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Re: [PATCH 06/16] fs: fix kernel_write prototype

From Christoph Hellwig <hch@lst.de>
Newsgroups linux.kernel
Subject Re: [PATCH 06/16] fs: fix kernel_write prototype
Date 2017-09-01 12:50 +0200
Message-ID <ukRGp-2P1-1@gated-at.bofh.it> (permalink)
References <ukcMW-1sy-9@gated-at.bofh.it> <ukcMY-1sy-65@gated-at.bofh.it> <ukdfY-1Et-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wed, Aug 30, 2017 at 04:39:00PM +0100, Al Viro wrote:
> On Wed, Aug 30, 2017 at 04:59:57PM +0200, Christoph Hellwig wrote:
> 
> >  	for (prot = 0; prot < prot_length;) {
> >  		sector_t len = min_t(sector_t, bufsize, prot_length - prot);
> > -		ssize_t ret = kernel_write(prot_fd, buf, len, pos + prot);
> > +		ssize_t ret = kernel_write(prot_fd, buf, len, &pos);
> >  
> >  		if (ret != len) {
> >  			pr_err("vfs_write to prot file failed: %zd\n", ret);
> >  			return ret < 0 ? ret : -ENODEV;
> >  		}
> > -		prot += ret;
> >  	}
> 
> And that loop will terminate because of...?  IOW, the same bug class as in
> the kernel_read() patch.

Also fixed.

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Thread

switch in-kernel read/write calls to kernel_read/write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
    Re: [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:50 +0200
      Re: [PATCH 08/16] mm/nommu: switch do_mmap_private to kernel_read Christoph Hellwig <hch@lst.de> - 2017-09-01 12:50 +0200
  [PATCH 09/16] net/9p: switch p9_fd_read to kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 15/16] fs: unexport vfs_read and vfs_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
    Re: [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:40 +0200
      Re: [PATCH 02/16] autofs4: switch autofs4_write to __kernel_write Christoph Hellwig <hch@lst.de> - 2017-09-01 12:30 +0200
  [PATCH 13/16] lustre: switch to kernel_write Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 03/16] fs: move kernel_write to fs/read_write.c Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 04/16] fs: move kernel_read to fs/read_write.c Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
  [PATCH 06/16] fs: fix kernel_write prototype Christoph Hellwig <hch@lst.de> - 2017-08-30 17:10 +0200
    Re: [PATCH 06/16] fs: fix kernel_write prototype Al Viro <viro@ZenIV.linux.org.uk> - 2017-08-30 17:40 +0200
      Re: [PATCH 06/16] fs: fix kernel_write prototype Christoph Hellwig <hch@lst.de> - 2017-09-01 12:50 +0200

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