linux/net/sunrpc
Linus Torvalds 96d4f267e4 Remove 'type' argument from access_ok() function
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-03 18:57:57 -08:00
..
auth_gss NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00
xprtrdma NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00
Kconfig
Makefile SUNRPC: remove generic cred code. 2018-12-19 13:52:46 -05:00
addr.c
auth.c SUNRPC discard cr_uid from struct rpc_cred. 2018-12-19 13:52:46 -05:00
auth_null.c SUNRPC: remove crbind rpc_cred operation 2018-12-19 13:52:46 -05:00
auth_unix.c SUNRPC: simplify auth_unix. 2018-12-19 13:52:46 -05:00
backchannel_rqst.c SUNRPC: Fix some kernel doc complaints 2019-01-02 12:05:18 -05:00
cache.c sunrpc: fix cache_head leak due to queued request 2018-12-04 15:42:08 -05:00
clnt.c sunrpc: Add xprt after nfs4_test_session_trunk() 2019-01-02 12:05:19 -05:00
debugfs.c
netns.h
rpc_pipe.c sunrpc: convert to DEFINE_SHOW_ATTRIBUTE 2019-01-02 12:05:49 -05:00
rpcb_clnt.c sunrpc: convert unnecessary GFP_ATOMIC to GFP_NOFS 2019-01-02 12:05:19 -05:00
sched.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
socklib.c net: dump more useful information in netdev_rx_csum_fault() 2018-11-15 11:37:04 -08:00
stats.c
sunrpc.h
sunrpc_syms.c
svc.c sunrpc: make visible processing error in bc_svc_process() 2018-12-27 21:01:41 -05:00
svc_xprt.c sunrpc: fix debug message in svc_create_xprt() 2018-12-27 21:01:41 -05:00
svcauth.c SUNRPC: Add lockless lookup of the server's auth domain 2018-10-03 11:32:59 -04:00
svcauth_unix.c SUNRPC: Make server side AUTH_UNIX use lockless lookups 2018-10-29 16:58:04 -04:00
svcsock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-03 12:53:47 -08:00
sysctl.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
timer.c
xdr.c SUNRPC: drop pointless static qualifier in xdr_get_next_encode_buffer() 2018-11-08 12:12:23 -05:00
xprt.c SUNRPC: Remove xprt_connect_status() 2018-12-18 11:04:10 -05:00
xprtmultipath.c SUNRPC: Fix some kernel doc complaints 2019-01-02 12:05:18 -05:00
xprtsock.c NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00