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author | Anton Altaparmakov <aia21@cantab.net> | 2005-07-13 23:09:23 +0100 |
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committer | Anton Altaparmakov <aia21@cantab.net> | 2005-07-13 23:09:23 +0100 |
commit | c514720716c7b109ff980f8b3cb93f9af872c91c (patch) | |
tree | 490a9578995705de69712893a190b67651bddc56 /arch/s390/kernel/compat_linux.c | |
parent | 07929dcb963786512c760dd3ecd148d89295e7e5 (diff) | |
parent | 1e279dd855d15b72364b4103f872d67d8592647e (diff) | |
download | linux-next-c514720716c7b109ff980f8b3cb93f9af872c91c.tar.gz |
Automatic merge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'arch/s390/kernel/compat_linux.c')
-rw-r--r-- | arch/s390/kernel/compat_linux.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 614056222875..18610cea03a2 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -58,6 +58,7 @@ #include <linux/compat.h> #include <linux/vfs.h> #include <linux/ptrace.h> +#include <linux/fadvise.h> #include <asm/types.h> #include <asm/ipc.h> @@ -1043,3 +1044,40 @@ sys32_timer_create(clockid_t which_clock, struct compat_sigevent *se32, return ret; } + +/* + * 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64. + * These need to rewrite the advise values for POSIX_FADV_{DONTNEED,NOREUSE} + * because the 31 bit values differ from the 64 bit values. + */ + +asmlinkage long +sys32_fadvise64(int fd, loff_t offset, size_t len, int advise) +{ + if (advise == 4) + advise = POSIX_FADV_DONTNEED; + else if (advise == 5) + advise = POSIX_FADV_NOREUSE; + return sys_fadvise64(fd, offset, len, advise); +} + +struct fadvise64_64_args { + int fd; + long long offset; + long long len; + int advice; +}; + +asmlinkage long +sys32_fadvise64_64(struct fadvise64_64_args __user *args) +{ + struct fadvise64_64_args a; + + if ( copy_from_user(&a, args, sizeof(a)) ) + return -EFAULT; + if (a.advice == 4) + a.advice = POSIX_FADV_DONTNEED; + else if (a.advice == 5) + a.advice = POSIX_FADV_NOREUSE; + return sys_fadvise64_64(a.fd, a.offset, a.len, a.advice); +} |