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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 2 files:

Smatch caller information:

mm/huge_memory.c move_pages_huge_pmd() -> double_pt_lock()

Type Parameter Key Value
PARAM_VALUE 0 ptl1 4096-ptr_max
PARAM_VALUE 0 ptl1->rlock.dep_map->name 0-255
DATA_SOURCE 0 ptl1 r pmd_lockptr
DATA_SOURCE 1 ptl2 r pmd_lockptr
NOCHECK_CALL
LOCK2 &ctx->map_changing_lock
TYPE_LOCK (struct userfaultfd_ctx)->map_changing_lock

mm/userfaultfd.c move_present_ptes() -> double_pt_lock()

Type Parameter Key Value
PARAM_VALUE 0 ptl1 4096-ptr_max
PARAM_VALUE 0 ptl1->rlock.dep_map->name 0-255
PARAM_VALUE 1 ptl2 4096-ptr_max
PARAM_VALUE 1 ptl2->rlock.dep_map->name 0-255
DATA_SOURCE 0 ptl1 $11
DATA_SOURCE 1 ptl2 $12
NOCHECK_CALL
LOCK2 &ctx->map_changing_lock
LOCK2 rcu_read
TYPE_LOCK (struct userfaultfd_ctx)->map_changing_lock

mm/userfaultfd.c move_swap_pte() -> double_pt_lock()

Type Parameter Key Value
PARAM_VALUE 0 ptl1 4096-ptr_max
PARAM_VALUE 0 ptl1->rlock.dep_map->name 0-255
PARAM_VALUE 1 ptl2 4096-ptr_max
PARAM_VALUE 1 ptl2->rlock.dep_map->name 0-255
DATA_SOURCE 0 ptl1 $10
DATA_SOURCE 1 ptl2 $11
NOCHECK_CALL
LOCK2 &ctx->map_changing_lock
LOCK2 rcu_read
TYPE_LOCK (struct userfaultfd_ctx)->map_changing_lock

mm/userfaultfd.c move_zeropage_pte() -> double_pt_lock()

Type Parameter Key Value
PARAM_VALUE 0 ptl1 4096-ptr_max
PARAM_VALUE 0 ptl1->rlock.dep_map->name 0-255
PARAM_VALUE 1 ptl2 4096-ptr_max
PARAM_VALUE 1 ptl2->rlock.dep_map->name 0-255
DATA_SOURCE 0 ptl1 $11
DATA_SOURCE 1 ptl2 $12
NOCHECK_CALL
LOCK2 &ctx->map_changing_lock
LOCK2 rcu_read
TYPE_LOCK (struct userfaultfd_ctx)->map_changing_lock