linux-kernel - [PATCH v2 0/2] Use memcpy_and_pad for jset_entry

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Message-ID: <20250327144956.1974622-1-nicolescu.roxana@protonmail.com>
Date: Thu, 27 Mar 2025 14:49:58 +0000
From: Roxana Nicolescu <nicolescu.roxana@...tonmail.com>
To: kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: mmpgouride@...il.com, skhan@...uxfoundation.org, linux-kernel-mentees@...ts.linux.dev
Subject: [PATCH v2 0/2] Use memcpy_and_pad for jset_entry_log->d init

This replaces the depracated usage of strncpy with memcpy_and_pad when
used for initializing the d buffer of the struct jset_entry_log.

The other 2 usage of memcpy were also replaced by memcpy_and_pad.

Changes since v1:
- since the dest buffer is not required to be NULL-terminated,
  memcpy_and_pad is used instead of strscpy. This adds zeros at the end
  of the buffer if there's extra room.
- the same mechanism was done before in both __bch2_fs_log_msg() and
bch2_trans_log_msg by zero-ing out the src buffer. The second patch
replaces that logic with memcpy_and_pad to provide uniformity.

Roxana Nicolescu (2):
  bcachefs: replace strncpy() with memcpy_and_pad in
    journal_transaction_name
  bcachefs: replace memcpy with memcpy_and_pad for jset_entry_log->d
    buff

 fs/bcachefs/btree_trans_commit.c | 3 ++-
 fs/bcachefs/btree_update.c       | 8 +++-----
 2 files changed, 5 insertions(+), 6 deletions(-)

-- 
2.34.1