shithub: lwext4

Download patch

ref: fa3bffb20e71983f71aaf17f6a287546c01b924d
parent: 3fd80de784471aedfb32c3fef2690827576032b6
author: ngkaho1234 <[email protected]>
date: Sun Dec 20 05:51:14 EST 2015

ext4_bcache: add ext4_bcache_cleanup routine.

--- a/lwext4/ext4.c
+++ b/lwext4/ext4.c
@@ -403,6 +403,7 @@
 	/*Bind block cache to block device*/
 	r = ext4_block_bind_bcache(bd, bc);
 	if (r != EOK) {
+		ext4_bcache_cleanup(bc);
 		ext4_block_fini(bd);
 		if (mp->cache_dynamic) {
 			ext4_bcache_fini_dynamic(bc);
@@ -437,6 +438,7 @@
 
 	mp->mounted = 0;
 
+	ext4_bcache_cleanup(mp->fs.bdev->bc);
 	if (mp->cache_dynamic) {
 		ext4_bcache_fini_dynamic(mp->fs.bdev->bc);
 		free(mp->fs.bdev->bc);
--- a/lwext4/ext4_bcache.c
+++ b/lwext4/ext4_bcache.c
@@ -81,6 +81,15 @@
 	return EOK;
 }
 
+void ext4_bcache_cleanup(struct ext4_bcache *bc)
+{
+	struct ext4_buf *buf, *tmp;
+	RB_FOREACH_SAFE(buf, ext4_buf_lba, &bc->lba_root, tmp) {
+		ext4_block_flush_buf(bc->bdev, buf);
+		ext4_bcache_drop_buf(bc, buf);
+	}
+}
+
 int ext4_bcache_fini_dynamic(struct ext4_bcache *bc)
 {
 	memset(bc, 0, sizeof(struct ext4_bcache));
--- a/lwext4/ext4_bcache.h
+++ b/lwext4/ext4_bcache.h
@@ -219,6 +219,10 @@
 int ext4_bcache_init_dynamic(struct ext4_bcache *bc, uint32_t cnt,
 			     uint32_t itemsize);
 
+/**@brief   Do cleanup works on block cache.
+ * @param   bc block cache descriptor.*/
+void ext4_bcache_cleanup(struct ext4_bcache *bc);
+
 /**@brief   Dynamic de-initialization of block cache.
  * @param   bc block cache descriptor
  * @return  standard error code*/