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| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2005-05-29 00:52:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-29 01:46:14 +0200 |
| commit | f767b02f35a3db5c1b1c6454992c070510cef07f (patch) | |
| tree | 516652e8762f089b4ab114228ecc2a7a1be02007 /arch/um/sys-x86_64/syscalls.c | |
| parent | [PATCH] irq code: Add coherence test for PREEMPT_ACTIVE (diff) | |
| download | linux-f767b02f35a3db5c1b1c6454992c070510cef07f.tar.xz linux-f767b02f35a3db5c1b1c6454992c070510cef07f.zip | |
[PATCH] uml: fixlet for arch_prctl_skas
Fix it a bit (after some cross checking with "man arch_prctl"). There were:
*) typos FS/GS and back
*) FS in place of FS_BASE (and the same for GS)
*) the procedure used put_user on &addr, where addr was the parameter (i.e.
changed its param with put_user, completely useless) rather than interpreting
addr as a pointer, as requested in this case (see the man page).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/sys-x86_64/syscalls.c')
| -rw-r--r-- | arch/um/sys-x86_64/syscalls.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index d4a59657fb99..6f44f40204ed 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -133,23 +133,27 @@ static long arch_prctl_tt(int code, unsigned long addr) #ifdef CONFIG_MODE_SKAS +/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */ static long arch_prctl_skas(int code, unsigned long addr) { long ret = 0; switch(code){ - case ARCH_SET_GS: - current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; - break; case ARCH_SET_FS: current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr; break; + case ARCH_SET_GS: + current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr; + break; case ARCH_GET_FS: - ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[FS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; case ARCH_GET_GS: - ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \ -long)], &addr); + ret = put_user(current->thread.regs.regs.skas. + regs[GS_BASE / sizeof(unsigned long)], + (unsigned long __user *)addr); break; default: ret = -EINVAL; |