[PATCH 5/9] platform: goldfish: pipe: Update the comment for GFP_ATOMIC

[rkir]

From: Roman Kiryanov 

Provide an explanation why GFP_ATOMIC is needed to prevent changing it to
other values.

Signed-off-by: Roman Kiryanov 
---
 drivers/platform/goldfish/goldfish_pipe.c | 5 -
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/goldfish/goldfish_pipe.c 
b/drivers/platform/goldfish/goldfish_pipe.c
index 8f9580454154..a4db4d12b09c 100644
--- a/drivers/platform/goldfish/goldfish_pipe.c
+++ b/drivers/platform/goldfish/goldfish_pipe.c
@@ -639,7 +639,10 @@ static int get_free_pipe_id_locked(struct 
goldfish_pipe_dev *dev)
return id;
 
{
-   /* Reallocate the array */
+   /* Reallocate the array.
+* Since get_free_pipe_id_locked runs with interrupts disabled,
+* we don't want to make calls that could lead to sleep.
+*/
u32 new_capacity = 2 * dev->pipes_capacity;
struct goldfish_pipe **pipes =
kcalloc(new_capacity, sizeof(*pipes), GFP_ATOMIC);
-- 
2.18.0.865.gffc8e1a3cd6-goog

[PATCH 5/9] platform: goldfish: pipe: Update the comment for GFP_ATOMIC

[rkir]

From: Roman Kiryanov 

Provide an explanation why GFP_ATOMIC is needed to prevent changing it to
other values.

Signed-off-by: Roman Kiryanov 
---
 drivers/platform/goldfish/goldfish_pipe.c | 5 -
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/goldfish/goldfish_pipe.c 
b/drivers/platform/goldfish/goldfish_pipe.c
index 8f9580454154..a4db4d12b09c 100644
--- a/drivers/platform/goldfish/goldfish_pipe.c
+++ b/drivers/platform/goldfish/goldfish_pipe.c
@@ -639,7 +639,10 @@ static int get_free_pipe_id_locked(struct 
goldfish_pipe_dev *dev)
return id;
 
{
-   /* Reallocate the array */
+   /* Reallocate the array.
+* Since get_free_pipe_id_locked runs with interrupts disabled,
+* we don't want to make calls that could lead to sleep.
+*/
u32 new_capacity = 2 * dev->pipes_capacity;
struct goldfish_pipe **pipes =
kcalloc(new_capacity, sizeof(*pipes), GFP_ATOMIC);
-- 
2.18.0.865.gffc8e1a3cd6-goog