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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-03-18 22:53:28 +0800 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-06-29 16:26:38 +0100 |
| commit | 7403bd14d7b545ef89c3443c09ccdb3c631a9a27 (patch) | |
| tree | 4c3aa568b20d49a94775c3f05b411ae9172f076f | |
| parent | ce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff) | |
| download | blackbird-op-linux-7403bd14d7b545ef89c3443c09ccdb3c631a9a27.tar.gz blackbird-op-linux-7403bd14d7b545ef89c3443c09ccdb3c631a9a27.zip | |
PCI: hv: Replace GFP_ATOMIC with GFP_KERNEL in new_pcichild_device()
new_pcichild_device() is not called in atomic context.
The call chain ending up at new_pcichild_device() is:
[1] new_pcichild_device() <- pci_devices_present_work()
pci_devices_present_work() is only set in INIT_WORK().
Despite never getting called from atomic context,
new_pcichild_device() calls kzalloc with GFP_ATOMIC,
which waits busily for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL
to avoid busy waiting.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
[lorenzo.pieralisi@arm.com: reworked commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 6cc5036ac83c..ba1d4b556064 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -1543,7 +1543,7 @@ static struct hv_pci_dev *new_pcichild_device(struct hv_pcibus_device *hbus, unsigned long flags; int ret; - hpdev = kzalloc(sizeof(*hpdev), GFP_ATOMIC); + hpdev = kzalloc(sizeof(*hpdev), GFP_KERNEL); if (!hpdev) return NULL; |
