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Commit e763b793f7e5c09a859fc420eb0de385d80cf636

Authored by Ben Lahaise
Committed by Linus Torvalds
1 parent ff5c6ff542
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

[PATCH] uml: switch_mm fix 

Not quite, something along the lines of the patch below works correctly (and
makes aio performance not suffer from multiple second delays), as skas0 mode
correctly switches mm contexts, unlike TT (which should probably get nuked
from the kernel now that skas0 seems to be working).

Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Showing 1 changed file with 2 additions and 1 deletions Side-by-side Diff

include/asm-um/mmu_context.h
Diff comments   View file @ e763b79
... ... @@ -29,7 +29,8 @@
29 29 * possible.
30 30 */
31 31 if (old != new && (current->flags & PF_BORROWED_MM))
32   - force_flush_all();
  32 + CHOOSE_MODE(force_flush_all(),
  33 + switch_mm_skas(&new->context.skas.id));
33 34 }
34 35  
35 36 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,