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authorJakub Kicinski <kuba@kernel.org>2024-05-15 07:29:56 -0700
committerJakub Kicinski <kuba@kernel.org>2024-05-15 07:30:49 -0700
commit621cde16e49b3ecf7d59a8106a20aaebfb4a59a9 (patch)
treebb4b8e255e276950c8d9502998f83a7f4f5bf5e9 /include/linux/srcutiny.h
parent317a215d493230da361028ea8a4675de334bfa1a (diff)
parent1b294a1f35616977caddaddf3e9d28e576a1adbc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Cross merge. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/srcutiny.h')
-rw-r--r--include/linux/srcutiny.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/srcutiny.h b/include/linux/srcutiny.h
index 447133171d95..4d96bbdb45f0 100644
--- a/include/linux/srcutiny.h
+++ b/include/linux/srcutiny.h
@@ -64,8 +64,10 @@ static inline int __srcu_read_lock(struct srcu_struct *ssp)
{
int idx;
+ preempt_disable(); // Needed for PREEMPT_AUTO
idx = ((READ_ONCE(ssp->srcu_idx) + 1) & 0x2) >> 1;
WRITE_ONCE(ssp->srcu_lock_nesting[idx], READ_ONCE(ssp->srcu_lock_nesting[idx]) + 1);
+ preempt_enable();
return idx;
}