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author | Jason Gunthorpe | 2018-09-06 00:21:22 +0200 |
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committer | Jason Gunthorpe | 2018-09-06 00:21:22 +0200 |
commit | 2c910cb75e1fe6de52d95c8e32caedd1629a33a5 (patch) | |
tree | 94a0eea6f8cde689d11e7583ddd0a930b8785ab4 /arch/x86/include/asm/pgtable-3level.h | |
parent | RDMA/core: Replace open-coded variant of get_device (diff) | |
parent | RDMA/uverbs: Use device.groups to initialize device attributes (diff) | |
download | kernel-qcow2-linux-2c910cb75e1fe6de52d95c8e32caedd1629a33a5.tar.gz kernel-qcow2-linux-2c910cb75e1fe6de52d95c8e32caedd1629a33a5.tar.xz kernel-qcow2-linux-2c910cb75e1fe6de52d95c8e32caedd1629a33a5.zip |
Merge branch 'uverbs_dev_cleanups' into rdma.git for-next
For dependencies, branch based on rdma.git 'for-rc' of
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/
Pull 'uverbs_dev_cleanups' from Leon Romanovsky:
====================
Reuse the char device code interfaces to simplify ib_uverbs_device
creation and destruction. As part of this series, we are sending fix to
cleanup path, which was discovered during internal review,
The fix definitely can go to -rc, but it means that this series will be
dependent on rdma-rc.
====================
* branch 'uverbs_dev_cleanups':
RDMA/uverbs: Use device.groups to initialize device attributes
RDMA/uverbs: Use cdev_device_add() instead of cdev_add()
RDMA/core: Depend on device_add() to add device attributes
RDMA/uverbs: Fix error cleanup path of ib_uverbs_add_one()
Resolved conflict in ib_device_unregister_sysfs()
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable-3level.h')
-rw-r--r-- | arch/x86/include/asm/pgtable-3level.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h index a564084c6141..f8b1ad2c3828 100644 --- a/arch/x86/include/asm/pgtable-3level.h +++ b/arch/x86/include/asm/pgtable-3level.h @@ -2,6 +2,8 @@ #ifndef _ASM_X86_PGTABLE_3LEVEL_H #define _ASM_X86_PGTABLE_3LEVEL_H +#include <asm/atomic64_32.h> + /* * Intel Physical Address Extension (PAE) Mode - three-level page * tables on PPro+ CPUs. @@ -150,10 +152,7 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep) { pte_t res; - /* xchg acts as a barrier before the setting of the high bits */ - res.pte_low = xchg(&ptep->pte_low, 0); - res.pte_high = ptep->pte_high; - ptep->pte_high = 0; + res.pte = (pteval_t)arch_atomic64_xchg((atomic64_t *)ptep, 0); return res; } |