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Michal Hocko 7984c27c2c bpf: do not use KMALLOC_SHIFT_MAX 
Commit 01b3f52157 ("bpf: fix allocation warnings in bpf maps and
integer overflow") has added checks for the maximum allocateable size.
It (ab)used KMALLOC_SHIFT_MAX for that purpose.

While this is not incorrect it is not very clean because we already have
KMALLOC_MAX_SIZE for this very reason so let's change both checks to use
KMALLOC_MAX_SIZE instead.

The original motivation for using KMALLOC_SHIFT_MAX was to work around
an incorrect KMALLOC_MAX_SIZE which could lead to allocation warnings
but it is no longer needed since "slab: make sure that KMALLOC_MAX_SIZE
will fit into MAX_ORDER".

Link: http://lkml.kernel.org/r/20161220130659.16461-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2017-01-10 18:31:54 -08:00
..
Makefile cgroup: add support for eBPF programs 2016-11-25 16:25:52 -05:00
arraymap.c bpf: do not use KMALLOC_SHIFT_MAX 2017-01-10 18:31:54 -08:00
bpf_lru_list.c bpf: Fix compilation warning in __bpf_lru_list_rotate_inactive 2016-11-16 11:30:56 -05:00
bpf_lru_list.h bpf: Add percpu LRU list 2016-11-15 11:50:20 -05:00
cgroup.c bpf: Add new cgroup attach type to enable sock modifications 2016-12-02 13:46:08 -05:00
core.c bpf: fix overflow in prog accounting 2016-12-17 21:27:44 -05:00
hashtab.c bpf: do not use KMALLOC_SHIFT_MAX 2017-01-10 18:31:54 -08:00
helpers.c bpf: add helper for retrieving current numa node id 2016-10-22 17:05:52 -04:00
inode.c bpf: allow for mount options to specify permissions 2016-11-27 20:38:47 -05:00
percpu_freelist.c bpf: introduce percpu_freelist 2016-03-08 15:28:31 -05:00
percpu_freelist.h bpf: introduce percpu_freelist 2016-03-08 15:28:31 -05:00
stackmap.c bpf: add BPF_CALL_x macros for declaring helpers 2016-09-09 19:36:04 -07:00
syscall.c bpf: fix overflow in prog accounting 2016-12-17 21:27:44 -05:00
verifier.c bpf: fix mark_reg_unknown_value for spilled regs on map value marking 2016-12-17 21:27:44 -05:00