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Date: Thu, 9 Oct 2008 00:05:52 -0400 From: Theodore Ts'o <tytso@....edu> To: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Theodore Ts'o <tytso@....edu> Subject: [PATCH 34/42] jbd2: Fix buffer head leak when writing the commit block Also make sure the buffer heads are marked clean before submitting bh for writing. The previous code was marking the buffer head dirty, which would have forced an unneeded write (and seek) to the journal for no good reason. Signed-off-by: "Theodore Ts'o" <tytso@....edu> --- fs/jbd2/commit.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index e91f051..0d3814a 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -127,8 +127,7 @@ static int journal_submit_commit_record(journal_t *journal, JBUFFER_TRACE(descriptor, "submit commit block"); lock_buffer(bh); - get_bh(bh); - set_buffer_dirty(bh); + clear_buffer_dirty(bh); set_buffer_uptodate(bh); bh->b_end_io = journal_end_buffer_io_sync; @@ -158,7 +157,7 @@ static int journal_submit_commit_record(journal_t *journal, /* And try again, without the barrier */ lock_buffer(bh); set_buffer_uptodate(bh); - set_buffer_dirty(bh); + clear_buffer_dirty(bh); ret = submit_bh(WRITE, bh); } *cbh = bh; -- 1.5.6.1.205.ge2c7.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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