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9e1530b2a3
* Refreshed patches. * Removed patches: - target/linux/ar71xx/patches-4.9/103-MIPS-ath79-fix-register-address-in-ath79_ddr_wb_flus.patch superseded by upstream - target/linux/ar71xx/patches-4.9/403-mtd_fix_cfi_cmdset_0002_status_check.patch superseded by upstream - target/linux/brcm63xx/patches-4.9/001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch accepted upstream - target/linux/brcm63xx/patches-4.9/001-4.15-08-bcm63xx_enet-correct-clock-usage.patch accepted upstream - target/linux/brcm63xx/patches-4.9/001-4.15-09-bcm63xx_enet-do-not-write-to-random-DMA-channel-on-B.patch accepted upstream - target/linux/generic/pending-4.9/900-gen_stats-fix-netlink-stats-padding.patch * New backported patch to address ext4 breakage, introduced in 4.9.112: - backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch Also add ARM64_SSBD symbol to ARM64 targets still running kernel 4.9 Thanks to Koen Vandeputte for pointing out the need to add the ARM64_SSBD symbol, and the ext4 patch. Compile-tested on: ar71xx Run-tested on: ar71xx Signed-off-by: Stijn Segers <foss@volatilesystems.org>
91 lines
2.8 KiB
Diff
91 lines
2.8 KiB
Diff
From 40fc3423b983b864bf70b03199191260ae9b2ea6 Mon Sep 17 00:00:00 2001
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From: Eric Dumazet <edumazet@google.com>
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Date: Sat, 3 Dec 2016 11:14:50 -0800
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Subject: [PATCH 01/10] tcp: tsq: add tsq_flags / tsq_enum
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This is a cleanup, to ease code review of following patches.
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Old 'enum tsq_flags' is renamed, and a new enumeration is added
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with the flags used in cmpxchg() operations as opposed to
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single bit operations.
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Signed-off-by: Eric Dumazet <edumazet@google.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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include/linux/tcp.h | 11 ++++++++++-
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net/ipv4/tcp_output.c | 16 ++++++++--------
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2 files changed, 18 insertions(+), 9 deletions(-)
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--- a/include/linux/tcp.h
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+++ b/include/linux/tcp.h
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@@ -368,7 +368,7 @@ struct tcp_sock {
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u32 *saved_syn;
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};
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-enum tsq_flags {
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+enum tsq_enum {
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TSQ_THROTTLED,
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TSQ_QUEUED,
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TCP_TSQ_DEFERRED, /* tcp_tasklet_func() found socket was owned */
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@@ -379,6 +379,15 @@ enum tsq_flags {
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*/
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};
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+enum tsq_flags {
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+ TSQF_THROTTLED = (1UL << TSQ_THROTTLED),
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+ TSQF_QUEUED = (1UL << TSQ_QUEUED),
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+ TCPF_TSQ_DEFERRED = (1UL << TCP_TSQ_DEFERRED),
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+ TCPF_WRITE_TIMER_DEFERRED = (1UL << TCP_WRITE_TIMER_DEFERRED),
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+ TCPF_DELACK_TIMER_DEFERRED = (1UL << TCP_DELACK_TIMER_DEFERRED),
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+ TCPF_MTU_REDUCED_DEFERRED = (1UL << TCP_MTU_REDUCED_DEFERRED),
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+};
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+
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static inline struct tcp_sock *tcp_sk(const struct sock *sk)
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{
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return (struct tcp_sock *)sk;
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--- a/net/ipv4/tcp_output.c
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+++ b/net/ipv4/tcp_output.c
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@@ -789,10 +789,10 @@ static void tcp_tasklet_func(unsigned lo
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}
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}
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-#define TCP_DEFERRED_ALL ((1UL << TCP_TSQ_DEFERRED) | \
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- (1UL << TCP_WRITE_TIMER_DEFERRED) | \
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- (1UL << TCP_DELACK_TIMER_DEFERRED) | \
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- (1UL << TCP_MTU_REDUCED_DEFERRED))
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+#define TCP_DEFERRED_ALL (TCPF_TSQ_DEFERRED | \
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+ TCPF_WRITE_TIMER_DEFERRED | \
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+ TCPF_DELACK_TIMER_DEFERRED | \
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+ TCPF_MTU_REDUCED_DEFERRED)
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/**
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* tcp_release_cb - tcp release_sock() callback
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* @sk: socket
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@@ -813,7 +813,7 @@ void tcp_release_cb(struct sock *sk)
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nflags = flags & ~TCP_DEFERRED_ALL;
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} while (cmpxchg(&tp->tsq_flags, flags, nflags) != flags);
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- if (flags & (1UL << TCP_TSQ_DEFERRED))
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+ if (flags & TCPF_TSQ_DEFERRED)
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tcp_tsq_handler(sk);
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/* Here begins the tricky part :
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@@ -827,15 +827,15 @@ void tcp_release_cb(struct sock *sk)
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*/
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sock_release_ownership(sk);
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- if (flags & (1UL << TCP_WRITE_TIMER_DEFERRED)) {
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+ if (flags & TCPF_WRITE_TIMER_DEFERRED) {
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tcp_write_timer_handler(sk);
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__sock_put(sk);
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}
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- if (flags & (1UL << TCP_DELACK_TIMER_DEFERRED)) {
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+ if (flags & TCPF_DELACK_TIMER_DEFERRED) {
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tcp_delack_timer_handler(sk);
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__sock_put(sk);
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}
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- if (flags & (1UL << TCP_MTU_REDUCED_DEFERRED)) {
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+ if (flags & TCPF_MTU_REDUCED_DEFERRED) {
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inet_csk(sk)->icsk_af_ops->mtu_reduced(sk);
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__sock_put(sk);
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}
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