On Tue, 01 Feb 2011 11:46:50 +0000 Steven Whitehouse <swhiteho@xxxxxxxxxx> wrote: > On Wed, 2010-12-08 at 12:03 -0500, Josef Bacik wrote: > > Some filesystems don't deal well with being asked to map less than blocksize > > blocks (GFS2 for example). Since we are always mapping at least blocksize > > sections anyway, just make sure len is at least as big as a blocksize so we > > don't trip up any filesystems. Thanks, > > > > Signed-off-by: Josef Bacik <josef@xxxxxxxxxx> > > --- > > fs/ioctl.c | 7 +++++++ > > 1 files changed, 7 insertions(+), 0 deletions(-) > > > > diff --git a/fs/ioctl.c b/fs/ioctl.c > > index d6cc164..6b53c24 100644 > > --- a/fs/ioctl.c > > +++ b/fs/ioctl.c > > @@ -273,6 +273,13 @@ int __generic_block_fiemap(struct inode *inode, > > len = isize; > > } > > > > + /* > > + * Some filesystems can't deal with being asked to map less than > > + * blocksize, so make sure our len is at least block length. > > + */ > > + if (logical_to_blk(inode, len) == 0) > > + len = blk_to_logical(inode, 1); > > + > > start_blk = logical_to_blk(inode, start); > > last_blk = logical_to_blk(inode, start + len - 1); > > (top-posting repaired) > Hi, > > Is there any reason this cannot be sent to Linus now? > I sent it to viro a couple of weeks back and it was ignored. I don't know why this happens :( -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
