git: eab581fa61b5 - stable/12 - MFC d1cbe7908986: Allocating the LinuxKPI current structure from an interrupt thread must be done using the M_NOWAIT flag after 1ae20f7c70ea .

[Hans Petter Selasky]

The branch stable/12 has been updated by hselasky:

URL: https://cgit.FreeBSD.org/src/commit/?id=eab581fa61b535328ea525036c6e9a45bf54f474

commit eab581fa61b535328ea525036c6e9a45bf54f474
Author:     Hans Petter Selasky <hselasky at FreeBSD.org>
AuthorDate: 2021-03-10 09:50:01 +0000
Commit:     Hans Petter Selasky <hselasky at FreeBSD.org>
CommitDate: 2021-03-23 11:45:29 +0000

    MFC d1cbe7908986:
    Allocating the LinuxKPI current structure from an interrupt thread must be
    done using the M_NOWAIT flag after 1ae20f7c70ea .
    
    Sponsored by:   Mellanox Technologies // NVIDIA Networking
    
    (cherry picked from commit d1cbe79089868226625c12ef49f51214d79aa427)
---
 sys/compat/linuxkpi/common/src/linux_compat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c
index f93905a03158..f120856dd23d 100644
--- a/sys/compat/linuxkpi/common/src/linux_compat.c
+++ b/sys/compat/linuxkpi/common/src/linux_compat.c
@@ -2372,7 +2372,8 @@ linux_irq_handler(void *ent)
 {
 	struct irq_ent *irqe;
 
-	linux_set_current(curthread);
+	if (linux_set_current_flags(curthread, M_NOWAIT))
+		return;
 
 	irqe = ent;
 	irqe->handler(irqe->irq, irqe->arg);