]> git.sur5r.net Git - u-boot/blobdiff - fs/ext4/ext4_common.c
usb: ehci: poll_int_queue check real qtd, not the overlay
[u-boot] / fs / ext4 / ext4_common.c
index 62e2e804928c583727dd42c68fdde3d6f7ba8586..33d69c9c71f07819c73678c2efc7abc175a8c607 100644 (file)
@@ -1380,7 +1380,7 @@ void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
        unsigned int no_blks_reqd = 0;
 
        /* allocation of direct blocks */
-       for (i = 0; i < INDIRECT_BLOCKS; i++) {
+       for (i = 0; total_remaining_blocks && i < INDIRECT_BLOCKS; i++) {
                direct_blockno = ext4fs_get_new_blk_no();
                if (direct_blockno == -1) {
                        printf("no block left to assign\n");
@@ -1390,8 +1390,6 @@ void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
                debug("DB %ld: %u\n", direct_blockno, total_remaining_blocks);
 
                total_remaining_blocks--;
-               if (total_remaining_blocks == 0)
-                       break;
        }
 
        alloc_single_indirect_block(file_inode, &total_remaining_blocks,
@@ -1841,16 +1839,20 @@ long int read_allocated_block(struct ext2_inode *inode, int fileblock)
        return blknr;
 }
 
-void ext4fs_close(void)
+/**
+ * ext4fs_reinit_global() - Reinitialize values of ext4 write implementation's
+ *                         global pointers
+ *
+ * This function assures that for a file with the same name but different size
+ * the sequential store on the ext4 filesystem will be correct.
+ *
+ * In this function the global data, responsible for internal representation
+ * of the ext4 data are initialized to the reset state. Without this, during
+ * replacement of the smaller file with the bigger truncation of new file was
+ * performed.
+ */
+void ext4fs_reinit_global(void)
 {
-       if ((ext4fs_file != NULL) && (ext4fs_root != NULL)) {
-               ext4fs_free_node(ext4fs_file, &ext4fs_root->diropen);
-               ext4fs_file = NULL;
-       }
-       if (ext4fs_root != NULL) {
-               free(ext4fs_root);
-               ext4fs_root = NULL;
-       }
        if (ext4fs_indir1_block != NULL) {
                free(ext4fs_indir1_block);
                ext4fs_indir1_block = NULL;
@@ -1870,6 +1872,19 @@ void ext4fs_close(void)
                ext4fs_indir3_blkno = -1;
        }
 }
+void ext4fs_close(void)
+{
+       if ((ext4fs_file != NULL) && (ext4fs_root != NULL)) {
+               ext4fs_free_node(ext4fs_file, &ext4fs_root->diropen);
+               ext4fs_file = NULL;
+       }
+       if (ext4fs_root != NULL) {
+               free(ext4fs_root);
+               ext4fs_root = NULL;
+       }
+
+       ext4fs_reinit_global();
+}
 
 int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name,
                                struct ext2fs_node **fnode, int *ftype)