| commit | 388f295618e44a437fe6ea867da0497fddf384ce | |
| author | Dan Carpenter <dan.carpenter@oracle.com> | |
| Tue, 28 Aug 2018 13:01:12 +0000 (28 16:01 +0300) | ||
| committer | Dan Carpenter <dan.carpenter@oracle.com> | |
| Tue, 28 Aug 2018 13:01:12 +0000 (28 16:01 +0300) | ||
| tree | 97436c08e0bee1f88f8d816740f948c6ca9acdf8 | treesnapshot (tar.gz zip) |
| parent | 3a4fddaaacb0857c475df29859b5af1933463e04 | commitdiff |
nospec: turn off speculation at rmb(), smb_rmb() and barrier_nospec()
These barriers disable speculation.
My one concern is that maybe the barrier is called from inside a macro and
then this code would miss the barrier. Perhaps I should just look for the
fence instructions instead?
Reported-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
These barriers disable speculation.
My one concern is that maybe the barrier is called from inside a macro and
then this code would miss the barrier. Perhaps I should just look for the
fence instructions instead?
Reported-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
| check_nospec.c | diffblobblamehistory | |
| check_user_data2.c | diffblobblamehistory | |
| smatch.h | diffblobblamehistory |