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Subject[PATCH] fs:ext3: remove lock_buffer in bclean() and setup_new_group_blocks
Date
it's not necessary to lock the buffers because no one touches them
beyond the file system.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
---
fs/ext3/resize.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 0f814f3..f76fcd6 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -122,10 +122,8 @@ static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
brelse(bh);
bh = ERR_PTR(err);
} else {
- lock_buffer(bh);
memset(bh->b_data, 0, sb->s_blocksize);
set_buffer_uptodate(bh);
- unlock_buffer(bh);
}

return bh;
@@ -242,10 +240,8 @@ static int setup_new_group_blocks(struct super_block *sb,
brelse(gdb);
goto exit_bh;
}
- lock_buffer(gdb);
memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size);
set_buffer_uptodate(gdb);
- unlock_buffer(gdb);
err = ext3_journal_dirty_metadata(handle, gdb);
if (err) {
brelse(gdb);
--
1.7.4.5


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