-by: Amar Tumballi 
BUG: 798179
Reviewed-on: http://review.gluster.com/2834
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

features/md-cache: Change strdup to gf_strdup

2012-02-21T10:28:54+00:00

Change-Id: Ic96e7d38b988efab49f723c9d1d46f65037a84ed
BUG: 795682
Reviewed-on: http://review.gluster.com/2783
Reviewed-by: Anand Avati 
Tested-by: Gluster Build System

performance/md-cache: Add mem_acct_init

2012-02-21T07:22:12+00:00

Change-Id: I1b91ee0bde160762548c39646ceb96c3c778e06c
BUG: 795651
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.com/2778
Reviewed-by: Vijay Bellur 
Tested-by: Gluster Build System

md-cache: replace stat-prefetch with md-cache in a backward compatible way

2012-02-21T05:14:49+00:00

- preserve CLI set option key as "performance.stat-prefetch"
- create a symlink stat-prefetch.so to point to md-cache.so

Change-Id: Ib95e7c30073f13ae04c39e9466967ba1db5a0614
BUG: 765785
Reviewed-on: http://review.gluster.com/2714
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

md-cache: meta-data caching translator

2012-02-21T05:14:28+00:00

This is a metadata caching translator which is well integrated with
glusterfs core framework and leverages some of the recent protocol
changes to do a better job at caching.

- It uses the attributes returned along callbacks of all calls to
  update its attribute cache as frequently as possible without
  issuing calls on its own (i.e, very low overhead)

- It caches attributes returned via readdirp into the inode contexts
  corresponding to those entries (i.e, well integrated)

- It caches and updates xattrs and not just inode attributes (i.e,
  eliminates the need for a separate xattr-prefetch translator)

In its current form it has a timeout based consistency model

Change-Id: I891f6225c1a4c08bb111e287571d5f6d326dbe97
BUG: 765785
Reviewed-on: http://review.gluster.com/2713
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati