ext3-check-jbd-errors-2.6.5.patch

非常经典的一个分布式系统

Index: linux-2.6.5-7.201-full/include/linux/ext3_fs.h
===================================================================
--- linux-2.6.5-7.201-full.orig/include/linux/ext3_fs.h	2006-08-09 17:59:34.000000000 +0400
+++ linux-2.6.5-7.201-full/include/linux/ext3_fs.h	2006-08-22 12:35:55.000000000 +0400
@@ -793,6 +793,7 @@ extern void ext3_put_super (struct super
 extern void ext3_write_super (struct super_block *);
 extern void ext3_write_super_lockfs (struct super_block *);
 extern void ext3_unlockfs (struct super_block *);
+extern void ext3_commit_super (struct super_block *, struct ext3_super_block *, int);
 extern int ext3_remount (struct super_block *, int *, char *);
 extern int ext3_statfs (struct super_block *, struct kstatfs *);
 
Index: linux-2.6.5-7.201-full/fs/ext3/super.c
===================================================================
--- linux-2.6.5-7.201-full.orig/fs/ext3/super.c	2006-08-09 17:59:37.000000000 +0400
+++ linux-2.6.5-7.201-full/fs/ext3/super.c	2006-08-09 17:59:37.000000000 +0400
@@ -39,7 +39,7 @@
 static int ext3_load_journal(struct super_block *, struct ext3_super_block *);
 static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
 			       int);
-static void ext3_commit_super (struct super_block * sb,
+void ext3_commit_super (struct super_block * sb,
 			       struct ext3_super_block * es,
 			       int sync);
 static void ext3_mark_recovery_complete(struct super_block * sb,
@@ -1781,7 +1781,7 @@ static int ext3_create_journal(struct su
 	return 0;
 }
 
-static void ext3_commit_super (struct super_block * sb,
+void ext3_commit_super (struct super_block * sb,
 			       struct ext3_super_block * es,
 			       int sync)
 {
Index: linux-2.6.5-7.201-full/fs/ext3/namei.c
===================================================================
--- linux-2.6.5-7.201-full.orig/fs/ext3/namei.c	2006-08-09 17:59:37.000000000 +0400
+++ linux-2.6.5-7.201-full/fs/ext3/namei.c	2006-08-09 17:59:37.000000000 +0400
@@ -1598,7 +1598,7 @@ static int ext3_delete_entry (handle_t *
 			      struct buffer_head * bh)
 {
 	struct ext3_dir_entry_2 * de, * pde;
-	int i;
+	int i, err;
 
 	i = 0;
 	pde = NULL;
@@ -1608,7 +1608,9 @@ static int ext3_delete_entry (handle_t *
 			return -EIO;
 		if (de == de_del)  {
 			BUFFER_TRACE(bh, "get_write_access");
-			ext3_journal_get_write_access(handle, bh);
+			err = ext3_journal_get_write_access(handle, bh);
+			if (err)
+				return err;
 			if (pde)
 				pde->rec_len =
 					cpu_to_le16(le16_to_cpu(pde->rec_len) +
Index: linux-2.6.5-7.201-full/fs/ext3/xattr.c
===================================================================
--- linux-2.6.5-7.201-full.orig/fs/ext3/xattr.c	2006-07-14 01:53:23.000000000 +0400
+++ linux-2.6.5-7.201-full/fs/ext3/xattr.c	2006-08-09 17:59:37.000000000 +0400
@@ -107,7 +107,7 @@ ext3_xattr_register(int name_index, stru
 {
 	int error = -EINVAL;
 
-	if (name_index > 0 && name_index <= EXT3_XATTR_INDEX_MAX) {
+	if (name_index > 0 && name_index < EXT3_XATTR_INDEX_MAX) {
 		write_lock(&ext3_handler_lock);
 		if (!ext3_xattr_handlers[name_index-1]) {
 			ext3_xattr_handlers[name_index-1] = handler;
Index: linux-2.6.5-7.201-full/fs/ext3/inode.c
===================================================================
--- linux-2.6.5-7.201-full.orig/fs/ext3/inode.c	2006-07-14 01:53:22.000000000 +0400
+++ linux-2.6.5-7.201-full/fs/ext3/inode.c	2006-08-22 12:35:28.000000000 +0400
@@ -1517,9 +1517,14 @@ out_stop:
 			if (end > inode->i_size) {
 				ei->i_disksize = end;
 				i_size_write(inode, end);
-				err = ext3_mark_inode_dirty(handle, inode);
-				if (!ret) 
-					ret = err;
+				/*
+				 * We're going to return a positive `ret'
+				 * here due to non-zero-length I/O, so there's
+				 * no way of reporting error returns from
+				 * ext3_mark_inode_dirty() to userspace.  So
+				 * ignore it.
+				 */
+				ext3_mark_inode_dirty(handle, inode);
 			}
 		}
 		err = ext3_journal_stop(handle);
@@ -1811,8 +1816,18 @@ ext3_clear_blocks(handle_t *handle, stru
 		ext3_mark_inode_dirty(handle, inode);
 		ext3_journal_test_restart(handle, inode);
 		if (bh) {
+			int err;
 			BUFFER_TRACE(bh, "retaking write access");
-			ext3_journal_get_write_access(handle, bh);
+			err = ext3_journal_get_write_access(handle, bh);
+			if (err) {
+				struct super_block *sb = inode->i_sb;
+				struct ext3_super_block *es = EXT3_SB(sb)->s_es;
+				printk (KERN_CRIT"EXT3-fs: can't continue truncate\n");
+				EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
+				es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
+				ext3_commit_super(sb, es, 1);
+				return;
+			}
 		}
 	}