is_empty(9)

💅 is_empty(9) 💅

okay so bestie, welcome to the Kernel API Manual — this page is literally all about is_empty(9), and we're gonna get you comfy with it. no cap. 🫶

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✨ NAME ✨

is_empty — determine whether a buffer is empty (contains all 0xff). it's giving "is this thing empty or not" energy, and honestly? iconic. 💖

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🌸 SYNOPSIS 🌸

int is_empty (void *buf , int len );

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🎀 ARGUMENTS 🎀

• buf — buffer to clean 💅
• len — length of buffer ✨

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🦋 DESCRIPTION 🦋

this function returns 1 if the buffer is empty (contains all 0xff) — otherwise 0 is returned. periodt. 💀

like, that's the whole vibe: empty buffer = 1, not empty buffer = 0. simple, clean, slay. 🌈

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🔥 SEE ALSO 🔥

Kernel file ./fs/ubifs/recovery.c — and these related pages are all right here, bestie, every single one:

• first_non_ff(9)
• get_master_node(9)
• write_rcvrd_mst_node(9)
• ubifs_recover_master_node(9)
• ubifs_write_rcvrd_mst_node(9)
• is_last_write(9)
• clean_buf(9)
• no_more_nodes(9)
• fix_unclean_leb(9)
• drop_last_group(9)
• drop_last_node(9)
• ubifs_recover_leb(9)
• get_cs_sqnum(9)
• ubifs_recover_log_leb(9)
• recover_head(9)
• ubifs_recover_inl_heads(9)
• clean_an_unclean_leb(9)
• ubifs_clean_lebs(9)
• grab_empty_leb(9)
• ubifs_rcvry_gc_commit(9)
• struct size_entry(9)
• add_ino(9)
• find_ino(9)
• remove_ino(9)
• ubifs_destroy_size_tree(9)
• ubifs_recover_size_accum(9)
• fix_size_in_place(9)
• inode_fix_size(9)
• ubifs_recover_size(9)

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cute lil sign-off, bestie: this page comes from ./fs/ubifs, dated October 2026, and the footer title is is_empty(9) — make it fashion 💅✨🍓