| Message ID | 1414788814-9869-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 2d782aa..fd6501e3 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4656,8 +4656,12 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr) ext4_orphan_del(NULL, inode); goto err_out; } - } else + } else { + loff_t oldsize = inode->i_size; + i_size_write(inode, attr->ia_size); + pagecache_isize_extended(inode, oldsize, inode->i_size); + } /* * Blocks are going to be removed from the inode. Wait
This is a note to let you know that I have just added a patch titled ext4: fix mmap data corruption when blocksize < pagesize to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11.11. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From bb47b715bafad0dc7b879fab399f32a7d24f2600 Mon Sep 17 00:00:00 2001 From: Jan Kara <jack@suse.cz> Date: Wed, 1 Oct 2014 21:49:46 -0400 Subject: ext4: fix mmap data corruption when blocksize < pagesize commit d6320cbfc92910a3e5f10c42d98c231c98db4f60 upstream. Use truncate_isize_extended() when hole is being created in a file so that ->page_mkwrite() will get called for the partial tail page if it is mmaped (see the first patch in the series for details). Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- fs/ext4/inode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) -- 1.9.1