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Subjectlet import_iovec deal with compat_iovecs as well v2
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Hi Al,

this series changes import_iovec to transparently deal with comat iovec
structures, and then cleanups up a lot of code dupliation.

Changes since v1:
- improve a commit message
- drop a pointless unlikely
- drop the PF_FORCE_COMPAT flag
- add a few more cleanups (including two from David Laight)

Diffstat:
arch/arm64/include/asm/unistd32.h | 10
arch/mips/kernel/syscalls/syscall_n32.tbl | 10
arch/mips/kernel/syscalls/syscall_o32.tbl | 10
arch/parisc/kernel/syscalls/syscall.tbl | 10
arch/powerpc/kernel/syscalls/syscall.tbl | 10
arch/s390/kernel/syscalls/syscall.tbl | 10
arch/sparc/kernel/syscalls/syscall.tbl | 10
arch/x86/entry/syscall_x32.c | 5
arch/x86/entry/syscalls/syscall_32.tbl | 10
arch/x86/entry/syscalls/syscall_64.tbl | 10
block/scsi_ioctl.c | 12
drivers/scsi/sg.c | 9
fs/aio.c | 38 --
fs/io_uring.c | 20 -
fs/read_write.c | 362 +--------------------
fs/splice.c | 57 ---
include/linux/compat.h | 24 -
include/linux/fs.h | 11
include/linux/uio.h | 10
include/uapi/asm-generic/unistd.h | 12
lib/iov_iter.c | 161 +++++++--
mm/process_vm_access.c | 85 ----
net/compat.c | 4
security/keys/compat.c | 37 --
security/keys/internal.h | 5
security/keys/keyctl.c | 2
tools/include/uapi/asm-generic/unistd.h | 12
tools/perf/arch/powerpc/entry/syscalls/syscall.tbl | 10
tools/perf/arch/s390/entry/syscalls/syscall.tbl | 10
tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 10
30 files changed, 280 insertions(+), 706 deletions(-)

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