On Thu, Mar 10, 2011 at 01:25, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, Â9 Mar 2011 16:36:51 +0200 > Alexander Shishkin <virtuoso@xxxxxxxxx> wrote: > >> Changes since v3: >> Â- changed timerfd_settime() semantics (see below) >> Changes since v2: >> Â- replaced sysfs interface with a syscall >> Â- added sysctl/procfs handle to set a limit to the number of users >> Â- fixed issues pointed out by Greg. >> Changes since v1: >> Â- updated against 2.6.36-rc1, >> Â- added notification/filtering options, >> Â- added Documentation/ABI/sysfs-kernel-time-notify interface description. > It would be helpful to know if the identified users of this feature > actually find it useful and adequate. ÂI guess the most common > application is the 1,001 desktop clock widgets. ÂDo you have any > feedback from any of the owners of those? We want it for systemd, to provide cron-like functionality but without the need to stupidly wake up every minute and check the system time for possible jumps. It also sounds useful for a generic resume (after system suspend) notification for applications, which isn't really possible today. Kay -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html