summaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_message.h
diff options
context:
space:
mode:
authorEric Sandeen <sandeen@redhat.com>2020-04-27 11:00:42 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2020-05-04 09:03:15 -0700
commitec43f6da31f100696b56e4781b62fb5367a40d71 (patch)
tree101eb5a44b874864860f05057076fd5eb42d5f29 /fs/xfs/xfs_message.h
parent166405f6b53b7d7eecb7939aa4a79bc7c1e0ed68 (diff)
downloadlinux-ec43f6da31f100696b56e4781b62fb5367a40d71.tar.bz2
xfs: define printk_once variants for xfs messages
There are a couple places where we directly call printk_once() and one of them doesn't follow the standard xfs subsystem printk format as a result. #define printk_once variants to go with our existing printk_ratelimited #defines so we can do one-shot printks in a consistent manner. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_message.h')
-rw-r--r--fs/xfs/xfs_message.h21
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/xfs/xfs_message.h b/fs/xfs/xfs_message.h
index 0b05e10995a0..802a96190d22 100644
--- a/fs/xfs/xfs_message.h
+++ b/fs/xfs/xfs_message.h
@@ -31,15 +31,27 @@ void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
}
#endif
-#define xfs_printk_ratelimited(func, dev, fmt, ...) \
+#define xfs_printk_ratelimited(func, dev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
if (__ratelimit(&_rs)) \
- func(dev, fmt, ##__VA_ARGS__); \
+ func(dev, fmt, ##__VA_ARGS__); \
} while (0)
+#define xfs_printk_once(func, dev, fmt, ...) \
+({ \
+ static bool __section(.data.once) __print_once; \
+ bool __ret_print_once = !__print_once; \
+ \
+ if (!__print_once) { \
+ __print_once = true; \
+ func(dev, fmt, ##__VA_ARGS__); \
+ } \
+ unlikely(__ret_print_once); \
+})
+
#define xfs_emerg_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_emerg, dev, fmt, ##__VA_ARGS__)
#define xfs_alert_ratelimited(dev, fmt, ...) \
@@ -57,6 +69,11 @@ do { \
#define xfs_debug_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_debug, dev, fmt, ##__VA_ARGS__)
+#define xfs_warn_once(dev, fmt, ...) \
+ xfs_printk_once(xfs_warn, dev, fmt, ##__VA_ARGS__)
+#define xfs_notice_once(dev, fmt, ...) \
+ xfs_printk_once(xfs_notice, dev, fmt, ##__VA_ARGS__)
+
void assfail(struct xfs_mount *mp, char *expr, char *f, int l);
void asswarn(struct xfs_mount *mp, char *expr, char *f, int l);