From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas at arm.com (Catalin Marinas) Date: Wed, 22 May 2019 12:51:39 +0100 Subject: [PATCH v15 06/17] mm: untag user pointers in do_pages_move In-Reply-To: <474b3c113edae1f2fa679dc7237ec070ff4efb70.1557160186.git.andreyknvl@google.com> References: <474b3c113edae1f2fa679dc7237ec070ff4efb70.1557160186.git.andreyknvl@google.com> Message-ID: <20190522115138.52ew2totjd6i4aaq@mbp> On Mon, May 06, 2019 at 06:30:52PM +0200, Andrey Konovalov wrote: > This patch is a part of a series that extends arm64 kernel ABI to allow to > pass tagged user pointers (with the top byte set to something else other > than 0x00) as syscall arguments. > > do_pages_move() is used in the implementation of the move_pages syscall. > > Untag user pointers in this function. > > Signed-off-by: Andrey Konovalov Reviewed-by: Catalin Marinas From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Wed, 22 May 2019 12:51:39 +0100 Subject: [PATCH v15 06/17] mm: untag user pointers in do_pages_move In-Reply-To: <474b3c113edae1f2fa679dc7237ec070ff4efb70.1557160186.git.andreyknvl@google.com> References: <474b3c113edae1f2fa679dc7237ec070ff4efb70.1557160186.git.andreyknvl@google.com> Message-ID: <20190522115138.52ew2totjd6i4aaq@mbp> Content-Type: text/plain; charset="UTF-8" Message-ID: <20190522115139.WsBnfzmwdVbLnd59Vz-hen_sk2ZJHcvNIYkXN0pMpIg@z> On Mon, May 06, 2019@06:30:52PM +0200, Andrey Konovalov wrote: > This patch is a part of a series that extends arm64 kernel ABI to allow to > pass tagged user pointers (with the top byte set to something else other > than 0x00) as syscall arguments. > > do_pages_move() is used in the implementation of the move_pages syscall. > > Untag user pointers in this function. > > Signed-off-by: Andrey Konovalov Reviewed-by: Catalin Marinas