Changeset 1fbe064b in mainline for uspace/srv

Timestamp:

2009-06-26T21:34:47Z (16 years ago)

Author:

Jiri Svoboda <jirik.svoboda@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

00fe6bb

Parents:

af65b72

Message:

Allow libblock to operate in write-through mode. With 'wtcache' mount option, FAT sets write-through mode on the cache.

File:

• uspace/srv/fs/fat/fat_ops.c (modified) (3 diffs)

uspace/srv/fs/fat/fat_ops.c

@@ -771 +771 @@
 {
         dev_handle_t dev_handle = (dev_handle_t) IPC_GET_ARG1(*request);
+        enum cache_mode cmode;
         fat_bs_t *bs;
         uint16_t bps;
@@ -798 +799 @@
         opts[size] = '\0';
 
+        /* Check for option enabling write through. */
+        if (str_cmp(opts, "wtcache") == 0)
+                cmode = CACHE_MODE_WT;
+        else
+                cmode = CACHE_MODE_WB;
+
         /* initialize libblock */
         rc = block_init(dev_handle, BS_SIZE);
@@ -827 +834 @@
 
         /* Initialize the block cache */
-        rc = block_cache_init(dev_handle, bps, 0 /* XXX */);
+        rc = block_cache_init(dev_handle, bps, 0 /* XXX */, cmode);
         if (rc != EOK) {
                 block_fini(dev_handle);