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| author | Andreas Gruenbacher | 2019-05-17 20:18:43 +0200 |
|---|---|---|
| committer | Andreas Gruenbacher | 2019-05-22 14:09:44 +0200 |
| commit | 5a5ec83d6ac974b12085cd99b196795f14079037 (patch) | |
| tree | ba7ac34e9dbe8e0795b3704e36d5bdb88dc01faa /fs/binfmt_em86.c | |
| parent | Linux 5.2-rc1 (diff) | |
| download | kernel-qcow2-linux-5a5ec83d6ac974b12085cd99b196795f14079037.tar.gz kernel-qcow2-linux-5a5ec83d6ac974b12085cd99b196795f14079037.tar.xz kernel-qcow2-linux-5a5ec83d6ac974b12085cd99b196795f14079037.zip | |
gfs2: Fix sign extension bug in gfs2_update_stats
Commit 4d207133e9c3 changed the types of the statistic values in struct
gfs2_lkstats from s64 to u64. Because of that, what should be a signed
value in gfs2_update_stats turned into an unsigned value. When shifted
right, we end up with a large positive value instead of a small negative
value, which results in an incorrect variance estimate.
Fixes: 4d207133e9c3 ("gfs2: Make statistics unsigned, suitable for use with do_div()")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: stable@vger.kernel.org # v4.4+
Diffstat (limited to 'fs/binfmt_em86.c')
0 files changed, 0 insertions, 0 deletions