diff options
Diffstat (limited to 'sys/vm/vm_object.h')
| -rw-r--r-- | sys/vm/vm_object.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 2f2c961..cf54663 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -154,11 +154,21 @@ struct vm_object { /* * Swap pager * + * swp_tmpfs - back-pointer to the tmpfs vnode, + * if any, which uses the vm object + * as backing store. The handle + * cannot be reused for linking, + * because the vnode can be + * reclaimed and recreated, making + * the handle changed and hash-chain + * invalid. + * * swp_bcount - number of swap 'swblock' metablocks, each * contains up to 16 swapblk assignments. * see vm/swap_pager.h */ struct { + void *swp_tmpfs; int swp_bcount; } swp; } un_pager; @@ -179,6 +189,7 @@ struct vm_object { #define OBJ_COLORED 0x1000 /* pg_color is defined */ #define OBJ_ONEMAPPING 0x2000 /* One USE (a single, non-forked) mapping flag */ #define OBJ_DISCONNECTWNT 0x4000 /* disconnect from vnode wanted */ +#define OBJ_TMPFS 0x8000 #define IDX_TO_OFF(idx) (((vm_ooffset_t)(idx)) << PAGE_SHIFT) #define OFF_TO_IDX(off) ((vm_pindex_t)(((vm_ooffset_t)(off)) >> PAGE_SHIFT)) |
