From 0e855ac8b103ef579052936b59fe7c599ac422a4 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 28 Jan 2008 23:58:26 -0500 Subject: ext4: Convert truncate_mutex to read write semaphore. We are currently taking the truncate_mutex for every read. This would have performance impact on large CPU configuration. Convert the lock to read write semaphore and take read lock when we are trying to read the file. Signed-off-by: Aneesh Kumar K.V --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ext4/super.c') diff --git a/fs/ext4/super.c b/fs/ext4/super.c index effd375ece80..c7305443e100 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -593,7 +593,7 @@ static void init_once(struct kmem_cache *cachep, void *foo) #ifdef CONFIG_EXT4DEV_FS_XATTR init_rwsem(&ei->xattr_sem); #endif - mutex_init(&ei->truncate_mutex); + init_rwsem(&ei->i_data_sem); inode_init_once(&ei->vfs_inode); } -- cgit v1.2.3