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xpmem: Support large page attachment

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Change-Id: I4d672eee1c905160ece204d278f0afd9b6d7dc01
Refs: #1259
This commit is contained in:
Masamichi Takagi
2019-04-04 02:29:34 +00:00
committed by Ken Sato
parent 569dc33a9c
commit a8696d811d
35 changed files with 2394 additions and 104 deletions
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14
kernel/include/xpmem_private.h
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@@ -177,19 +177,6 @@ struct xpmem_access_permit {
struct list_head ap_hashlist; /* access permit hash list */
};
struct xpmem_attachment {
mcs_rwlock_lock_t at_lock; /* att lock */
unsigned long vaddr; /* starting address of seg attached */
unsigned long at_vaddr; /* address where seg is attached */
size_t at_size; /* size of seg attachment */
struct vm_range *at_vmr; /* vm_range where seg is attachment */
volatile int flags; /* att attributes and state */
ihk_atomic_t refcnt; /* references to att */
struct xpmem_access_permit *ap; /* associated access permit */
struct list_head att_list; /* atts linked to access permit */
struct process_vm *vm; /* process_vm attached to */
};
struct xpmem_partition {
ihk_atomic_t n_opened; /* # of /dev/xpmem opened */
struct xpmem_hashlist tg_hashtable[]; /* locks + tg hash lists */
@@ -331,6 +318,7 @@ static void xpmem_ap_deref(struct xpmem_access_permit *ap);
static void xpmem_att_deref(struct xpmem_attachment *att);
static int xpmem_validate_access(struct xpmem_access_permit *, off_t, size_t,
int, unsigned long *);
static int is_remote_vm(struct process_vm *vm);
/*
* Inlines that mark an internal driver structure as being destroyable or not.