Chris Metcalf 719ea79e33 arch/tile: fix up locking in pgtable.c slightly ...

We should be holding the init_mm.page_table_lock in shatter_huge_page()
since we are modifying the kernel page tables.  Then, only if we are
walking the other root page tables to update them, do we want to take
the pgd_lock.

Add a comment about taking the pgd_lock that we always do it with
interrupts disabled and therefore are not at risk from the tlbflush
IPI deadlock as is seen on x86.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

2012-04-02 12:13:22 -04:00

..

elf.c

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

extable.c

…

fault.c

arch/tile: don't enable irqs unconditionally in page fault handler

2012-04-02 12:13:09 -04:00

highmem.c

highmem: kill all __kmap_atomic()

2012-03-20 21:48:30 +08:00

homecache.c

arch/tile: fix double-free bug in homecache_free_pages()

2011-12-03 15:31:47 -05:00

hugetlbpage.c

…

init.c

arch/tile: fix bug in loading kernels larger than 16 MB

2012-04-02 12:13:12 -04:00

Makefile

…

migrate_32.S

…

migrate_64.S

…

migrate.h

…

mmap.c

…

pgtable.c

arch/tile: fix up locking in pgtable.c slightly

2012-04-02 12:13:22 -04:00