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| author | Davidlohr Bueso <dave@stgolabs.net> | 2018-07-26 16:37:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-07-26 19:38:03 -0700 |
| commit | f075faa300acc4f6301e348acde0a4580ed5f77c (patch) | |
| tree | f2463b201b1785fd6af3cdd52bcf932267a85e92 /kernel/ksysfs.c | |
| parent | 15d36fecd0bdc7510b70a0e5ec6671140b3fce0c (diff) | |
| download | linux-f075faa300acc4f6301e348acde0a4580ed5f77c.tar.gz linux-f075faa300acc4f6301e348acde0a4580ed5f77c.tar.bz2 linux-f075faa300acc4f6301e348acde0a4580ed5f77c.zip | |
ipc/sem.c: prevent queue.status tearing in semop
In order for load/store tearing prevention to work, _all_ accesses to
the variable in question need to be done around READ and WRITE_ONCE()
macros. Ensure everyone does so for q->status variable for
semtimedop().
Link: http://lkml.kernel.org/r/20180717052654.676-1-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/ksysfs.c')
0 files changed, 0 insertions, 0 deletions