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Remove all the llseek junk and just use regular old lseek. When DOLFS is

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enabled, regular lseek is transparently promoted to lseek64 anyways, rendering
the llseek stuff pointless.
 -Erik
This commit is contained in:
Eric Andersen 2003-07-14 19:03:14 +00:00
parent feb283a437
commit 341170b012
1 changed files with 6 additions and 110 deletions
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116
util-linux/fdisk.c
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@ -838,110 +838,6 @@ typedef struct {
#define SUN_SSWAP32(x) (sun_other_endian ? __swap32(x) \
: (uint32_t)(x))
/*
* llseek.c -- stub calling the llseek system call
*
* Copyright (C) 1994 Remy Card. This file may be redistributed
* under the terms of the GNU Public License.
*/
#ifdef __linux__
#ifdef HAVE_LLSEEK
#include <syscall.h>
#else /* HAVE_LLSEEK */
#if defined(__alpha__) || defined(__ia64__)
#define my_llseek lseek
#else
#include <asm/unistd.h> /* for __NR__llseek */
static int _llseek (unsigned int, unsigned long,
unsigned long, ext2_loff_t *, unsigned int);
#ifdef __NR__llseek
static _syscall5(int,_llseek,unsigned int,f_d,unsigned long,offset_high,
unsigned long, offset_low,ext2_loff_t *,result,
unsigned int, origin)
#else
/* no __NR__llseek on compilation machine - might give it explicitly */
static int _llseek (unsigned int f_d, unsigned long oh,
unsigned long ol, ext2_loff_t *result,
unsigned int origin) {
errno = ENOSYS;
return -1;
}
#endif
static ext2_loff_t my_llseek (unsigned int f_d, ext2_loff_t offset,
unsigned int origin)
{
ext2_loff_t result;
int retval;
retval = _llseek (f_d, ((unsigned long long) offset) >> 32,
((unsigned long long) offset) & 0xffffffff,
&result, origin);
return (retval == -1 ? (ext2_loff_t) retval : result);
}
#endif /* __alpha__ */
#endif /* HAVE_LLSEEK */
static ext2_loff_t ext2_llseek (unsigned int f_d, ext2_loff_t offset,
unsigned int origin)
{
ext2_loff_t result;
static int do_compat = 0;
if (!do_compat) {
result = my_llseek (f_d, offset, origin);
if (!(result == -1 && errno == ENOSYS))
return result;
/*
* Just in case this code runs on top of an old kernel
* which does not support the llseek system call
*/
do_compat = 1;
/*
* Now try ordinary lseek.
*/
}
if ((sizeof(off_t) >= sizeof(ext2_loff_t)) ||
(offset < ((ext2_loff_t) 1 << ((sizeof(off_t)*8) -1))))
return lseek(f_d, (off_t) offset, origin);
errno = EINVAL;
return -1;
}
#else /* !linux */
static ext2_loff_t ext2_llseek (unsigned int f_d, ext2_loff_t offset,
unsigned int origin)
{
if ((sizeof(off_t) < sizeof(ext2_loff_t)) &&
(offset >= ((ext2_loff_t) 1 << ((sizeof(off_t)*8) -1)))) {
errno = EINVAL;
return -1;
}
return lseek (f_d, (off_t) offset, origin);
}
#endif /* linux */
#ifdef CONFIG_FEATURE_OSF_LABEL
/*
Changes:
@ -1466,7 +1362,7 @@ xbsd_write_bootstrap (void)
sector = get_start_sect(xbsd_part);
#endif
if (ext2_llseek (fd, (ext2_loff_t) sector * SECTOR_SIZE, SEEK_SET) == -1)
if (lseek (fd, (ext2_loff_t) sector * SECTOR_SIZE, SEEK_SET) == -1)
fdisk_fatal (unable_to_seek);
if (BSD_BBSIZE != write (fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal (unable_to_write);
@ -1634,7 +1530,7 @@ xbsd_readlabel (struct partition *p, struct xbsd_disklabel *d)
sector = 0;
#endif
if (ext2_llseek (fd, (ext2_loff_t) sector * SECTOR_SIZE, SEEK_SET) == -1)
if (lseek (fd, (ext2_loff_t) sector * SECTOR_SIZE, SEEK_SET) == -1)
fdisk_fatal (unable_to_seek);
if (BSD_BBSIZE != read (fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal (unable_to_read);
@ -1680,12 +1576,12 @@ xbsd_writelabel (struct partition *p, struct xbsd_disklabel *d)
#if defined (__alpha__) && BSD_LABELSECTOR == 0
alpha_bootblock_checksum (disklabelbuffer);
if (ext2_llseek (fd, (ext2_loff_t) 0, SEEK_SET) == -1)
if (lseek (fd, (ext2_loff_t) 0, SEEK_SET) == -1)
fdisk_fatal (unable_to_seek);
if (BSD_BBSIZE != write (fd, disklabelbuffer, BSD_BBSIZE))
fdisk_fatal (unable_to_write);
#else
if (ext2_llseek (fd, (ext2_loff_t) sector * SECTOR_SIZE + BSD_LABELOFFSET,
if (lseek (fd, (ext2_loff_t) sector * SECTOR_SIZE + BSD_LABELOFFSET,
SEEK_SET) == -1)
fdisk_fatal (unable_to_seek);
if (sizeof (struct xbsd_disklabel) != write (fd, d, sizeof (struct xbsd_disklabel)))
@ -2120,7 +2016,7 @@ sgi_write_table(void)
*/
sgiinfo*info = fill_sgiinfo(); /* fills the block appropriately */
int infostartblock = SGI_SSWAP32( sgilabel->directory[0].vol_file_start );
if( ext2_llseek(fd, (ext2_loff_t)infostartblock*
if( lseek(fd, (ext2_loff_t)infostartblock*
SECTOR_SIZE, SEEK_SET) < 0 )
fdisk_fatal(unable_to_seek);
if( write(fd, info, SECTOR_SIZE) != SECTOR_SIZE )
@ -3517,7 +3413,7 @@ static void fdisk_fatal(enum failure why) {
static void
seek_sector(uint secno) {
ext2_loff_t offset = (ext2_loff_t) secno * sector_size;
if (ext2_llseek(fd, offset, SEEK_SET) == (ext2_loff_t) -1)
if (lseek(fd, offset, SEEK_SET) == (ext2_loff_t) -1)
fdisk_fatal(unable_to_seek);
}