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79c5fe6db8
The refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Kook <keescook@chromium.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: alsa-devel@alsa-project.org Cc: Andrew Morton <akpm@linux-foundation.org> Cc: David Windsor <dwindsor@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Hans Liljestrand <ishkamiel@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kees Kook <keescook@chromium.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matija Glavinic Pecotic <matija.glavinic-pecotic.ext@nokia.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1487691303-31858-2-git-send-email-elena.reshetova@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
20 lines
363 B
C
20 lines
363 B
C
#ifndef __CGROUP_H__
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#define __CGROUP_H__
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#include <linux/refcount.h>
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struct option;
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struct cgroup_sel {
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char *name;
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int fd;
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refcount_t refcnt;
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};
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extern int nr_cgroups; /* number of explicit cgroups defined */
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void close_cgroup(struct cgroup_sel *cgrp);
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int parse_cgroups(const struct option *opt, const char *str, int unset);
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#endif /* __CGROUP_H__ */
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