From 736603ab297506f4396cb5af592004499950fcfd Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Fri, 11 Jul 2008 19:27:31 -0400 Subject: [PATCH] jbd2: Add commit time into the commit block Carlo Wood has demonstrated that it's possible to recover deleted files from the journal. Something that will make this easier is if we can put the time of the commit into commit block. Signed-off-by: "Theodore Ts'o" --- fs/jbd2/commit.c | 3 +++ include/linux/jbd2.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index a2ed72f7cee..92b6ac3df8a 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -112,6 +112,7 @@ static int journal_submit_commit_record(journal_t *journal, struct buffer_head *bh; int ret; int barrier_done = 0; + struct timespec now = current_kernel_time(); if (is_journal_aborted(journal)) return 0; @@ -126,6 +127,8 @@ static int journal_submit_commit_record(journal_t *journal, tmp->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER); tmp->h_blocktype = cpu_to_be32(JBD2_COMMIT_BLOCK); tmp->h_sequence = cpu_to_be32(commit_transaction->t_tid); + tmp->h_commit_sec = cpu_to_be64(now.tv_sec); + tmp->h_commit_nsec = cpu_to_be32(now.tv_nsec); if (JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM)) { diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index d147f0f9036..ec9cadf5822 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -168,6 +168,8 @@ struct commit_header { unsigned char h_chksum_size; unsigned char h_padding[2]; __be32 h_chksum[JBD2_CHECKSUM_BYTES]; + __be64 h_commit_sec; + __be32 h_commit_nsec; }; /* -- 2.41.0