https://github.com/torvalds/linux
Revision a229cf67ab851a6e92395f37ed141d065176575a authored by Linus Torvalds on 20 September 2023, 18:03:45 UTC, committed by Linus Torvalds on 20 September 2023, 18:03:45 UTC
Pull btrfs fixes from David Sterba: "A few more followup fixes to the directory listing. People have noticed different behaviour compared to other filesystems after changes in 6.5. This is now unified to more "logical" and expected behaviour while still within POSIX. And a few more fixes for stable. - change behaviour of readdir()/rewinddir() when new directory entries are created after opendir(), properly tracking the last entry - fix race in readdir when multiple threads can set the last entry index for a directory Additionally: - use exclusive lock when direct io might need to drop privs and call notify_change() - don't clear uptodate bit on page after an error, this may lead to a deadlock in subpage mode - fix waiting pattern when multiple readers block on Merkle tree data, switch to folios" * tag 'for-6.6-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: fix race between reading a directory and adding entries to it btrfs: refresh dir last index during a rewinddir(3) call btrfs: set last dir index to the current last index when opening dir btrfs: don't clear uptodate on write errors btrfs: file_remove_privs needs an exclusive lock in direct io write btrfs: convert btrfs_read_merkle_tree_page() to use a folio
Tip revision: a229cf67ab851a6e92395f37ed141d065176575a authored by Linus Torvalds on 20 September 2023, 18:03:45 UTC
Merge tag 'for-6.6-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Merge tag 'for-6.6-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Tip revision: a229cf6
aegis.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* AEGIS common definitions
*
* Copyright (c) 2018 Ondrej Mosnacek <omosnacek@gmail.com>
* Copyright (c) 2018 Red Hat, Inc. All rights reserved.
*/
#ifndef _CRYPTO_AEGIS_H
#define _CRYPTO_AEGIS_H
#include <crypto/aes.h>
#include <linux/bitops.h>
#include <linux/types.h>
#define AEGIS_BLOCK_SIZE 16
union aegis_block {
__le64 words64[AEGIS_BLOCK_SIZE / sizeof(__le64)];
__le32 words32[AEGIS_BLOCK_SIZE / sizeof(__le32)];
u8 bytes[AEGIS_BLOCK_SIZE];
};
struct aegis_state;
extern int aegis128_have_aes_insn;
#define AEGIS_BLOCK_ALIGN (__alignof__(union aegis_block))
#define AEGIS_ALIGNED(p) IS_ALIGNED((uintptr_t)p, AEGIS_BLOCK_ALIGN)
bool crypto_aegis128_have_simd(void);
void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg);
void crypto_aegis128_init_simd(struct aegis_state *state,
const union aegis_block *key,
const u8 *iv);
void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst,
const u8 *src, unsigned int size);
void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst,
const u8 *src, unsigned int size);
int crypto_aegis128_final_simd(struct aegis_state *state,
union aegis_block *tag_xor,
unsigned int assoclen,
unsigned int cryptlen,
unsigned int authsize);
static __always_inline void crypto_aegis_block_xor(union aegis_block *dst,
const union aegis_block *src)
{
dst->words64[0] ^= src->words64[0];
dst->words64[1] ^= src->words64[1];
}
static __always_inline void crypto_aegis_block_and(union aegis_block *dst,
const union aegis_block *src)
{
dst->words64[0] &= src->words64[0];
dst->words64[1] &= src->words64[1];
}
static __always_inline void crypto_aegis_aesenc(union aegis_block *dst,
const union aegis_block *src,
const union aegis_block *key)
{
const u8 *s = src->bytes;
const u32 *t = crypto_ft_tab[0];
u32 d0, d1, d2, d3;
d0 = t[s[ 0]] ^ rol32(t[s[ 5]], 8) ^ rol32(t[s[10]], 16) ^ rol32(t[s[15]], 24);
d1 = t[s[ 4]] ^ rol32(t[s[ 9]], 8) ^ rol32(t[s[14]], 16) ^ rol32(t[s[ 3]], 24);
d2 = t[s[ 8]] ^ rol32(t[s[13]], 8) ^ rol32(t[s[ 2]], 16) ^ rol32(t[s[ 7]], 24);
d3 = t[s[12]] ^ rol32(t[s[ 1]], 8) ^ rol32(t[s[ 6]], 16) ^ rol32(t[s[11]], 24);
dst->words32[0] = cpu_to_le32(d0) ^ key->words32[0];
dst->words32[1] = cpu_to_le32(d1) ^ key->words32[1];
dst->words32[2] = cpu_to_le32(d2) ^ key->words32[2];
dst->words32[3] = cpu_to_le32(d3) ^ key->words32[3];
}
#endif /* _CRYPTO_AEGIS_H */
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