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
blkcg: remove bio->bi_css and instead use bio->bi_blkg
2018-12-07 22:26:37 -07:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
tracing: Fix ftrace_graph_get_ret_stack() to use task and not current
2018-12-22 08:21:03 -05:00
Tracing changes for v4.21:
2018-12-31 11:46:59 -08:00
ftrace: Create new ftrace_internal.h header
2018-12-08 20:54:06 -05:00
tracing: Use dyn_event framework for synthetic events
2018-12-08 20:54:10 -05:00
tracing: Add unified dynamic event framework
2018-12-08 20:54:09 -05:00
tracing: Use trace_clock_local() for looping in preemptirq_delay_test.c
2018-10-17 15:35:33 -04:00
Tracing changes for v4.21:
2018-12-31 11:46:59 -08:00
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
Tracing changes for v4.21:
2018-12-31 11:46:59 -08:00
tracing: Add tracefs file buffer_percentage
2018-12-08 20:54:08 -05:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
tracing: Add generic event-name based remove event method
2018-12-10 12:22:44 -05:00
tracing: Add unified dynamic event framework
2018-12-08 20:54:09 -05:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_uprobe: support reference counter in fd-based uprobe
2018-10-10 22:14:17 -04:00
tracing: Use str_has_prefix() instead of using fixed sizes
2018-12-22 22:51:54 -05:00
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-12-26 13:07:19 -08:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
tracing: Have the historgram use the result of str_has_prefix() for len of prefix
2018-12-22 22:52:09 -05:00
tracing: Fix memory leak in set_trigger_filter()
2018-12-11 13:50:19 -05:00
function_graph: Move ftrace_graph_ret_addr() to fgraph.c
2018-12-08 20:54:07 -05:00
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
fgraph: Add new fgraph_ops structure to enable function graph hooks
2018-12-08 20:54:07 -05:00
Tracing changes for v4.21:
2018-12-31 11:46:59 -08:00
selftest/ftrace: Move kprobe selftest function to separate compile unit
2018-07-30 18:41:04 -04:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
tracing: Simplify printf'ing in seq_print_sym
2018-12-22 08:21:06 -05:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
tracing: More reverting of "tracing: Centralize preemptirq tracepoints and unify their usage"
2018-08-10 15:12:00 -04:00
tracing: Trivia spelling fix containerof() -> container_of()
2018-09-26 12:21:00 +03:00
tracing: Use the return of str_has_prefix() to remove open coded numbers
2018-12-22 22:52:30 -05:00
tracing/kprobes: Use dyn_event framework for kprobe events
2018-12-08 20:54:09 -05:00
tracing: probeevent: Add array type support
2018-10-10 22:19:10 -04:00
fgraph: Add new fgraph_ops structure to enable function graph hooks
2018-12-08 20:54:07 -05:00
fgraph: Add new fgraph_ops structure to enable function graph hooks
2018-12-08 20:54:07 -05:00
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
tracing: Use the return of str_has_prefix() to remove open coded numbers
2018-12-22 22:52:30 -05:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
tracing: Consolidate trace_add/remove_event_call back to the nolock functions
2018-12-10 12:22:10 -05:00
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
96d4f267e4