Qu Wenruo wrote on Tue, Apr 18, 2023 at 10:04:56AM +0800:
> > This is a theorical fix only and hasn't been tested on a file that
> > actually runs this code path.
>
> IIRC there is a memset() at the very beginning of btrfs_file_read() to set
> the whole dest memory to zero.
Right, sorry.
I'll
From: Dominique Martinet
btfs_file_read's truncate path has a comment noting '>0 means no extent'
and bailing out immediately, but the buffer has not been written so
probably needs zeroing out.
This is a theorical fix only and hasn't been tested on a file that
actually runs this code path.
On 2023/4/18 09:17, Dominique Martinet wrote:
From: Dominique Martinet
btfs_file_read's truncate path has a comment noting '>0 means no extent'
and bailing out immediately, but the buffer has not been written so
probably needs zeroing out.
This is a theorical fix only and hasn't been
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