VFS_TIMESTAMP(9)

💖 VFS_TIMESTAMP 💖

okay bestie, so this is a page from the Kernel Developer's Manual (section 9, we're in the big leagues now 👑) and it's literally just about getting the current time. iconic behaviour honestly.

✨ NAME ✨

vfs_timestamp — generate current timestamp

like, it makes a timestamp. that's the whole job. and it ate. 💅

🌸 SYNOPSIS 🌸

#include <sys/param.h>
#include <sys/vnode.h>

void
vfs_timestamp(struct timespec *tsp);

🦋 DESCRIPTION 🦋

so vfs_timestamp() fills in tsp with the current time. that's it, that's the function, no cap. 🫶

the precision though? that depends on the value of the vfs.timestamp_precision sysctl variable, and it's giving choose-your-own-adventure:

• 0 — seconds only, bestie. nanoseconds get zeroed out. gone. bye. 💀
• 1 — seconds and nanoseconds, accurate within 1/HZ.
• 2 — seconds and nanoseconds, truncated to microseconds.
• ≥3 — seconds and nanoseconds, maximum precision. go big or go home. 🔥

💜 AUTHORS 💜

this manual page was written by Chad David <davidc@acns.ab.ca>. thank you Chad, king behaviour, we appreciate you 🎀

and that's the whole vibe fr fr — Debian, November 21, 2001, mwah, love that for us ✨🧚💖