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| author | Chris Mason <chris.mason@oracle.com> | 2008-04-22 09:24:20 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:02 -0400 |
| commit | 409c6118d39cb2d8666bee3d61a1a9ae5bbd4f5d (patch) | |
| tree | 08ed979e2a7163b795659f366de00f6fee84ed28 | |
| parent | 38b669880df44cba24ab1b01715b87318d469217 (diff) | |
Btrfs: Set nodatasum on the inode when written by a nodatasum mount
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/file.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 3f5525f0834..5d537f26dc8 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -864,6 +864,14 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf, last_index = (pos + count) >> PAGE_CACHE_SHIFT; /* + * if this is a nodatasum mount, force summing off for the inode + * all the time. That way a later mount with summing on won't + * get confused + */ + if (btrfs_test_opt(root, NODATASUM)) + btrfs_set_flag(inode, NODATASUM); + + /* * there are lots of better ways to do this, but this code * makes sure the first and last page in the file range are * up to date and ready for cow |