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| author | Doug Ledford <dledford@redhat.com> | 2017-07-17 18:26:58 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-07-17 18:26:58 +0300 |
| commit | 3d886aa3be15439e05784ac1cbd4acc2f13c0048 (patch) | |
| tree | 5d7d5943c7f6697e640bdd684a560e9af7942300 /include/linux/errseq.h | |
| parent | b6ea01ba3fe9dcb5e08bbd9ed482845582a1e80b (diff) | |
| parent | 5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff) | |
| download | linux-3d886aa3be15439e05784ac1cbd4acc2f13c0048.tar.xz | |
Merge tag 'v4.13-rc1' into k.o/for-4.13-rc
Linux v4.13-rc1
Diffstat (limited to 'include/linux/errseq.h')
| -rw-r--r-- | include/linux/errseq.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/errseq.h b/include/linux/errseq.h new file mode 100644 index 000000000000..9e0d444ac88d --- /dev/null +++ b/include/linux/errseq.h @@ -0,0 +1,19 @@ +#ifndef _LINUX_ERRSEQ_H +#define _LINUX_ERRSEQ_H + +/* See lib/errseq.c for more info */ + +typedef u32 errseq_t; + +errseq_t __errseq_set(errseq_t *eseq, int err); +static inline void errseq_set(errseq_t *eseq, int err) +{ + /* Optimize for the common case of no error */ + if (unlikely(err)) + __errseq_set(eseq, err); +} + +errseq_t errseq_sample(errseq_t *eseq); +int errseq_check(errseq_t *eseq, errseq_t since); +int errseq_check_and_advance(errseq_t *eseq, errseq_t *since); +#endif |