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authorIngo Molnar <mingo@kernel.org>2015-03-05 20:52:18 +0100
committerIngo Molnar <mingo@kernel.org>2015-03-05 20:52:18 +0100
commit33ca8a53f262b4af40611bea331b8c87d133af72 (patch)
treed6468c820a556c4915bcb5b761204a0fb19e8225 /kernel/sys.c
parentdb2dcb4f91d5fec5c346a82c309187ee821e2495 (diff)
parent13a7a6ac0a11197edcd0f756a035f472b42cdf8b (diff)
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Merge tag 'v4.0-rc2' into irq/core, to refresh the tree before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index ea9c88109894..a03d9cd23ed7 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -97,6 +97,12 @@
#ifndef MPX_DISABLE_MANAGEMENT
# define MPX_DISABLE_MANAGEMENT(a) (-EINVAL)
#endif
+#ifndef GET_FP_MODE
+# define GET_FP_MODE(a) (-EINVAL)
+#endif
+#ifndef SET_FP_MODE
+# define SET_FP_MODE(a,b) (-EINVAL)
+#endif
/*
* this is where the system-wide overflow UID and GID are defined, for
@@ -1102,6 +1108,7 @@ DECLARE_RWSEM(uts_sem);
/*
* Work around broken programs that cannot handle "Linux 3.0".
* Instead we map 3.x to 2.6.40+x, so e.g. 3.0 would be 2.6.40
+ * And we map 4.x to 2.6.60+x, so 4.0 would be 2.6.60.
*/
static int override_release(char __user *release, size_t len)
{
@@ -1121,7 +1128,7 @@ static int override_release(char __user *release, size_t len)
break;
rest++;
}
- v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40;
+ v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 60;
copy = clamp_t(size_t, len, 1, sizeof(buf));
copy = scnprintf(buf, copy, "2.6.%u%s", v, rest);
ret = copy_to_user(release, buf, copy + 1);
@@ -2219,6 +2226,12 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
return -EINVAL;
error = MPX_DISABLE_MANAGEMENT(me);
break;
+ case PR_SET_FP_MODE:
+ error = SET_FP_MODE(me, arg2);
+ break;
+ case PR_GET_FP_MODE:
+ error = GET_FP_MODE(me);
+ break;
default:
error = -EINVAL;
break;