Btrfs: subpage-blocksize: Rate limit scrub error message

btrfs/073 invokes scrub ioctl in a tight loop. In subpage-blocksize
scenario this results in a lot of "scrub: size assumption sectorsize !=
PAGE_SIZE " messages being printed on the console. To reduce the number
of such messages this commit uses btrfs_err_rl() instead of
btrfs_err().

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>

path: root/timer.h

#ifndef TIMER_H
#define TIMER_H

#include <sys/time.h>

extern void set_itimer_interval_value(struct itimerval *itimer, unsigned long sec,
				      unsigned long usec);

extern int get_user_hz(void);

#endif /* TIMER_H */