mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
powerpc: Fix personality handling in ppc64_personality()
Directly comparing current->personality against PER_LINUX32 doesn't work in cases when any of the personality flags stored in the top three bytes are used. Directly forcefully setting personality to PER_LINUX32 or PER_LINUX discards any flags stored in the top three bytes Use personality() macro to compare only PER_MASK bytes and make sure that we are setting only the bits that should be set, instead of overwriting the whole value. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
parent
4c374af5fd
commit
7256a5d2da
1 changed files with 4 additions and 4 deletions
|
@ -107,11 +107,11 @@ long ppc64_personality(unsigned long personality)
|
|||
long ret;
|
||||
|
||||
if (personality(current->personality) == PER_LINUX32
|
||||
&& personality == PER_LINUX)
|
||||
personality = PER_LINUX32;
|
||||
&& personality(personality) == PER_LINUX)
|
||||
personality = (personality & ~PER_MASK) | PER_LINUX32;
|
||||
ret = sys_personality(personality);
|
||||
if (ret == PER_LINUX32)
|
||||
ret = PER_LINUX;
|
||||
if (personality(ret) == PER_LINUX32)
|
||||
ret = (ret & ~PER_MASK) | PER_LINUX;
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
|
Loading…
Reference in a new issue