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 <jeffm@xxxxxxxx> Cc: Chris Mason <chris.mason@xxxxxxxxxx> Cc: Alexander Beregalov <a.beregalov@xxxxxxxxx> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx> --- fs/reiserfs/bitmap.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c index 1470334..6854957 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); -- 1.6.2.3 -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
