From 0c304304feab8a576ed6ba6ec964255d00d2886e Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Mon, 25 May 2015 11:20:22 +0800 Subject: Btrfs: remove csum_bytes_left After commit 8407f553268a ("Btrfs: fix data corruption after fast fsync and writeback error"), during wait_ordered_extents(), we wait for ordered extent setting BTRFS_ORDERED_IO_DONE or BTRFS_ORDERED_IOERR, at which point we've already got checksum information, so we don't need to check (csum_bytes_left == 0) in the whole logging path. Signed-off-by: Liu Bo Signed-off-by: Chris Mason --- fs/btrfs/ordered-data.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'fs/btrfs/ordered-data.c') diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 760c4a5e096b..47966cb3d4b6 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -198,9 +198,6 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, entry->file_offset = file_offset; entry->start = start; entry->len = len; - if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM) && - !(type == BTRFS_ORDERED_NOCOW)) - entry->csum_bytes_left = disk_len; entry->disk_len = disk_len; entry->bytes_left = len; entry->inode = igrab(inode); @@ -286,10 +283,6 @@ void btrfs_add_ordered_sum(struct inode *inode, tree = &BTRFS_I(inode)->ordered_tree; spin_lock_irq(&tree->lock); list_add_tail(&sum->list, &entry->list); - WARN_ON(entry->csum_bytes_left < sum->len); - entry->csum_bytes_left -= sum->len; - if (entry->csum_bytes_left == 0) - wake_up(&entry->wait); spin_unlock_irq(&tree->lock); } -- cgit