diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-15 16:29:02 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-09-03 14:53:32 -0400 |
| commit | ce61cdc270a5e0dd18057bbf29bd3471abccbda8 (patch) | |
| tree | 354d229299b6b02d98f40e5c650e6ddbc3411b7b /arch/tile/kernel/vmlinux.lds.S | |
| parent | d7c9661115fd23b4dabb710b3080dd9919dfa891 (diff) | |
tile: make __write_once a synonym for __read_mostly
This was really only useful for TILE64 when we mapped the
kernel data with small pages. Now we use a huge page and we
really don't want to map different parts of the kernel
data in different ways.
We retain the __write_once name in case we want to bring
it back to life at some point in the future.
Note that this change uncovered a latent bug where the
"smp_topology" variable happened to always be aligned mod 8
so we could store two "int" values at once, but when we
eliminated __write_once it ended up only aligned mod 4.
Fix with an explicit annotation.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/tile/kernel/vmlinux.lds.S | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S index 8b2016307eb..f1819423ffc 100644 --- a/arch/tile/kernel/vmlinux.lds.S +++ b/arch/tile/kernel/vmlinux.lds.S @@ -74,20 +74,8 @@ SECTIONS __init_end = .; _sdata = .; /* Start of data section */ - RO_DATA_SECTION(PAGE_SIZE) - - /* initially writeable, then read-only */ - . = ALIGN(PAGE_SIZE); - __w1data_begin = .; - .w1data : AT(ADDR(.w1data) - LOAD_OFFSET) { - VMLINUX_SYMBOL(__w1data_begin) = .; - *(.w1data) - VMLINUX_SYMBOL(__w1data_end) = .; - } - RW_DATA_SECTION(L2_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) - _edata = .; EXCEPTION_TABLE(L2_CACHE_BYTES) |