diff options
| author | Eric Sandeen <sandeen@redhat.com> | 2020-04-27 11:00:42 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-05-04 09:03:15 -0700 |
| commit | ec43f6da31f100696b56e4781b62fb5367a40d71 (patch) | |
| tree | 101eb5a44b874864860f05057076fd5eb42d5f29 /fs/xfs/xfs_message.h | |
| parent | 166405f6b53b7d7eecb7939aa4a79bc7c1e0ed68 (diff) | |
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.h | 21 |
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); |