s390/mm: remove set_fs / rework address space handling

[linux-2.6-microblaze.git] / arch / s390 / pci / pci_mmio.c

diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index 1a6adbc..de3bdbe 100644 (file)
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -93,12 +93,10 @@ static inline int __memcpy_toio_inuser(void __iomem *dst,
 {
        int size, rc = 0;
        u8 status = 0;
-       mm_segment_t old_fs;
 
        if (!src)
                return -EINVAL;
 
-       old_fs = enable_sacf_uaccess();
        while (n > 0) {
                size = zpci_get_max_write_size((u64 __force) dst,
                                               (u64 __force) src, n,
@@ -113,7 +111,6 @@ static inline int __memcpy_toio_inuser(void __iomem *dst,
                dst += size;
                n -= size;
        }
-       disable_sacf_uaccess(old_fs);
        if (rc)
                zpci_err_mmio(rc, status, (__force u64) dst);
        return rc;
@@ -246,9 +243,7 @@ static inline int __memcpy_fromio_inuser(void __user *dst,
 {
        int size, rc = 0;
        u8 status;
-       mm_segment_t old_fs;
 
-       old_fs = enable_sacf_uaccess();
        while (n > 0) {
                size = zpci_get_max_write_size((u64 __force) src,
                                               (u64 __force) dst, n,
@@ -260,7 +255,6 @@ static inline int __memcpy_fromio_inuser(void __user *dst,
                dst += size;
                n -= size;
        }
-       disable_sacf_uaccess(old_fs);
        if (rc)
                zpci_err_mmio(rc, status, (__force u64) dst);
        return rc;