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alpha: implement various OSF/1 stat syscalls
This implements OSF/1 versions of stat, lstat, fstat, statfs64, and fstatfs64 syscalls. Signed-off-by: Mans Rullgard <mans@mansr.com> Signed-off-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Mans Rullgard
Matt Turner
parent
50744dee01
commit
7a8bb98ca9
@ -203,6 +203,12 @@
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#define __NR_osf_security 222 /* not implemented */
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#define __NR_osf_kloadcall 223 /* not implemented */
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#define __NR_osf_stat 224
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#define __NR_osf_lstat 225
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#define __NR_osf_fstat 226
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#define __NR_osf_statfs64 227
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#define __NR_osf_fstatfs64 228
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#define __NR_getpgid 233
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#define __NR_getsid 234
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#define __NR_sigaltstack 235
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@ -191,6 +191,39 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len,
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return ret;
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}
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struct osf_stat {
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int st_dev;
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int st_pad1;
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unsigned st_mode;
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unsigned short st_nlink;
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short st_nlink_reserved;
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unsigned st_uid;
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unsigned st_gid;
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int st_rdev;
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int st_ldev;
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long st_size;
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int st_pad2;
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int st_uatime;
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int st_pad3;
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int st_umtime;
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int st_pad4;
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int st_uctime;
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int st_pad5;
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int st_pad6;
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unsigned st_flags;
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unsigned st_gen;
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long st_spare[4];
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unsigned st_ino;
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int st_ino_reserved;
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int st_atime;
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int st_atime_reserved;
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int st_mtime;
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int st_mtime_reserved;
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int st_ctime;
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int st_ctime_reserved;
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long st_blksize;
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long st_blocks;
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};
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/*
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* The OSF/1 statfs structure is much larger, but this should
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@ -209,6 +242,60 @@ struct osf_statfs {
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__kernel_fsid_t f_fsid;
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};
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struct osf_statfs64 {
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short f_type;
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short f_flags;
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int f_pad1;
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int f_pad2;
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int f_pad3;
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int f_pad4;
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int f_pad5;
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int f_pad6;
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int f_pad7;
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__kernel_fsid_t f_fsid;
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u_short f_namemax;
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short f_reserved1;
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int f_spare[8];
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char f_pad8[90];
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char f_pad9[90];
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long mount_info[10];
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u_long f_flags2;
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long f_spare2[14];
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long f_fsize;
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long f_bsize;
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long f_blocks;
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long f_bfree;
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long f_bavail;
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long f_files;
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long f_ffree;
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};
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static int
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linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat)
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{
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struct osf_stat tmp = { 0 };
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tmp.st_dev = lstat->dev;
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tmp.st_mode = lstat->mode;
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tmp.st_nlink = lstat->nlink;
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tmp.st_uid = lstat->uid;
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tmp.st_gid = lstat->gid;
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tmp.st_rdev = lstat->rdev;
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tmp.st_ldev = lstat->rdev;
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tmp.st_size = lstat->size;
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tmp.st_uatime = lstat->atime.tv_nsec / 1000;
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tmp.st_umtime = lstat->mtime.tv_nsec / 1000;
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tmp.st_uctime = lstat->ctime.tv_nsec / 1000;
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tmp.st_ino = lstat->ino;
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tmp.st_atime = lstat->atime.tv_sec;
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tmp.st_mtime = lstat->mtime.tv_sec;
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tmp.st_ctime = lstat->ctime.tv_sec;
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tmp.st_blksize = lstat->blksize;
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tmp.st_blocks = lstat->blocks;
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return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0;
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}
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static int
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linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat,
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unsigned long bufsiz)
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@ -230,6 +317,26 @@ linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_st
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return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
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}
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static int
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linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat,
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unsigned long bufsiz)
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{
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struct osf_statfs64 tmp_stat = { 0 };
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tmp_stat.f_type = linux_stat->f_type;
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tmp_stat.f_fsize = linux_stat->f_frsize;
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tmp_stat.f_bsize = linux_stat->f_bsize;
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tmp_stat.f_blocks = linux_stat->f_blocks;
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tmp_stat.f_bfree = linux_stat->f_bfree;
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tmp_stat.f_bavail = linux_stat->f_bavail;
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tmp_stat.f_files = linux_stat->f_files;
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tmp_stat.f_ffree = linux_stat->f_ffree;
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tmp_stat.f_fsid = linux_stat->f_fsid;
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if (bufsiz > sizeof(tmp_stat))
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bufsiz = sizeof(tmp_stat);
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return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0;
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}
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SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
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struct osf_statfs __user *, buffer, unsigned long, bufsiz)
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{
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@ -240,6 +347,42 @@ SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname,
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return error;
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}
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SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf)
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{
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struct kstat stat;
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int error;
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error = vfs_stat(name, &stat);
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if (error)
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return error;
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return linux_to_osf_stat(&stat, buf);
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}
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SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf)
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{
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struct kstat stat;
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int error;
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error = vfs_lstat(name, &stat);
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if (error)
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return error;
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return linux_to_osf_stat(&stat, buf);
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}
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SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf)
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{
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struct kstat stat;
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int error;
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error = vfs_fstat(fd, &stat);
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if (error)
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return error;
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return linux_to_osf_stat(&stat, buf);
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}
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SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
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struct osf_statfs __user *, buffer, unsigned long, bufsiz)
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{
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@ -250,6 +393,26 @@ SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
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return error;
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}
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SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname,
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struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
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{
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struct kstatfs linux_stat;
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int error = user_statfs(pathname, &linux_stat);
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if (!error)
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error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
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return error;
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}
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SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd,
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struct osf_statfs64 __user *, buffer, unsigned long, bufsiz)
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{
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struct kstatfs linux_stat;
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int error = fd_statfs(fd, &linux_stat);
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if (!error)
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error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz);
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return error;
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}
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/*
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* Uhh.. OSF/1 mount parameters aren't exactly obvious..
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*
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@ -241,11 +241,11 @@ sys_call_table:
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall /* 225 */
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall
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.quad sys_osf_stat
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.quad sys_osf_lstat /* 225 */
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.quad sys_osf_fstat
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.quad sys_osf_statfs64
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.quad sys_osf_fstatfs64
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.quad alpha_ni_syscall
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.quad alpha_ni_syscall /* 230 */
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.quad alpha_ni_syscall
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