libglusterfs: Implement float percentage

Change-Id: Ia7ea63471f0bbd74686873f5f6f183475880f1a0
BUG: 839595
Signed-off-by: Pranith Kumar K <pranithk@gluster.com>
Reviewed-on: http://review.gluster.org/4162
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

4 files changed, 21 insertions, 20 deletions

diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index be4dea90c..0f2df514f 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -243,8 +243,8 @@ struct dht_conf {
         gf_boolean_t   search_unhashed;
         int            gen;
         dht_du_t      *du_stats;
-        uint64_t       min_free_disk;
-	uint32_t       min_free_inodes;
+        double         min_free_disk;
+	double         min_free_inodes;
         char           disk_unit;
         int32_t        refresh_interval;
         gf_boolean_t   unhashed_sticky_bit;
diff --git a/xlators/cluster/dht/src/dht.c b/xlators/cluster/dht/src/dht.c
index 80d00c96b..d7b1e9655 100644
--- a/xlators/cluster/dht/src/dht.c
+++ b/xlators/cluster/dht/src/dht.c
@@ -125,8 +125,8 @@ dht_priv_dump (xlator_t *this)
 
         gf_proc_dump_write("search_unhashed", "%d", conf->search_unhashed);
         gf_proc_dump_write("gen", "%d", conf->gen);
-        gf_proc_dump_write("min_free_disk", "%lu", conf->min_free_disk);
-	gf_proc_dump_write("min_free_inodes", "%lu", conf->min_free_inodes);
+        gf_proc_dump_write("min_free_disk", "%lf", conf->min_free_disk);
+	gf_proc_dump_write("min_free_inodes", "%lf", conf->min_free_inodes);
         gf_proc_dump_write("disk_unit", "%c", conf->disk_unit);
         gf_proc_dump_write("refresh_interval", "%d", conf->refresh_interval);
         gf_proc_dump_write("unhashed_sticky_bit", "%d", conf->unhashed_sticky_bit);
@@ -326,7 +326,7 @@ reconfigure (xlator_t *this, dict_t *options)
                           percent_or_size, out);
         /* option can be any one of percent or bytes */
         conf->disk_unit = 0;
-        if (conf->min_free_disk < 100)
+        if (conf->min_free_disk < 100.0)
                 conf->disk_unit = 'p';
 
 	GF_OPTION_RECONF ("min-free-inodes", conf->min_free_inodes, options,
diff --git a/xlators/cluster/dht/src/nufa.c b/xlators/cluster/dht/src/nufa.c
index 53c66aa45..a2a97ab3c 100644
--- a/xlators/cluster/dht/src/nufa.c
+++ b/xlators/cluster/dht/src/nufa.c
@@ -502,7 +502,8 @@ init (xlator_t *this)
         int            ret = -1;
         int            i = 0;
         char           my_hostname[256];
-        uint32_t       temp_free_disk = 0;
+        double         temp_free_disk = 0;
+        uint64_t       size = 0;
 
         if (!this->children) {
                 gf_log (this->name, GF_LOG_CRITICAL,
@@ -587,16 +588,16 @@ init (xlator_t *this)
                 if (gf_string2percent (temp_str,
                                        &temp_free_disk) == 0) {
                         if (temp_free_disk > 100) {
-                                gf_string2bytesize (temp_str,
-                                                    &conf->min_free_disk);
+                                gf_string2bytesize (temp_str, &size);
+                                conf->min_free_disk = size;
                                 conf->disk_unit = 'b';
                         } else {
-                                conf->min_free_disk = (uint64_t)temp_free_disk;
+                                conf->min_free_disk = temp_free_disk;
                                 conf->disk_unit = 'p';
                         }
                 } else {
-                        gf_string2bytesize (temp_str,
-                                            &conf->min_free_disk);
+                        gf_string2bytesize (temp_str, &size);
+                        conf->min_free_disk = size;
                         conf->disk_unit = 'b';
                 }
         }
diff --git a/xlators/cluster/dht/src/switch.c b/xlators/cluster/dht/src/switch.c
index 0542d7f9a..2b4f97387 100644
--- a/xlators/cluster/dht/src/switch.c
+++ b/xlators/cluster/dht/src/switch.c
@@ -842,7 +842,8 @@ init (xlator_t *this)
         char                  *temp_str = NULL;
         int                    ret = -1;
         int                    i = 0;
-        uint32_t               temp_free_disk = 0;
+        double                 temp_free_disk = 0;
+        uint64_t               size = 0;
 
         if (!this->children) {
                 gf_log (this->name, GF_LOG_CRITICAL,
@@ -875,24 +876,23 @@ init (xlator_t *this)
                 gf_string2boolean (temp_str, &conf->unhashed_sticky_bit);
         }
 
-        conf->min_free_disk = 10;
+        conf->min_free_disk = 10.0;
         conf->disk_unit = 'p';
 
         if (dict_get_str (this->options, "min-free-disk",
                           &temp_str) == 0) {
-                if (gf_string2percent (temp_str,
-                                       &temp_free_disk) == 0) {
+                if (gf_string2percent (temp_str, &temp_free_disk) == 0) {
                         if (temp_free_disk > 100) {
-                                gf_string2bytesize (temp_str,
-                                                    &conf->min_free_disk);
+                                gf_string2bytesize (temp_str, &size);
+                                conf->min_free_disk = size;
                                 conf->disk_unit = 'b';
                         } else {
-                                conf->min_free_disk = (uint64_t)temp_free_disk;
+                                conf->min_free_disk = temp_free_disk;
                                 conf->disk_unit = 'p';
                         }
                 } else {
-                        gf_string2bytesize (temp_str,
-                                            &conf->min_free_disk);
+                        gf_string2bytesize (temp_str, &size);
+                        conf->min_free_disk = size;
                         conf->disk_unit = 'b';
                 }
         }