btrfs: clear __GFP_FS flag in the space cache inode (adae52b9) · Commits · 戴 / test

the object id of the space cache inode's key is allocated from the relative root, just like the regular file. So we can't identify space cache inode by checking the object id of the inode's key, and we have to clear __GFP_FS flag at the time we look up the space cache inode. Signed-off-by:

Miao Xie <miaox@cn.fujitsu.com> Signed-off-by:

Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by:

Chris Mason <chris.mason@oracle.com>

fs/btrfs/free-space-cache.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -81,6 +81,8 @@ struct inode lookup_free_space_inode(struct btrfs_root root,
		return ERR_PTR(-ENOENT);
		}

		inode->i_mapping->flags &= ~__GFP_FS;

		spin_lock(&block_group->lock);
		if (!root->fs_info->closing) {
		block_group->inode = igrab(inode);

fs/btrfs/inode.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -2535,8 +2535,6 @@ static void btrfs_read_locked_inode(struct inode *inode)
		BTRFS_I(inode)->flags = btrfs_inode_flags(leaf, inode_item);

		alloc_group_block = btrfs_inode_block_group(leaf, inode_item);
		if (location.objectid == BTRFS_FREE_SPACE_OBJECTID)
		inode->i_mapping->flags &= ~__GFP_FS;

		/*
		* try to precache a NULL acl entry for files that don't have

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