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powerpc/mm/hash: Fix off-by-one in comment about kernel contexts ids 

Michal Suchánek noticed a comment in book3s/64/mmu-hash.h about the context ids
we use for the kernel was inconsistent with the code and other comments in the
same file.

It should read 1-4 not 1-5.

While we're touching it, update "address" to "addresses" which makes more sense
as it's referring to more than one address below.

Reported-by: Michal Suchánek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2017-04-28 21:57:22 +10:00
parent b6e1f6adce
commit add2e1e585
1 changed files with 1 additions and 1 deletions
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arch/powerpc/include/asm/book3s/64/mmu-hash.h
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@ -494,7 +494,7 @@ extern void slb_set_size(u16 size);
*
* For user processes max context id is limited to MAX_USER_CONTEXT.
* For kernel space, we use context ids 1-5 to map address as below:
* For kernel space, we use context ids 1-4 to map addresses as below:
* NOTE: each context only support 64TB now.
* 0x00001 - [ 0xc000000000000000 - 0xc0003fffffffffff ]
* 0x00002 - [ 0xd000000000000000 - 0xd0003fffffffffff ]