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[PATCH 4/6] kmod: return -EBUSY if modprobe limit is reached

From "Luis R. Rodriguez" <mcgrof@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 4/6] kmod: return -EBUSY if modprobe limit is reached
Date 2017-05-19 05:30 +0200
Message-ID <tIGM1-4u0-9@gated-at.bofh.it> (permalink)
References <tIGM1-4u0-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Running out of our modprobe limit is not a memory limit but
a system specific established limitation set to avoid a possible
recursive issue with modprobe. This gives userspace a better idea
of what happened if we can't load a module, it could use this to
wait and try again.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
 kernel/kmod.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kmod.c b/kernel/kmod.c
index 7635915dc91c..563600fc9bb1 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -117,7 +117,7 @@ static int kmod_umh_threads_get(void)
 	if (atomic_read(&kmod_concurrent) <= max_modprobes)
 		return 0;
 	atomic_dec(&kmod_concurrent);
-	return -ENOMEM;
+	return -EBUSY;
 }
 
 static void kmod_umh_threads_put(void)
-- 
2.11.0

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[PATCH 4/6] kmod: return -EBUSY if modprobe limit is reached "Luis R. Rodriguez" <mcgrof@kernel.org> - 2017-05-19 05:30 +0200

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