linux-ext4 - [RFC][PATCH 9/10] Fix bugs in multi-block allocation and locality-group

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20070621105607t-sato@rifu.yk.jp.nec.com>
Date:	Thu, 21 Jun 2007 10:56:07 +0900
From:	"Takashi Sato" <t-sato@...jp.nec.com>
To:	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [RFC][PATCH 9/10] Fix bugs in multi-block allocation and locality-group

- Move lg_list to s_locality_dirty in ext4_lg_sync_single_group()
  to flush all of dirty inodes.
- Fix ext4_mb_new_blocks() to return err value when defrag failed.

Signed-off-by: Takashi Sato <t-sato@...jp.nec.com>
Signed-off-by: Akira Fujita <a-fujita@...jp.nec.com>
---
diff -X Online-Defrag_linux-2.6.19-rc6-git/Documentation/dontdiff -upNr linux-2.6.19-rc6-test3/fs/ext4/lg.c Online-Defrag_linux-2.6.19-rc6-git/fs/ext4/lg.c
--- linux-2.6.19-rc6-test3/fs/ext4/lg.c	2007-06-20 16:56:16.000000000 +0900
+++ Online-Defrag_linux-2.6.19-rc6-git/fs/ext4/lg.c	2007-06-18 14:21:54.000000000 +0900
@@ -389,6 +389,10 @@ int ext4_lg_sync_single_group(struct sup
 		cond_resched();
 		spin_lock(&inode_lock);
 		if (wbc->nr_to_write <= 0) {
+			if (!list_empty(&lg->lg_io)) {
+				set_bit(EXT4_LG_DIRTY, &lg->lg_flags);
+				list_move(&lg->lg_list, &sbi->s_locality_dirty);
+			}
 			rc = EXT4_STOP_WRITEBACK;
 			code = 6;
 			break;
diff -X Online-Defrag_linux-2.6.19-rc6-git/Documentation/dontdiff -upNr linux-2.6.19-rc6-test3/fs/ext4/mballoc.c Online-Defrag_linux-2.6.19-rc6-git/fs/ext4/mballoc.c
--- linux-2.6.19-rc6-test3/fs/ext4/mballoc.c	2007-06-20 16:58:22.000000000 +0900
+++ Online-Defrag_linux-2.6.19-rc6-git/fs/ext4/mballoc.c	2007-06-18 14:21:54.000000000 +0900
@@ -3732,8 +3732,10 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t
 		!(EXT4_I(ar->inode)->i_state & EXT4_STATE_BLOCKS_RESERVED)) {
 		reserved = ar->len;
 		err = ext4_reserve_blocks(sb, reserved);
-		if (err)
+		if (err) {
+			*errp = err;
 			return err;
+		}
 	}
 
 	if (!ext4_mb_use_preallocated(&ac)) {
-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html