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af_unix: Do not use atomic ops for unix_sk(sk)->inflight.

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[ Upstream commit 97af84a6bba2ab2b9c704c08e67de3b5ea551bb2 ]

When touching unix_sk(sk)->inflight, we are always under
spin_lock(&unix_gc_lock).

Let's convert unix_sk(sk)->inflight to the normal unsigned long.

Signed-off-by: Kuniyuki Iwashima <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Stable-dep-of: 47d8ac011fe1 ("af_unix: Fix garbage collector racing against connect()")
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Kuniyuki Iwashima 2024-01-23 09:08:53 -08:00 • committed by Greg Kroah-Hartman
commit 7f4c391d3b
4 changed files with 16 additions and 15 deletions
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2
include/net/af_unix.h
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@ -52,7 +52,7 @@ struct unix_sock {
struct mutex iolock, bindlock;
struct sock *peer;
struct list_head link;
atomic_long_t inflight;
unsigned long inflight;
spinlock_t lock;
unsigned long gc_flags;
#define UNIX_GC_CANDIDATE 0