[Jfs-patches] [PATCH 6/6] JFS: Fix i_blocks accounting when allocation fails

[<sh...@au...>]

JFS: Fix i_blocks accounting when allocation fails

A failure in dbAlloc caused a directory's i_blocks to be incorrectly
incremented, causing jfs_fsck to find the inode to be corrupt.

Signed-off-by: Dave Kleikamp <sh...@au...>

---
commit 18190cc08d70a6ec8ef69f0f6ede021f7cb3f9b8
tree 5e1d35d247e5ddd549283e0d71bb7810c04b02f1
parent c2783f3a625b2aba943ef94623e277557a91a448
author Dave Kleikamp <sh...@au...> Tue, 26 Jul 2005 09:29:13 -0500
committer Dave Kleikamp <sh...@au...> Tue, 26 Jul 2005 09:29:13 -0500

 fs/jfs/jfs_dtree.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -381,9 +381,12 @@ static u32 add_index(tid_t tid, struct i
 		 * It's time to move the inline table to an external
 		 * page and begin to build the xtree
 		 */
-		if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage) ||
-		    dbAlloc(ip, 0, sbi->nbperpage, &xaddr))
-			goto clean_up;	/* No space */
+		if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
+			goto clean_up;
+		if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
+			DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+			goto clean_up;
+		}
 
 		/*
 		 * Save the table, we're going to overwrite it with the
@@ -397,13 +400,15 @@ static u32 add_index(tid_t tid, struct i
 		xtInitRoot(tid, ip);
 
 		/*
-		 * Allocate the first block & add it to the xtree
+		 * Add the first block to the xtree
 		 */
 		if (xtInsert(tid, ip, 0, 0, sbi->nbperpage, &xaddr, 0)) {
 			/* This really shouldn't fail */
 			jfs_warn("add_index: xtInsert failed!");
 			memcpy(&jfs_ip->i_dirtable, temp_table,
 			       sizeof (temp_table));
+			dbFree(ip, xaddr, sbi->nbperpage);
+			DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
 			goto clean_up;
 		}
 		ip->i_size = PSIZE;