mirror of https://gitee.com/openkylin/linux.git
vfs: remove superflous sb == NULL checks
inode->i_sb is always set, not need to check for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -250,7 +250,7 @@ void clear_inode(struct inode *inode)
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BUG_ON(inode->i_state & I_CLEAR);
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wait_on_inode(inode);
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DQUOT_DROP(inode);
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if (inode->i_sb && inode->i_sb->s_op->clear_inode)
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if (inode->i_sb->s_op->clear_inode)
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inode->i_sb->s_op->clear_inode(inode);
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if (S_ISBLK(inode->i_mode) && inode->i_bdev)
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bd_forget(inode);
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@ -1040,7 +1040,7 @@ static void generic_forget_inode(struct inode *inode)
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if (!(inode->i_state & (I_DIRTY|I_LOCK)))
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list_move(&inode->i_list, &inode_unused);
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inodes_stat.nr_unused++;
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if (!sb || (sb->s_flags & MS_ACTIVE)) {
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if (sb->s_flags & MS_ACTIVE) {
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spin_unlock(&inode_lock);
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return;
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}
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@ -67,8 +67,6 @@ static int file_ioctl(struct file *filp, unsigned int cmd,
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return put_user(res, p);
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}
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case FIGETBSZ:
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if (inode->i_sb == NULL)
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return -EBADF;
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return put_user(inode->i_sb->s_blocksize, p);
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case FIONREAD:
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return put_user(i_size_read(inode) - filp->f_pos, p);
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