Messages in this thread Patch in this message | | | Date | Mon, 29 Aug 2022 21:25:21 +0000 | Subject | [RFC PATCH 18/28] mm: add FAULT_FLAG_VMA_LOCK flag | From | Suren Baghdasaryan <> |
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Add a new flag to distinguish page faults handled under protection of per-vma lock.
Signed-off-by: Suren Baghdasaryan <surenb@google.com> --- include/linux/mm.h | 3 ++- include/linux/mm_types.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h index 0d9c1563c354..7c3190eaabd7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -466,7 +466,8 @@ static inline bool fault_flag_allow_retry_first(enum fault_flag flags) { FAULT_FLAG_USER, "USER" }, \ { FAULT_FLAG_REMOTE, "REMOTE" }, \ { FAULT_FLAG_INSTRUCTION, "INSTRUCTION" }, \ - { FAULT_FLAG_INTERRUPTIBLE, "INTERRUPTIBLE" } + { FAULT_FLAG_INTERRUPTIBLE, "INTERRUPTIBLE" }, \ + { FAULT_FLAG_VMA_LOCK, "VMA_LOCK" } /* * vm_fault is filled by the pagefault handler and passed to the vma's diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 6a03f59c1e78..36562e702baf 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -886,6 +886,7 @@ enum fault_flag { FAULT_FLAG_INTERRUPTIBLE = 1 << 9, FAULT_FLAG_UNSHARE = 1 << 10, FAULT_FLAG_ORIG_PTE_VALID = 1 << 11, + FAULT_FLAG_VMA_LOCK = 1 << 12, }; typedef unsigned int __bitwise zap_flags_t; -- 2.37.2.672.g94769d06f0-goog
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