On Fri, Feb 12, 2021 at 12:59 PM Darrick J. Wong wrote:
>
> On Thu, Feb 11, 2021 at 08:53:47PM -0800, Darrick J. Wong wrote:
> > On Fri, Feb 12, 2021 at 12:44:05PM +0800, Nicolas Boichat wrote:
> > > copy_file_range (which calls generic_copy_file_checks) uses the
> > > inode file size to adjust th
On Thu, Feb 11, 2021 at 08:53:47PM -0800, Darrick J. Wong wrote:
> On Fri, Feb 12, 2021 at 12:44:05PM +0800, Nicolas Boichat wrote:
> > copy_file_range (which calls generic_copy_file_checks) uses the
> > inode file size to adjust the copy count parameter. This breaks
> > with special filesystems li
On Fri, Feb 12, 2021 at 12:44:05PM +0800, Nicolas Boichat wrote:
> copy_file_range (which calls generic_copy_file_checks) uses the
> inode file size to adjust the copy count parameter. This breaks
> with special filesystems like procfs/sysfs/debugfs/tracefs, where
> the file size appears to be zero
copy_file_range (which calls generic_copy_file_checks) uses the
inode file size to adjust the copy count parameter. This breaks
with special filesystems like procfs/sysfs/debugfs/tracefs, where
the file size appears to be zero, but content is actually returned
when a read operation is performed. Ot
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