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authorOleg Nesterov2012-09-30 21:12:44 +0200
committerOleg Nesterov2012-10-07 21:19:43 +0200
commit71434f2fcba5c22d6e0d51878ba8e241a5dea5fb (patch)
tree0a61c5a75390a4eb39f018cc39cf8f40b0103058 /lib/ratelimit.c
parent4710f05fd146d4739e57a8832a3abc5bd3bf0997 (diff)
uprobes: Fix the racy uprobe->flags manipulation
Multiple threads can manipulate uprobe->flags, this is obviously unsafe. For example mmap can set UPROBE_COPY_INSN while register tries to set UPROBE_RUN_HANDLER, the latter can also race with can_skip_sstep() which clears UPROBE_SKIP_SSTEP. Change this code to use bitops. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Diffstat (limited to 'lib/ratelimit.c')
0 files changed, 0 insertions, 0 deletions