booster: attr_timeout: Read timeout from booster fstab

In order to expose the timeout values for stat and inode
caching, this commit introduces a new fstab option "attr_timeout"
that defines the number of seconds for which a looked up inode
or a stat()'ed structure is valid in the cache.

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

1 files changed, 17 insertions, 0 deletions

diff --git a/booster/src/booster_fstab.c b/booster/src/booster_fstab.c
index dba785b5b4b..0a1282d686b 100644
--- a/booster/src/booster_fstab.c
+++ b/booster/src/booster_fstab.c
@@ -26,6 +26,9 @@
 #include <stdlib.h>
 #include <libglusterfsclient.h>
 
+/* The default timeout for inode and stat cache. */
+#define BOOSTER_DEFAULT_ATTR_TIMEO      5 /* In Secs */
+
 /* Prepare to begin reading and/or writing mount table entries from the
    beginning of FILE.  MODE is as for `fopen'.  */
 glusterfs_fstab_t *
@@ -362,6 +365,9 @@ booster_mount (struct glusterfs_mntent *ent)
 {
         char                    *opt = NULL;
         glusterfs_init_params_t ipars;
+        time_t                  timeout = BOOSTER_DEFAULT_ATTR_TIMEO;
+        char                    *timeostr = NULL;
+        char                    *endptr = NULL;
 
         if (!ent)
                 return;
@@ -385,6 +391,17 @@ booster_mount (struct glusterfs_mntent *ent)
         if (opt)
                 ipars.loglevel = get_option_value (opt);
 
+        /* Attribute cache timeout */
+        opt = glusterfs_fstab_hasoption (ent, "attr_timeout");
+        if (opt) {
+                 timeostr = get_option_value (opt);
+                 if (timeostr)
+                         timeout = strtol (timeostr, &endptr, 10);
+        }
+
+        ipars.lookup_timeout = timeout;
+        ipars.stat_timeout = timeout;
+
         glusterfs_mount (ent->mnt_dir, &ipars);
         clean_init_params (&ipars);
 }