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-rw-r--r--sys/dev/null/null.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/null/null.c b/sys/dev/null/null.c
index 75f9a90..9ddb4fc 100644
--- a/sys/dev/null/null.c
+++ b/sys/dev/null/null.c
@@ -58,6 +58,7 @@ static struct cdevsw null_cdevsw = {
.d_ioctl = null_ioctl,
.d_name = "null",
.d_maj = CDEV_MAJOR,
+ .d_flags = D_NOGIANT,
};
static struct cdevsw zero_cdevsw = {
@@ -67,7 +68,7 @@ static struct cdevsw zero_cdevsw = {
.d_write = null_write,
.d_name = "zero",
.d_maj = CDEV_MAJOR,
- .d_flags = D_MMAP_ANON,
+ .d_flags = D_MMAP_ANON | D_NOGIANT,
};
static void *zbuf;
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