From 4c5eface5d0e4eb7f77be346193c2850e7e3b983 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 1 May 2009 01:44:57 +0200 Subject: [PATCH] kill-the-BKL/reiserfs: release the write lock inside reiserfs_read_bitmap_block() reiserfs_read_bitmap_block() uses sb_bread() to read the bitmap block. This helper might sleep. Then, when the bkl was used, it was released at this point. We can then relax the write lock too here. [ Impact: release the reiserfs write lock when it is not needed ] Cc: Jeff Mahoney Cc: Chris Mason Cc: Alexander Beregalov Signed-off-by: Frederic Weisbecker --- fs/reiserfs/bitmap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c index 147033461b87..685495707181 100644 --- a/fs/reiserfs/bitmap.c +++ b/fs/reiserfs/bitmap.c @@ -1249,7 +1249,9 @@ struct buffer_head *reiserfs_read_bitmap_block(struct super_block *sb, else if (bitmap == 0) block = (REISERFS_DISK_OFFSET_IN_BYTES >> sb->s_blocksize_bits) + 1; + reiserfs_write_unlock(sb); bh = sb_bread(sb, block); + reiserfs_write_lock(sb); if (bh == NULL) reiserfs_warning(sb, "sh-2029: %s: bitmap block (#%u) " "reading failed", __func__, block);