mirror_zfs/module/os/freebsd
Richard Yao ccec88f11a
FreeBSD: Fix integer conversion for vnlru_free{,_vfsops}()
When reviewing #13875, I noticed that our FreeBSD code has an issue
where it converts from `int64_t` to `int` when calling
`vnlru_free{,_vfsops}()`. The result is that if the int64_t is `1 <<
36`, the int will be 0, since the low bits are 0. Even when some low
bits are set, a value such as `((1 << 36) + 1)` would truncate to 1,
which is wrong.

There is protection against this on 32-bit platforms, but on 64-bit
platforms, there is no check to protect us, so we add a check.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13882
2022-09-14 12:51:55 -07:00
..
spl Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs FreeBSD: Fix integer conversion for vnlru_free{,_vfsops}() 2022-09-14 12:51:55 -07:00