mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-17 18:56:24 +00:00
d4aa219a07
Allow external callers to force the cacheinfo code to release all its
references to cache nodes, e.g. before processing device tree updates
post-migration, and to rebuild the hierarchy afterward.
CPU online/offline must be blocked by callers; enforce this.
Fixes: 410bccf97881 ("powerpc/pseries: Partition migration in the kernel")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
14 lines
425 B
C
14 lines
425 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _PPC_CACHEINFO_H
|
|
#define _PPC_CACHEINFO_H
|
|
|
|
/* These are just hooks for sysfs.c to use. */
|
|
extern void cacheinfo_cpu_online(unsigned int cpu_id);
|
|
extern void cacheinfo_cpu_offline(unsigned int cpu_id);
|
|
|
|
/* Allow migration/suspend to tear down and rebuild the hierarchy. */
|
|
extern void cacheinfo_teardown(void);
|
|
extern void cacheinfo_rebuild(void);
|
|
|
|
#endif /* _PPC_CACHEINFO_H */
|