Add qsort

[yaffs2.git] / yaffs_fs.c

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 101cecf1c62e3729fdade0f99b8ce1dc5708c739..bcc148be595671a52a49cfa5685db679b78e6f89 100644 (file)
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -31,7 +31,7 @@
  */
 
 const char *yaffs_fs_c_version =
-    "$Id: yaffs_fs.c,v 1.42 2006-02-08 07:52:51 charles Exp $";
+    "$Id: yaffs_fs.c,v 1.47 2006-05-17 09:36:06 charles Exp $";
 extern const char *yaffs_guts_c_version;
 
 #include <linux/config.h>
@@ -73,7 +73,10 @@ extern const char *yaffs_guts_c_version;
 #include "yportenv.h"
 #include "yaffs_guts.h"
 
-unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | YAFFS_TRACE_BAD_BLOCKS /* | 0xFFFFFFFF */; 
+unsigned yaffs_traceMask = YAFFS_TRACE_ALWAYS | 
+                          YAFFS_TRACE_BAD_BLOCKS | 
+                          YAFFS_TRACE_CHECKPOINT
+                          /* | 0xFFFFFFFF */; 
 
 #include <linux/mtd/mtd.h>
 #include "yaffs_mtdif.h"
@@ -129,6 +132,9 @@ static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
                        struct inode *new_dir, struct dentry *new_dentry);
 static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
 
+static int yaffs_sync_fs(struct super_block *sb);
+static int yaffs_write_super(struct super_block *sb);
+
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
 static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
 #else
@@ -214,6 +220,8 @@ static struct super_operations yaffs_super_ops = {
        .put_super = yaffs_put_super,
        .delete_inode = yaffs_delete_inode,
        .clear_inode = yaffs_clear_inode,
+       .sync_fs = yaffs_sync_fs,
+       .write_super = yaffs_write_super,
 };
 
 static void yaffs_GrossLock(yaffs_Device * dev)
@@ -1249,6 +1257,47 @@ static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
        return 0;
 }
 
+
+
+static int yaffs_do_sync_fs(struct super_block *sb)
+{
+
+       yaffs_Device *dev = yaffs_SuperToDevice(sb);
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n"));
+
+       if(sb->s_dirt) {
+               yaffs_GrossLock(dev);
+
+               if(dev)
+                       yaffs_CheckpointSave(dev);
+               
+               yaffs_GrossUnlock(dev);
+
+               sb->s_dirt = 0;
+       }
+       return 0;
+}
+
+
+static int yaffs_write_super(struct super_block *sb)
+{
+
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));
+       return 0; /* yaffs_do_sync_fs(sb);*/
+       
+}
+
+
+static int yaffs_sync_fs(struct super_block *sb)
+{
+
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
+       
+       return 0; /* yaffs_do_sync_fs(sb);*/
+       
+}
+
+
 static void yaffs_read_inode(struct inode *inode)
 {
        /* NB This is called as a side effect of other functions, but
@@ -1277,15 +1326,28 @@ static void yaffs_put_super(struct super_block *sb)
 {
        yaffs_Device *dev = yaffs_SuperToDevice(sb);
 
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n"));
+
        yaffs_GrossLock(dev);
+       
+       yaffs_FlushEntireDeviceCache(dev);
+       
        if (dev->putSuperFunc) {
                dev->putSuperFunc(sb);
        }
+       
+       yaffs_CheckpointSave(dev);
        yaffs_Deinitialise(dev);
+       
        yaffs_GrossUnlock(dev);
 
        /* we assume this is protected by lock_kernel() in mount/umount */
        list_del(&dev->devList);
+       
+       if(dev->spareBuffer){
+               YFREE(dev->spareBuffer);
+               dev->spareBuffer = NULL;
+       }
 
        kfree(dev);
 }
@@ -1304,6 +1366,15 @@ static void yaffs_MTDPutSuper(struct super_block *sb)
 }
 
 
+static void yaffs_MarkSuperBlockDirty(void *vsb)
+{
+       struct super_block *sb = (struct super_block *)vsb;
+       
+       T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb));
+//     if(sb)
+//             sb->s_dirt = 1;
+}
+
 static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                                                     struct super_block *sb,
                                                     void *data, int silent)
@@ -1405,7 +1476,7 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
                if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
                    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) {
                        T(YAFFS_TRACE_ALWAYS,
-                         ("yaffs: MTD device does not support have the "
+                         ("yaffs: MTD device does not have the "
                           "right page sizes\n"));
                        return NULL;
                }
@@ -1488,6 +1559,10 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
        dev->initialiseNAND = nandmtd_InitialiseNAND;
 
        dev->putSuperFunc = yaffs_MTDPutSuper;
+       
+       dev->superBlock = (void *)sb;
+       dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
+       
 
 #ifndef CONFIG_YAFFS_DOES_ECC
        dev->useNANDECC = 1;
@@ -1900,5 +1975,5 @@ module_init(init_yaffs_fs)
 module_exit(exit_yaffs_fs)
 
 MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002,2003,2004");
+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
 MODULE_LICENSE("GPL");