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Date: Tue, 28 Jul 2020 17:10:28 +0800 From: luomeng <luomeng12@...wei.com> To: Jan Kara <jack@...e.cz>, Ted Tso <tytso@....edu> CC: <linux-ext4@...r.kernel.org>, Lukas Czerner <lczerner@...hat.com> Subject: Re: [PATCH 3/6] ext4: Check journal inode extents more carefully 在 2020/7/27 19:44, Jan Kara 写道: > -int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk, > +int ext4_inode_block_valid(struct inode *inode, ext4_fsblk_t start_blk, > unsigned int count) > { > struct ext4_system_blocks *system_blks; > @@ -344,8 +346,8 @@ int ext4_data_block_valid(struct ext4_sb_info *sbi, ext4_fsblk_t start_blk, > */ > rcu_read_lock(); > system_blks = rcu_dereference(sbi->system_blks); Because of a change in the function parameters,there is no 'sbi' declared. So there will be a compile error: fs/ext4/block_validity.c: In function ‘ext4_inode_block_valid’: fs/ext4/block_validity.c:345:32: error: ‘sbi’ undeclared (first use in this function) system_blks = rcu_dereference(sbi->system_blks); > - ret = ext4_data_block_valid_rcu(sbi, system_blks, start_blk, > - count); > + ret = ext4_data_block_valid_rcu(EXT4_SB(inode->i_sb), system_blks, > + start_blk, count, inode->i_ino); > rcu_read_unlock(); > return ret; > }
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