From dff6efc326a4d5f305797d4a6bba14f374fdd633 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 19 Nov 2013 07:17:07 -0800 Subject: fs: fix iversion handling Currently notify_change directly updates i_version for size updates, which not only is counter to how all other fields are updated through struct iattr, but also breaks XFS, which need inode updates to happen under its own lock, and synchronized to the structure that gets written to the log. Remove the update in the common code, and it to btrfs and ext4, XFS already does a proper updaste internally and currently gets a double update with the existing code. IMHO this is 3.13 and -stable material and should go in through the XFS tree. Signed-off-by: Christoph Hellwig Reviewed-by: Andreas Dilger Acked-by: Jan Kara Reviewed-by: Dave Chinner Signed-off-by: Chris Mason Signed-off-by: Ben Myers --- fs/ext4/inode.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 075763474118..7f0e15ebacd9 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4598,6 +4598,10 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) if (attr->ia_size > sbi->s_bitmap_maxbytes) return -EFBIG; } + + if (IS_I_VERSION(inode) && attr->ia_size != inode->i_size) + inode_inc_iversion(inode); + if (S_ISREG(inode->i_mode) && (attr->ia_size < inode->i_size)) { if (ext4_should_order_data(inode)) { -- cgit v1.2.3