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	The __NR_fstatfs64 syscall is supported on all architectures but
aarch64, mips64, riscv64, and x86_64.  And newer ABIs also uses
the new fstatfs64 interface (where the struct size is used as
first argument).
So the default implementation now uses:
  1. __NR_fstatfs64 for non-LFS call and handle overflow directly
     There is no need to handle __NR_fstatfs since all architectures
     that only support are LFS only.
  2. __NR_fstatfs if defined or __NR_fstatfs64 otherwise for LFS
     call.
Alpha is the only outlier, it is a 64-bit architecture which
provides non-LFS interface and only provides __NR_fstatfs64 on
newer kernels (5.1+).
Checked on x86_64-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
		
	
		
			
				
	
	
		
			31 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
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			31 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Get filesystem statistics.  Linux/alpha.
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|    Copyright (C) 2011-2021 Free Software Foundation, Inc.
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|    This file is part of the GNU C Library.
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| 
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|    The GNU C Library is free software; you can redistribute it and/or
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|    modify it under the terms of the GNU Lesser General Public
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|    License as published by the Free Software Foundation; either
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|    version 2.1 of the License, or (at your option) any later version.
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| 
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|    The GNU C Library is distributed in the hope that it will be useful,
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|    but WITHOUT ANY WARRANTY; without even the implied warranty of
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|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|    Lesser General Public License for more details.
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| 
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|    You should have received a copy of the GNU Lesser General Public
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|    License along with the GNU C Library.  If not, see
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|    <https://www.gnu.org/licenses/>.  */
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| 
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| #include <sys/statfs.h>
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| #include <kernel_stat.h>
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| #include <sysdep.h>
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| 
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| /* Return information about the filesystem on which FD resides.  */
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| int
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| __fstatfs (int fd, struct statfs *buf)
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| {
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|   return INLINE_SYSCALL_CALL (fstatfs, fd, buf);
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| }
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| libc_hidden_def (__fstatfs)
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| weak_alias (__fstatfs, fstatfs)
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