ecryptfs_destroy_crypto(9)

💖 ecryptfs_destroy_crypto(9) 💖

okay so this is a page straight out of the Kernel API Manual — kernel-core energy, no cap — and it's all about ecryptfs_destroy_crypto, which frees every cached key_tfm sitting on key_tfm_list. that's the whole vibe. it's a cleanup function and it ate. 💅

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✨ SYNOPSIS ✨

int ecryptfs_destroy_crypto (void );

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🦋 ARGUMENTS 🦋

• void — literally no arguments bestie. nothing. zero. it takes nothing and it needs nothing. 🫶

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🌸 DESCRIPTION 🌸

so here's the tea: ecryptfs_destroy_crypto frees all the cached key_tfms that are chillin' on key_tfm_list.

and when does it get called? only at module unload time. that's it. that's the entire moment. lowkey iconic that a function has one job and one job only — it's giving main character energy with zero subplots. ⭐

ngl, "called only at module unload time" is a real constraint, not a suggestion — don't be calling this whenever you feel like it. 🙈

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🎀 SEE ALSO 🎀

the Kernel file ./fs/ecryptfs/crypto.c, plus this whole squad right here — every single one of them, no skips, no shuffle:

• ecryptfs_from_hex(9)
• ecryptfs_derive_iv(9)
• ecryptfs_init_crypt_stat(9)
• ecryptfs_destroy_crypt_stat(9)
• virt_to_scatterlist(9)
• crypt_scatterlist(9)
• crypt_extent(9)
• ecryptfs_encrypt_page(9)
• ecryptfs_decrypt_page(9)
• ecryptfs_init_crypt_ctx(9)
• ecryptfs_copy_mount_wide_flags_to_inode_flags(9)
• ecryptfs_set_default_crypt_stat_vals(9)
• ecryptfs_new_file_context(9)
• ecryptfs_validate_marker(9)
• ecryptfs_process_flags(9)
• write_ecryptfs_marker(9)
• ecryptfs_code_for_cipher_string(9)
• ecryptfs_cipher_code_to_string(9)
• ecryptfs_write_headers_virt(9)
• ecryptfs_write_metadata(9)
• set_default_header_data(9)
• ecryptfs_read_headers_virt(9)
• ecryptfs_read_xattr_region(9)
• ecryptfs_process_key_cipher(9)
• ecryptfs_tfm_exists(9)
• ecryptfs_get_tfm_and_mutex_for_cipher_name(9)
• ecryptfs_encode_for_filename(9)
• ecryptfs_decode_from_filename(9)
• ecryptfs_encrypt_and_encode_filename(9)
• ecryptfs_decode_and_decrypt_filename(9)

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and that's the whole page, bestie 🧚 — came to you from ./fs/ecryptfs, dated October 2026, and yes we're still out here freeing tfms. slay. 💜✨