9p: implement optional loose read cache

[pandora-kernel.git] / fs / 9p / v9fs.c

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index d9b561b..6ad6f19 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -53,6 +53,8 @@ enum {
        Opt_uname, Opt_remotename,
        /* Options that take no arguments */
        Opt_legacy, Opt_nodevmap, Opt_unix, Opt_tcp, Opt_fd,
+       /* Cache options */
+       Opt_cache_loose,
        /* Error token */
        Opt_err
 };
@@ -76,6 +78,8 @@ static match_table_t tokens = {
        {Opt_fd, "fd"},
        {Opt_legacy, "noextend"},
        {Opt_nodevmap, "nodevmap"},
+       {Opt_cache_loose, "cache=loose"},
+       {Opt_cache_loose, "loose"},
        {Opt_err, NULL}
 };
 
@@ -106,6 +110,7 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses)
        v9ses->debug = 0;
        v9ses->rfdno = ~0;
        v9ses->wfdno = ~0;
+       v9ses->cache = 0;
 
        if (!options)
                return;
@@ -121,7 +126,6 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses)
                                        "integer field, but no integer?\n");
                                continue;
                        }
-
                }
                switch (token) {
                case Opt_port:
@@ -169,6 +173,9 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses)
                case Opt_nodevmap:
                        v9ses->nodev = 1;
                        break;
+               case Opt_cache_loose:
+                       v9ses->cache = CACHE_LOOSE;
+                       break;
                default:
                        continue;
                }