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cxl: don't manipulate the mm.mm_users field directly 

It is better to rely on the API provided by the MM layer instead of
directly manipulating the mm_users field.

Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210310174405.51044-1-ldufour@linux.ibm.com
This commit is contained in:
Laurent Dufour 2021-03-10 18:44:05 +01:00 committed by Michael Ellerman
parent d943bc742a
commit 2d9f69bc5a
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/cxl/fault.c
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@ -200,7 +200,7 @@ static struct mm_struct *get_mem_context(struct cxl_context *ctx)
if (ctx->mm == NULL)
return NULL;
if (!atomic_inc_not_zero(&ctx->mm->mm_users))
if (!mmget_not_zero(ctx->mm))
return NULL;
return ctx->mm;