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| author |   Jiri Kosina <jkosina@suse.cz> | 2018-06-08 10:20:42 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2018-06-08 10:20:42 +0200 |
| commit | c1144d29f405ce1f4e6ede6482beb3d0d09750c6 (patch) | |
| tree | 0f9fe36a50005bae6ffe28a4f978e71273f5b1d1 /include/linux/xarray.h | |
| parent | HID: core: fix hid_hw_open() comment (diff) | |
| parent | HID: alps: Fix some style in 't4_read_write_register()' (diff) | |
Merge branch 'for-4.18/alps' into for-linus
hid-alps driver cleanups wrt. t4_read_write_register() handling
from Christophe Jaillet
Diffstat (limited to 'include/linux/xarray.h')
| -rw-r--r-- | include/linux/xarray.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/xarray.h b/include/linux/xarray.h new file mode 100644 index 000000000000..2dfc8006fe64 --- /dev/null +++ b/include/linux/xarray.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef _LINUX_XARRAY_H +#define _LINUX_XARRAY_H +/* + * eXtensible Arrays + * Copyright (c) 2017 Microsoft Corporation + * Author: Matthew Wilcox <mawilcox@microsoft.com> + */ + +#include <linux/spinlock.h> + +#define xa_trylock(xa) spin_trylock(&(xa)->xa_lock) +#define xa_lock(xa) spin_lock(&(xa)->xa_lock) +#define xa_unlock(xa) spin_unlock(&(xa)->xa_lock) +#define xa_lock_bh(xa) spin_lock_bh(&(xa)->xa_lock) +#define xa_unlock_bh(xa) spin_unlock_bh(&(xa)->xa_lock) +#define xa_lock_irq(xa) spin_lock_irq(&(xa)->xa_lock) +#define xa_unlock_irq(xa) spin_unlock_irq(&(xa)->xa_lock) +#define xa_lock_irqsave(xa, flags) \ + spin_lock_irqsave(&(xa)->xa_lock, flags) +#define xa_unlock_irqrestore(xa, flags) \ + spin_unlock_irqrestore(&(xa)->xa_lock, flags) + +#endif /* _LINUX_XARRAY_H */ |