The patch titled
Subject: mm/dmapool: use might_alloc()
has been added to the -mm tree. Its filename is
mm-dmapool-use-might_alloc.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-dmapool-use-might_alloc.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-dmapool-use-might_alloc.patch
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------------------------------------------------------
From: Daniel Vetter <daniel.vetter@xxxxxxxx>
Subject: mm/dmapool: use might_alloc()
Now that my little helper has landed, use it more. On top of the existing
check this also uses lockdep through the fs_reclaim annotations.
Link: https://lkml.kernel.org/r/20210113135009.3606813-1-daniel.vetter@xxxxxxxx
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/dmapool.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/mm/dmapool.c~mm-dmapool-use-might_alloc
+++ a/mm/dmapool.c
@@ -28,6 +28,7 @@
#include <linux/mutex.h>
#include <linux/poison.h>
#include <linux/sched.h>
+#include <linux/sched/mm.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/spinlock.h>
@@ -319,7 +320,7 @@ void *dma_pool_alloc(struct dma_pool *po
size_t offset;
void *retval;
- might_sleep_if(gfpflags_allow_blocking(mem_flags));
+ might_alloc(mem_flags);
spin_lock_irqsave(&pool->lock, flags);
list_for_each_entry(page, &pool->page_list, page_list) {
_
Patches currently in -mm which might be from daniel.vetter@xxxxxxxx are
mm-dmapool-use-might_alloc.patch
bdi-use-might_alloc.patch
