33dd70752c
In preparation for handling platform differentiated memory types beyond persistent memory, uplevel the "region" identifier to a global number space. This enables a device-dax instance to be registered to any memory type with guaranteed unique names. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
19 lines
357 B
C
19 lines
357 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _MEMREGION_H_
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#define _MEMREGION_H_
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#include <linux/types.h>
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#include <linux/errno.h>
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#ifdef CONFIG_MEMREGION
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int memregion_alloc(gfp_t gfp);
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void memregion_free(int id);
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#else
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static inline int memregion_alloc(gfp_t gfp)
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{
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return -ENOMEM;
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}
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void memregion_free(int id)
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{
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}
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#endif
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#endif /* _MEMREGION_H_ */
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