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Date: Thu, 25 Aug 2022 09:21:19 +0200 From: Greg KH <gregkh@...uxfoundation.org> To: Muhammad Usama Anjum <usama.anjum@...labora.com> Cc: Jonathan Corbet <corbet@....net>, Alexander Viro <viro@...iv.linux.org.uk>, Andrew Morton <akpm@...ux-foundation.org>, Shuah Khan <shuah@...nel.org>, "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>, "open list:PROC FILESYSTEM" <linux-fsdevel@...r.kernel.org>, "open list:MEMORY MANAGEMENT" <linux-mm@...ck.org>, "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>, kernel@...labora.com Subject: Re: [PATCH v2 2/4] fs/proc/task_mmu: Implement IOCTL to get and clear soft dirty PTE bit On Thu, Aug 25, 2022 at 12:09:24PM +0500, Muhammad Usama Anjum wrote: > diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h > index b7b56871029c..a7e48ba9457b 100644 > --- a/include/uapi/linux/fs.h > +++ b/include/uapi/linux/fs.h > @@ -305,4 +305,17 @@ typedef int __bitwise __kernel_rwf_t; > #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\ > RWF_APPEND) > > +struct pagemap_sd_args { > + void __user *start; > + int len; "int" is not a valid type to cross the user/kernel boundry, sorry. Please be explicit here (__u64? __u32?) > + loff_t __user *vec; > + int vec_len; > + int flags; Same with these. thanks, greg k-h
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