__nfsd_file_cache_purge(9)

💅 __nfsd_file_cache_purge(9) 💅

okay so this page is from the Kernel API Manual, and we're talking about __nfsd_file_cache_purge — yes bestie, we're doing kernel cache cleanup and it's lowkey iconic 🫶

✨ NAME ✨

__nfsd_file_cache_purge — clean out the cache for shutdown 💖

🌸 SYNOPSIS 🌸

void __nfsd_file_cache_purge (struct net *net );

🎀 ARGUMENTS 🎀

• net — the net-namespace whose cache we're shutting down, and yeah it may be NULL 🌀

💖 DESCRIPTION 💖

okay so __nfsd_file_cache_purge literally walks the nfsd_file cache and closes out any entries that match net ✨ if net is NULL, then it closes out everything — the whole cache, no cap 💀

this gets called when an nfsd instance is being shut down, and when the exports table is flushed 👑 so it's very much the cleanup main character.

🦋 SEE ALSO 🦋

the kernel file is ./fs/nfsd/filecache.c, and here are all the related besties:

• nfsd_file_check_write_error(9)
• nfsd_file_put(9)
• nfsd_file_put_local(9)
• nfsd_file_file(9)
• nfsd_file_dispose_list_delayed(9)
• nfsd_file_net_dispose(9)
• nfsd_file_lru_cb(9)
• nfsd_file_cond_queue(9)
• nfsd_file_queue_for_close(9)
• nfsd_file_close_inode(9)
• nfsd_file_close_inode_sync(9)
• nfsd_file_close_export(9)
• nfsd_file_cache_purge(9)
• nfsd_file_is_cached(9)
• nfsd_file_acquire_gc(9)
• nfsd_file_acquire(9)
• nfsd_file_acquire_local(9)
• nfsd_file_acquire_opened(9)
• nfsd_file_acquire_dir(9)
• nfsd_fsnotify_recalc_mask(9)

cute sign-off tea ☕: this page came from ./fs/nfsd, dated October 2026, and the manual entry is __nfsd_file_cache_purge(9) — periodt 💅