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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-28 16:56:43 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-09-28 16:56:43 +0200 |
| commit | 94c12cc7d196bab34aaa98d38521549fa1e5ef76 (patch) | |
| tree | 8e0cec0ed44445d74a2cb5160303d6b4dfb1bc31 /include/asm-s390/uaccess.h | |
| parent | 25d83cbfaa44e1b9170c0941c3ef52ca39f54ccc (diff) | |
| download | kernel_samsung_tuna-94c12cc7d196bab34aaa98d38521549fa1e5ef76.zip kernel_samsung_tuna-94c12cc7d196bab34aaa98d38521549fa1e5ef76.tar.gz kernel_samsung_tuna-94c12cc7d196bab34aaa98d38521549fa1e5ef76.tar.bz2 | |
[S390] Inline assembly cleanup.
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used. That results in slightly better code.
Thanks to Christian Borntraeger for proof reading the changes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390/uaccess.h')
| -rw-r--r-- | include/asm-s390/uaccess.h | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h index e2047b0..72ae4ef 100644 --- a/include/asm-s390/uaccess.h +++ b/include/asm-s390/uaccess.h @@ -38,25 +38,14 @@ #define get_ds() (KERNEL_DS) #define get_fs() (current->thread.mm_segment) -#ifdef __s390x__ #define set_fs(x) \ ({ \ unsigned long __pto; \ current->thread.mm_segment = (x); \ __pto = current->thread.mm_segment.ar4 ? \ S390_lowcore.user_asce : S390_lowcore.kernel_asce; \ - asm volatile ("lctlg 7,7,%0" : : "m" (__pto) ); \ + __ctl_load(__pto, 7, 7); \ }) -#else /* __s390x__ */ -#define set_fs(x) \ -({ \ - unsigned long __pto; \ - current->thread.mm_segment = (x); \ - __pto = current->thread.mm_segment.ar4 ? \ - S390_lowcore.user_asce : S390_lowcore.kernel_asce; \ - asm volatile ("lctl 7,7,%0" : : "m" (__pto) ); \ -}) -#endif /* __s390x__ */ #define segment_eq(a,b) ((a).ar4 == (b).ar4) |