d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add support for ratelimited printouts in the LinuxKPI.

Browse Source 
MFC after:		1 week
Sponsored by:		Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2017-03-23 10:48:10 +00:00
parent 16b46572fa
commit e9db3df254
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=315856
3 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/compat/linuxkpi/common/include/linux/device.h
View File

@ -144,6 +144,18 @@ show_class_attr_string(struct class *class,
#define dev_printk(lvl, dev, fmt, ...) \
device_printf((dev)->bsddev, fmt, ##__VA_ARGS__)
#define dev_err_ratelimited(dev, ...) do { \
static time_t __ratelimited; \
if (linux_ratelimited(&__ratelimited)) \
dev_err(dev, __VA_ARGS__); \
} while (0)
#define dev_warn_ratelimited(dev, ...) do { \
static time_t __ratelimited; \
if (linux_ratelimited(&__ratelimited)) \
dev_warn(dev, __VA_ARGS__); \
} while (0)
static inline void *
dev_get_drvdata(const struct device *dev)
{

7
sys/compat/linuxkpi/common/include/linux/kernel.h
View File

@ -224,6 +224,11 @@ scnprintf(char *buf, size_t size, const char *fmt, ...)
log_once(LOG_INFO, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_cont(fmt, ...) \
printk(KERN_CONT fmt, ##__VA_ARGS__)
#define pr_warn_ratelimited(...) do { \
static time_t __ratelimited; \
if (linux_ratelimited(&__ratelimited)) \
pr_warning(__VA_ARGS__); \
} while (0)
#ifndef WARN
#define WARN(condition, ...) ({ \
@ -331,4 +336,6 @@ abs64(int64_t x)
return (x < 0 ? -x : x);
}
extern bool linux_ratelimited(time_t *);
#endif /* _LINUX_KERNEL_H_ */

14
sys/compat/linuxkpi/common/src/linux_compat.c
View File

@ -1484,6 +1484,20 @@ __unregister_chrdev(unsigned int major, unsigned int baseminor,
bool linux_cpu_has_clflush;
#endif
bool
linux_ratelimited(time_t *ptime)
{
/* make sure uptime is not zero by OR'ing bit 31 */
time_t curr = time_uptime | (1U << 31);
/* check if one or more seconds have passed */
if (*ptime != curr) {
*ptime = curr;
return (1);
}
return (0);
}
static void
linux_compat_init(void *arg)
{