Unverified Commit 5ab90b62 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!4852 [sync] PR-4847: btrfs: mainline backport 

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/4847 
 
PR sync from: Yifan Qiao <qiaoyifan4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/QCKFE6NBKTNELHGMHFSCSUAWYPZHSD3S/ 
Filipe Manana (2):
  btrfs: do not start and wait for delalloc on snapshot roots on
    transaction commit
  btrfs: fix deadlock when cloning inline extents and using qgroups


-- 
2.39.2
 
https://gitee.com/src-openeuler/kernel/issues/I94K22 
 
Link:https://gitee.com/openeuler/kernel/pulls/4852

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents c18ce060 f385b57a

fs/btrfs/ctree.h

+1 −1
Original line number Diff line number Diff line
@@ -3008,7 +3008,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, 
			       struct inode *inode, u64 new_size,

			       u32 min_type);



int btrfs_start_delalloc_snapshot(struct btrfs_root *root);

int btrfs_start_delalloc_snapshot(struct btrfs_root *root, bool in_reclaim_context);

int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, u64 nr,

			       bool in_reclaim_context);

int btrfs_set_extent_delalloc(struct btrfs_inode *inode, u64 start, u64 end,

fs/btrfs/inode.c

+2 −2
Original line number Diff line number Diff line
@@ -9526,7 +9526,7 @@ static int start_delalloc_inodes(struct btrfs_root *root, 
	return ret;

}



int btrfs_start_delalloc_snapshot(struct btrfs_root *root)

int btrfs_start_delalloc_snapshot(struct btrfs_root *root, bool in_reclaim_context)

{

	struct writeback_control wbc = {

		.nr_to_write = LONG_MAX,
@@ -9539,7 +9539,7 @@ int btrfs_start_delalloc_snapshot(struct btrfs_root *root) 
	if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))

		return -EROFS;



	return start_delalloc_inodes(root, &wbc, true, false);

	return start_delalloc_inodes(root, &wbc, true, in_reclaim_context);

}



int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, u64 nr,

fs/btrfs/ioctl.c

+1 −1
Original line number Diff line number Diff line
@@ -1030,7 +1030,7 @@ static noinline int btrfs_mksnapshot(const struct path *parent, 
	 */

	btrfs_drew_read_lock(&root->snapshot_lock);



	ret = btrfs_start_delalloc_snapshot(root);

	ret = btrfs_start_delalloc_snapshot(root, false);

	if (ret)

		goto out;

fs/btrfs/qgroup.c

+1 −1
Original line number Diff line number Diff line
@@ -3665,7 +3665,7 @@ static int try_flush_qgroup(struct btrfs_root *root) 
		return 0;

	}



	ret = btrfs_start_delalloc_snapshot(root);

	ret = btrfs_start_delalloc_snapshot(root, true);

	if (ret < 0)

		goto out;

	btrfs_wait_ordered_extents(root, U64_MAX, 0, (u64)-1);

fs/btrfs/send.c

+2 −2
Original line number Diff line number Diff line
@@ -7174,7 +7174,7 @@ static int flush_delalloc_roots(struct send_ctx *sctx) 
	int i;



	if (root) {

		ret = btrfs_start_delalloc_snapshot(root);

		ret = btrfs_start_delalloc_snapshot(root, false);

		if (ret)

			return ret;

		btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);
@@ -7182,7 +7182,7 @@ static int flush_delalloc_roots(struct send_ctx *sctx) 


	for (i = 0; i < sctx->clone_roots_cnt; i++) {

		root = sctx->clone_roots[i].root;

		ret = btrfs_start_delalloc_snapshot(root);

		ret = btrfs_start_delalloc_snapshot(root, false);

		if (ret)

			return ret;

		btrfs_wait_ordered_extents(root, U64_MAX, 0, U64_MAX);