Re: [PATCH] erofs: using switch-case while checking the inode type.

[Gao Xiang <gaoxiang25@huawei.com>]

Hi Greg,

On Fri, Aug 30, 2019 at 10:22:33PM +0800, Gao Xiang wrote:
> On Fri, Aug 30, 2019 at 07:59:48PM +0800, Gao Xiang wrote:
> > Hi Pratik,
> > 
> > The subject line could be better as '[PATCH v2] xxxxxx'...
> > 
> > On Fri, Aug 30, 2019 at 03:26:15PM +0530, Pratik Shinde wrote:
> > > while filling the linux inode, using switch-case statement to check
> > > the type of inode.
> > > switch-case statement looks more clean here.
> > > 
> > > Signed-off-by: Pratik Shinde <pratikshinde320@gmail.com>
> > 
> > I have no problem of this patch, and I will do a test and reply
> > you "Reviewed-by:" in hours (I'm doing another patchset to resolve
> > what Christoph suggested again)...
> 
> Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>

ping.. could you kindly merge this patch, the following patchset
has dependency on it...

Thanks,
Gao Xiang

> 
> Thanks,
> Gao Xiang
> 
> > 
> > Thanks,
> > Gao Xiang
> > 
> > > ---
> > >  fs/erofs/inode.c | 18 ++++++++++++------
> > >  1 file changed, 12 insertions(+), 6 deletions(-)
> > > 
> > > diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
> > > index 80f4fe9..6336cc1 100644
> > > --- a/fs/erofs/inode.c
> > > +++ b/fs/erofs/inode.c
> > > @@ -190,22 +190,28 @@ static int fill_inode(struct inode *inode, int isdir)
> > >  	err = read_inode(inode, data + ofs);
> > >  	if (!err) {
> > >  		/* setup the new inode */
> > > -		if (S_ISREG(inode->i_mode)) {
> > > +		switch (inode->i_mode & S_IFMT) {
> > > +		case S_IFREG:
> > >  			inode->i_op = &erofs_generic_iops;
> > >  			inode->i_fop = &generic_ro_fops;
> > > -		} else if (S_ISDIR(inode->i_mode)) {
> > > +			break;
> > > +		case S_IFDIR:
> > >  			inode->i_op = &erofs_dir_iops;
> > >  			inode->i_fop = &erofs_dir_fops;
> > > -		} else if (S_ISLNK(inode->i_mode)) {
> > > +			break;
> > > +		case S_IFLNK:
> > >  			/* by default, page_get_link is used for symlink */
> > >  			inode->i_op = &erofs_symlink_iops;
> > >  			inode_nohighmem(inode);
> > > -		} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
> > > -			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
> > > +			break;
> > > +		case S_IFCHR:
> > > +		case S_IFBLK:
> > > +		case S_IFIFO:
> > > +		case S_IFSOCK:
> > >  			inode->i_op = &erofs_generic_iops;
> > >  			init_special_inode(inode, inode->i_mode, inode->i_rdev);
> > >  			goto out_unlock;
> > > -		} else {
> > > +		default:
> > >  			err = -EFSCORRUPTED;
> > >  			goto out_unlock;
> > >  		}
> > > -- 
> > > 2.9.3
> > > 
> > > _______________________________________________
> > > devel mailing list
> > > devel@linuxdriverproject.org
> > > http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
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