| commit | 139690d6c3c748b138525784dd6f0aa48cfcda1a | |
| author | Alexander Motin <mav@FreeBSD.org> | |
| Fri, 17 Sep 2021 17:17:18 +0000 (17 13:17 -0400) | ||
| committer | GitHub <noreply@github.com> | |
| Fri, 17 Sep 2021 17:17:18 +0000 (17 10:17 -0700) | ||
| tree | 3d52e0cf1646172952206dd10e61ca061042a484 | treesnapshot (tar.gz zip) |
| parent | 2a49ebbb4dd0799ffa4fcb4043220a0f992aa68c | commitdiff |
Really zero the zero page
While switching abd_zero_buf allocation KPI I've missed the fact
that kmem_zalloc() zeroed the allocation, while kmem_cache_alloc()
does not. Add explicit bzero() after it.
I don't think it should have caused real problems, but leaking one
memory page content all over the pool is not good.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #12569
While switching abd_zero_buf allocation KPI I've missed the fact
that kmem_zalloc() zeroed the allocation, while kmem_cache_alloc()
does not. Add explicit bzero() after it.
I don't think it should have caused real problems, but leaking one
memory page content all over the pool is not good.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #12569
| module/os/freebsd/zfs/abd_os.c | diffblobblamehistory |