diff options
| author | Marco Elver <elver@google.com> | 2024-11-04 16:43:08 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-11-05 12:55:35 +0100 |
| commit | 93190bc35d6d4364a4d8c38ac8961dabecbff4ed (patch) | |
| tree | 6a48139a0d9385b879072145c5a94a5f0a69e837 /kernel/printk | |
| parent | 5c1806c41ce0a0110db5dd4c483cf2dc28b3ddf0 (diff) | |
seqlock, treewide: Switch to non-raw seqcount_latch interface
Switch all instrumentable users of the seqcount_latch interface over to
the non-raw interface.
Co-developed-by: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Signed-off-by: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241104161910.780003-5-elver@google.com
Diffstat (limited to 'kernel/printk')
| -rw-r--r-- | kernel/printk/printk.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index beb808f4c367..19911c8fa7b6 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -560,10 +560,11 @@ bool printk_percpu_data_ready(void) /* Must be called under syslog_lock. */ static void latched_seq_write(struct latched_seq *ls, u64 val) { - raw_write_seqcount_latch(&ls->latch); + write_seqcount_latch_begin(&ls->latch); ls->val[0] = val; - raw_write_seqcount_latch(&ls->latch); + write_seqcount_latch(&ls->latch); ls->val[1] = val; + write_seqcount_latch_end(&ls->latch); } /* Can be called from any context. */ @@ -574,10 +575,10 @@ static u64 latched_seq_read_nolock(struct latched_seq *ls) u64 val; do { - seq = raw_read_seqcount_latch(&ls->latch); + seq = read_seqcount_latch(&ls->latch); idx = seq & 0x1; val = ls->val[idx]; - } while (raw_read_seqcount_latch_retry(&ls->latch, seq)); + } while (read_seqcount_latch_retry(&ls->latch, seq)); return val; } |