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* sysdeps/unix/sysv/linux/Versions: Export sync_file_range with

Browse Source 
GLIBC_2.5.
	* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Remove
	LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT.
	Declare sync_file_range and splice.
	* sysdeps/unix/sysv/linux/ia64/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Add
	sync_file_range.
	* sysdeps/unix/sysv/linux/i386/sync_file_range.S: New file.
This commit is contained in:
Ulrich Drepper 2006-03-31 21:50:22 +00:00
parent 92d12cd75e
commit 1329b60176
12 changed files with 281 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
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@ -1,5 +1,20 @@
2006-03-31 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/Versions: Export sync_file_range with
GLIBC_2.5.
* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Remove
LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT.
Declare sync_file_range and splice.
* sysdeps/unix/sysv/linux/ia64/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/sh/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/i386/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Add
sync_file_range.
* sysdeps/unix/sysv/linux/i386/sync_file_range.S: New file.
* sysdeps/unix/sysv/linux/syscalls.list: Add splice syscall.
* sysdeps/unix/sysv/linux/Versions: Export splice with GLIBC_2.5
version.

2
sysdeps/unix/sysv/linux/Versions
View File

@ -124,7 +124,7 @@ libc {
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
GLIBC_2.5 {
splice;
splice; sync_file_range;
}
GLIBC_PRIVATE {
# functions used in other libraries

27
sysdeps/unix/sysv/linux/alpha/bits/fcntl.h
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@ -173,16 +173,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

27
sysdeps/unix/sysv/linux/i386/bits/fcntl.h
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@ -180,16 +180,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

72
sysdeps/unix/sysv/linux/i386/sync_file_range.S Normal file
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@ -0,0 +1,72 @@
/* Selective file content synch'ing.
Copyright (C) 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#define _ERRNO_H 1
#include <bits/errno.h>
.text
ENTRY (sync_file_range)
#ifdef __NR_sync_file_range
pushl %ebx
cfi_adjust_cfa_offset (4)
pushl %esi
cfi_adjust_cfa_offset (4)
pushl %edi
cfi_adjust_cfa_offset (4)
pushl %ebp
cfi_adjust_cfa_offset (4)
movl 20(%esp), %ebx
cfi_rel_offset (ebx, 12)
movl 24(%esp), %ecx
movl 28(%esp), %edx
movl 32(%esp), %esi
cfi_rel_offset (esi, 8)
movl 36(%esp), %edi
cfi_rel_offset (edi, 4)
movl 40(%esp), %ebp
cfi_rel_offset (ebp, 0)
movl $SYS_ify(sync_file_range), %eax
ENTER_KERNEL
popl %ebp
cfi_adjust_cfa_offset (-4)
cfi_restore (ebp)
popl %edi
cfi_adjust_cfa_offset (-4)
cfi_restore (edi)
popl %esi
cfi_adjust_cfa_offset (-4)
cfi_restore (esi)
popl %ebx
cfi_adjust_cfa_offset (-4)
cfi_restore (ebx)
cmpl $-4095, %eax
jae SYSCALL_ERROR_LABEL
L(pseudo_end):
ret
#else
movl $-ENOSYS, %eax
jmp SYSCALL_ERROR_LABEL
#endif
PSEUDO_END (sync_file_range)

27
sysdeps/unix/sysv/linux/ia64/bits/fcntl.h
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@ -174,16 +174,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

27
sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h
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@ -180,16 +180,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

27
sysdeps/unix/sysv/linux/s390/bits/fcntl.h
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@ -199,16 +199,37 @@ struct flock64
# endif
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

27
sysdeps/unix/sysv/linux/sh/bits/fcntl.h
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@ -180,16 +180,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

27
sysdeps/unix/sysv/linux/sparc/bits/fcntl.h
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@ -199,16 +199,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS

1
sysdeps/unix/sysv/linux/wordsize-64/syscalls.list
View File

@ -14,3 +14,4 @@ getrlimit - getrlimit i:ip __getrlimit getrlimit getrlimit64
setrlimit - setrlimit i:ip __setrlimit setrlimit setrlimit64
readahead - readahead i:iii __readahead readahead
sendfile - sendfile i:iipi sendfile sendfile64
sync_file_range - sync_file_range i:iiii sync_file_range

27
sysdeps/unix/sysv/linux/x86_64/bits/fcntl.h
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@ -194,16 +194,37 @@ struct flock64
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
/* Linux-specific operations for posix_fadvise. */
#ifdef __USE_GNU
# define LINUX_FADV_ASYNC_WRITE 32 /* Start writeout on range. */
# define LINUX_FADV_WRITE_WAIT 33 /* Wait upon writeout to range. */
# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
in the range before performing the
write. */
# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
the range after performing the
write. */
#endif
__BEGIN_DECLS
#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
/* Splice two files together. */
extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
#endif
__END_DECLS