| Message ID | 20240117223922.1445327-1-lokeshgidra@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | userfaultfd: fix return error if mmap_changing is non-zero in MOVE ioctl | expand |
On Wed, Jan 17, 2024 at 2:39 PM Lokesh Gidra <lokeshgidra@google.com> wrote: > > To be consistent with other uffd ioctl's returning EAGAIN when > mmap_changing is detected, we should change UFFDIO_MOVE to do the same. > > Signed-off-by: Lokesh Gidra <lokeshgidra@google.com> Looks correct. Thanks for catching it! Acked-by: Suren Baghdasaryan <surenb@google.com> > --- > fs/userfaultfd.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c > index 959551ff9a95..05c8e8a05427 100644 > --- a/fs/userfaultfd.c > +++ b/fs/userfaultfd.c > @@ -2047,7 +2047,7 @@ static int userfaultfd_move(struct userfaultfd_ctx *ctx, > ret = move_pages(ctx, mm, uffdio_move.dst, uffdio_move.src, > uffdio_move.len, uffdio_move.mode); > else > - ret = -EINVAL; > + ret = -EAGAIN; > > mmap_read_unlock(mm); > mmput(mm); > -- > 2.43.0.429.g432eaa2c6b-goog >
On Wed, Jan 17, 2024 at 02:39:21PM -0800, Lokesh Gidra wrote: > To be consistent with other uffd ioctl's returning EAGAIN when > mmap_changing is detected, we should change UFFDIO_MOVE to do the same. > > Signed-off-by: Lokesh Gidra <lokeshgidra@google.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> > --- > fs/userfaultfd.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c > index 959551ff9a95..05c8e8a05427 100644 > --- a/fs/userfaultfd.c > +++ b/fs/userfaultfd.c > @@ -2047,7 +2047,7 @@ static int userfaultfd_move(struct userfaultfd_ctx *ctx, > ret = move_pages(ctx, mm, uffdio_move.dst, uffdio_move.src, > uffdio_move.len, uffdio_move.mode); > else > - ret = -EINVAL; > + ret = -EAGAIN; > > mmap_read_unlock(mm); > mmput(mm); > -- > 2.43.0.429.g432eaa2c6b-goog > >
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 959551ff9a95..05c8e8a05427 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -2047,7 +2047,7 @@ static int userfaultfd_move(struct userfaultfd_ctx *ctx, ret = move_pages(ctx, mm, uffdio_move.dst, uffdio_move.src, uffdio_move.len, uffdio_move.mode); else - ret = -EINVAL; + ret = -EAGAIN; mmap_read_unlock(mm); mmput(mm);
To be consistent with other uffd ioctl's returning EAGAIN when mmap_changing is detected, we should change UFFDIO_MOVE to do the same. Signed-off-by: Lokesh Gidra <lokeshgidra@google.com> --- fs/userfaultfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)