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authorEric Sandeen <sandeen@redhat.com>2009-12-14 22:01:05 +0300
committerJan Kara <jack@suse.cz>2009-12-23 15:44:12 +0300
commit96d2a495c25d525873529b736cdb63ad502b101c (patch)
tree7ceb418c1e26e682cc0c43d47efe4eb2cc639de9 /include/linux/ext3_fs_sb.h
parentb8a052d01669977f224255b0f9f2737018171ddb (diff)
downloadlinux-96d2a495c25d525873529b736cdb63ad502b101c.tar.xz
ext3: Replace lock/unlock_super() with an explicit lock for resizing
Use a separate lock to protect s_groups_count and the other block group descriptors which get changed via an on-line resize operation, so we can stop overloading the use of lock_super(). Port of ext4 commit 32ed5058ce90024efcd811254b4b1de0468099df by Theodore Ts'o <tytso@mit.edu>. CC: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/linux/ext3_fs_sb.h')
-rw-r--r--include/linux/ext3_fs_sb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ext3_fs_sb.h b/include/linux/ext3_fs_sb.h
index dd61d83026a0..258088ab3c6b 100644
--- a/include/linux/ext3_fs_sb.h
+++ b/include/linux/ext3_fs_sb.h
@@ -73,6 +73,7 @@ struct ext3_sb_info {
struct journal_s * s_journal;
struct list_head s_orphan;
struct mutex s_orphan_lock;
+ struct mutex s_resize_lock;
unsigned long s_commit_interval;
struct block_device *journal_bdev;
#ifdef CONFIG_JBD_DEBUG