| Message ID | 20220901173516.702122-19-surenb@google.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | per-VMA locks proposal | expand |
Le 01/09/2022 à 19:35, Suren Baghdasaryan a écrit : > Add a new flag to distinguish page faults handled under protection of > per-vma lock. > > Signed-off-by: Suren Baghdasaryan <surenb@google.com> FWIW, Reviewed-by: Laurent Dufour <laurent.dufour@fr.ibm.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;
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;
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(-)