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From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@01.org, Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
	Dan Carpenter <dan.carpenter@oracle.com>
Subject: [next:master 2131/2422] kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining?
Date: Wed, 27 Aug 2014 12:56:13 +0300	[thread overview]
Message-ID: <20140827095613.GN5100@mwanda> (raw)


tree:   git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   d05446ae2128064a4bb8f74c84f6901ffb5c94bc
commit: 802d335c0f7f1a1867bf59814c55970a71b10413 [2131/2422] prctl: PR_SET_MM -- introduce PR_SET_MM_MAP operation

kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining?

git remote add next git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git remote update next
git checkout 802d335c0f7f1a1867bf59814c55970a71b10413
vim +1888 kernel/sys.c

802d335c Cyrill Gorcunov 2014-08-26  1872  
802d335c Cyrill Gorcunov 2014-08-26  1873  	mm->start_code	= prctl_map.start_code;
802d335c Cyrill Gorcunov 2014-08-26  1874  	mm->end_code	= prctl_map.end_code;
802d335c Cyrill Gorcunov 2014-08-26  1875  	mm->start_data	= prctl_map.start_data;
802d335c Cyrill Gorcunov 2014-08-26  1876  	mm->end_data	= prctl_map.end_data;
802d335c Cyrill Gorcunov 2014-08-26  1877  	mm->start_brk	= prctl_map.start_brk;
802d335c Cyrill Gorcunov 2014-08-26  1878  	mm->brk		= prctl_map.brk;
802d335c Cyrill Gorcunov 2014-08-26  1879  	mm->start_stack	= prctl_map.start_stack;
802d335c Cyrill Gorcunov 2014-08-26  1880  	mm->arg_start	= prctl_map.arg_start;
802d335c Cyrill Gorcunov 2014-08-26  1881  	mm->arg_end	= prctl_map.arg_end;
802d335c Cyrill Gorcunov 2014-08-26  1882  	mm->env_start	= prctl_map.env_start;
802d335c Cyrill Gorcunov 2014-08-26  1883  	mm->env_end	= prctl_map.env_end;
802d335c Cyrill Gorcunov 2014-08-26  1884  
802d335c Cyrill Gorcunov 2014-08-26  1885  	error = 0;
802d335c Cyrill Gorcunov 2014-08-26  1886  out:
802d335c Cyrill Gorcunov 2014-08-26  1887  	up_read(&mm->mmap_sem);
802d335c Cyrill Gorcunov 2014-08-26 @1888  	return error;
802d335c Cyrill Gorcunov 2014-08-26  1889  }
802d335c Cyrill Gorcunov 2014-08-26  1890  #endif /* CONFIG_CHECKPOINT_RESTORE */
802d335c Cyrill Gorcunov 2014-08-26  1891  
028ee4be Cyrill Gorcunov 2012-01-12  1892  static int prctl_set_mm(int opt, unsigned long addr,
028ee4be Cyrill Gorcunov 2012-01-12  1893  			unsigned long arg4, unsigned long arg5)
028ee4be Cyrill Gorcunov 2012-01-12  1894  {
028ee4be Cyrill Gorcunov 2012-01-12  1895  	struct mm_struct *mm = current->mm;
fe8c7f5c Cyrill Gorcunov 2012-05-31  1896  	struct vm_area_struct *vma;

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             reply	other threads:[~2014-08-27  9:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-27  9:56 Dan Carpenter [this message]
2014-08-27 10:09 ` [next:master 2131/2422] kernel/sys.c:1888 prctl_set_mm_map() warn: maybe return -EFAULT instead of the bytes remaining? Cyrill Gorcunov
2014-08-27 10:24   ` Dan Carpenter
2014-08-27 10:28     ` Cyrill Gorcunov

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