performance/write-behind: Process state dump operations are added.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 213 (Support for process state dump)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=213

1 files changed, 43 insertions, 0 deletions

diff --git a/xlators/performance/write-behind/src/write-behind.c b/xlators/performance/write-behind/src/write-behind.c
index 71eb115435d..b67e53c370c 100644
--- a/xlators/performance/write-behind/src/write-behind.c
+++ b/xlators/performance/write-behind/src/write-behind.c
@@ -34,6 +34,7 @@
 #include "compat-errno.h"
 #include "common-utils.h"
 #include "call-stub.h"
+#include "statedump.h"
 
 #define MAX_VECTOR_COUNT 8
 #define WB_AGGREGATE_SIZE 131072 /* 128 KB */
@@ -2373,6 +2374,44 @@ wb_release (xlator_t *this, fd_t *fd)
         return 0;
 }
 
+int
+wb_priv_dump (xlator_t *this)
+{
+        wb_conf_t       *conf = NULL;
+        char            key[GF_DUMP_MAX_BUF_LEN];
+        char            key_prefix[GF_DUMP_MAX_BUF_LEN];
+
+        if (!this)
+                return -1;
+
+        conf = this->private;
+        if (!conf) {
+                gf_log (this->name, GF_LOG_WARNING,
+                        "conf null in xlator");
+                return -1;
+        }
+
+        gf_proc_dump_build_key (key_prefix,
+                                "xlator.performance.write-behind",
+                                "priv");
+
+        gf_proc_dump_add_section (key_prefix);
+
+        gf_proc_dump_build_key (key, key_prefix, "aggregate_size");
+        gf_proc_dump_write (key, "%d", conf->aggregate_size);
+        gf_proc_dump_build_key (key, key_prefix, "window_size");
+        gf_proc_dump_write (key, "%d", conf->window_size);
+        gf_proc_dump_build_key (key, key_prefix, "disable_till");
+        gf_proc_dump_write (key, "%d", conf->disable_till);
+        gf_proc_dump_build_key (key, key_prefix, "enable_O_SYNC");
+        gf_proc_dump_write (key, "%d", conf->enable_O_SYNC);
+        gf_proc_dump_build_key (key, key_prefix, "flush_behind");
+        gf_proc_dump_write (key, "%d", conf->flush_behind);
+        gf_proc_dump_build_key (key, key_prefix, "enable_trickling_writes");
+        gf_proc_dump_write (key, "%d", conf->enable_trickling_writes);
+
+        return 0;
+}
 
 int32_t 
 init (xlator_t *this)
@@ -2542,6 +2581,10 @@ struct xlator_cbks cbks = {
         .release  = wb_release
 };
 
+struct xlator_dumpops dumpops = {
+        .priv      =  wb_priv_dump,
+};
+
 struct volume_options options[] = {
         { .key  = {"flush-behind"}, 
           .type = GF_OPTION_TYPE_BOOL