netmem_is_pfmemalloc(9)

okay so this is the netmem_is_pfmemalloc(9) page from the Kernel API Manual, and bestie, it’s a tiny one — let’s go. 💖

✨ NAME ✨

netmem_is_pfmemalloc — check if @netmem was allocated under memory pressure

🎀 SYNOPSIS 🎀

bool netmem_is_pfmemalloc (netmem_ref netmem );

🦋 ARGUMENTS 🦋

• netmem — the netmem reference you want to check, bestie. 👀

💜 RETURN 💜

It gives you true when the netmem is page-backed and the page was allocated under memory pressure. Otherwise? false, periodt. 💅

🌈 SEE ALSO 🌈

The kernel file to know is ./include/net/netmem.h, and these are the linked besties:

• netmem_ref(9)
• __netmem_to_page(9)
• virt_to_netmem(9)
• __netmem_to_nmdesc(9)
• __netmem_get_pp(9)
• __netmem_address(9)

okay bye, drink water, and remember: source/version is ./include/net, the date is October 2026, and netmem_is_pfmemalloc(9) is the main character. 💅✨🫶