exit
fi
done
-
-From 30927520dbae297182990bb21d08762bcc35ce1d Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Wed, 9 Sep 2015 21:55:07 -0700
-Subject: [PATCH] tcp_cubic: better follow cubic curve after idle period
-
-Jana Iyengar found an interesting issue on CUBIC :
-
-The epoch is only updated/reset initially and when experiencing losses.
-The delta "t" of now - epoch_start can be arbitrary large after app idle
-as well as the bic_target. Consequentially the slope (inverse of
-ca->cnt) would be really large, and eventually ca->cnt would be
-lower-bounded in the end to 2 to have delayed-ACK slow-start behavior.
-
-This particularly shows up when slow_start_after_idle is disabled
-as a dangerous cwnd inflation (1.5 x RTT) after few seconds of idle
-time.
-
-Jana initial fix was to reset epoch_start if app limited,
-but Neal pointed out it would ask the CUBIC algorithm to recalculate the
-curve so that we again start growing steeply upward from where cwnd is
-now (as CUBIC does just after a loss). Ideally we'd want the cwnd growth
-curve to be the same shape, just shifted later in time by the amount of
-the idle period.
-
-Reported-by: Jana Iyengar <jri@google.com>
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Signed-off-by: Yuchung Cheng <ycheng@google.com>
-Signed-off-by: Neal Cardwell <ncardwell@google.com>
-Cc: Stephen Hemminger <stephen@networkplumber.org>
-Cc: Sangtae Ha <sangtae.ha@gmail.com>
-Cc: Lawrence Brakmo <lawrence@brakmo.org>
-Signed-off-by: David S. Miller <davem@davemloft.net>
+From 5d12f71723762a39435d054d02bbf5fb87c5cd14 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Arkadiusz=20Mi=C5=9Bkiewicz?= <arekm@maven.pl>
+Date: Mon, 6 Feb 2017 14:45:15 +0100
+Subject: [PATCH] mac80211: Print text for disassociation reason
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+When disassociation happens only numeric reason is printed
+in ieee80211_rx_mgmt_disassoc(). Add text variant, too.
+
+Signed-off-by: Arkadiusz Miśkiewicz <arekm@maven.pl>
---
- net/ipv4/tcp_cubic.c | 16 ++++++++++++++++
- 1 file changed, 16 insertions(+)
-
-diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
-index 28011fb1..c6ded6b 100644
---- a/net/ipv4/tcp_cubic.c
-+++ b/net/ipv4/tcp_cubic.c
-@@ -151,6 +151,21 @@ static void bictcp_init(struct sock *sk)
- tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
- }
+ net/mac80211/mlme.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
+index 098ce9b179ee..fcf8d0aa66ec 100644
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -2801,8 +2801,9 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
-+static void bictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event)
-+{
-+ if (event == CA_EVENT_TX_START) {
-+ s32 delta = tcp_time_stamp - tcp_sk(sk)->lsndtime;
-+ struct bictcp *ca = inet_csk_ca(sk);
-+
-+ /* We were application limited (idle) for a while.
-+ * Shift epoch_start to keep cwnd growth to cubic curve.
-+ */
-+ if (ca->epoch_start && delta > 0)
-+ ca->epoch_start += delta;
-+ return;
-+ }
-+}
-+
- /* calculate the cubic root of x using a table lookup followed by one
- * Newton-Raphson iteration.
- * Avg err ~= 0.195%
-@@ -450,6 +465,7 @@ static struct tcp_congestion_ops cubictcp __read_mostly = {
- .cong_avoid = bictcp_cong_avoid,
- .set_state = bictcp_state,
- .undo_cwnd = bictcp_undo_cwnd,
-+ .cwnd_event = bictcp_cwnd_event,
- .pkts_acked = bictcp_acked,
- .owner = THIS_MODULE,
- .name = "cubic",
-From 7a29ac474a47eb8cf212b45917683ae89d6fa13b Mon Sep 17 00:00:00 2001
-From: Chris Mason <clm@fb.com>
-Date: Tue, 10 Nov 2015 10:10:34 +1100
-Subject: xfs: give all workqueues rescuer threads
-
-We're consistently hitting deadlocks here with XFS on recent kernels.
-After some digging through the crash files, it looks like everyone in
-the system is waiting for XFS to reclaim memory.
-
-Something like this:
-
-PID: 2733434 TASK: ffff8808cd242800 CPU: 19 COMMAND: "java"
- #0 [ffff880019c53588] __schedule at ffffffff818c4df2
- #1 [ffff880019c535d8] schedule at ffffffff818c5517
- #2 [ffff880019c535f8] _xfs_log_force_lsn at ffffffff81316348
- #3 [ffff880019c53688] xfs_log_force_lsn at ffffffff813164fb
- #4 [ffff880019c536b8] xfs_iunpin_wait at ffffffff8130835e
- #5 [ffff880019c53728] xfs_reclaim_inode at ffffffff812fd453
- #6 [ffff880019c53778] xfs_reclaim_inodes_ag at ffffffff812fd8c7
- #7 [ffff880019c53928] xfs_reclaim_inodes_nr at ffffffff812fe433
- #8 [ffff880019c53958] xfs_fs_free_cached_objects at ffffffff8130d3b9
- #9 [ffff880019c53968] super_cache_scan at ffffffff811a6f73
-#10 [ffff880019c539c8] shrink_slab at ffffffff811460e6
-#11 [ffff880019c53aa8] shrink_zone at ffffffff8114a53f
-#12 [ffff880019c53b48] do_try_to_free_pages at ffffffff8114a8ba
-#13 [ffff880019c53be8] try_to_free_pages at ffffffff8114ad5a
-#14 [ffff880019c53c78] __alloc_pages_nodemask at ffffffff8113e1b8
-#15 [ffff880019c53d88] alloc_kmem_pages_node at ffffffff8113e671
-#16 [ffff880019c53dd8] copy_process at ffffffff8104f781
-#17 [ffff880019c53ec8] do_fork at ffffffff8105129c
-#18 [ffff880019c53f38] sys_clone at ffffffff810515b6
-#19 [ffff880019c53f48] stub_clone at ffffffff818c8e4d
-
-xfs_log_force_lsn is waiting for logs to get cleaned, which is waiting
-for IO, which is waiting for workers to complete the IO which is waiting
-for worker threads that don't exist yet:
-
-PID: 2752451 TASK: ffff880bd6bdda00 CPU: 37 COMMAND: "kworker/37:1"
- #0 [ffff8808d20abbb0] __schedule at ffffffff818c4df2
- #1 [ffff8808d20abc00] schedule at ffffffff818c5517
- #2 [ffff8808d20abc20] schedule_timeout at ffffffff818c7c6c
- #3 [ffff8808d20abcc0] wait_for_completion_killable at ffffffff818c6495
- #4 [ffff8808d20abd30] kthread_create_on_node at ffffffff8106ec82
- #5 [ffff8808d20abdf0] create_worker at ffffffff8106752f
- #6 [ffff8808d20abe40] worker_thread at ffffffff810699be
- #7 [ffff8808d20abec0] kthread at ffffffff8106ef59
- #8 [ffff8808d20abf50] ret_from_fork at ffffffff818c8ac8
+ reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+
+- sdata_info(sdata, "disassociated from %pM (Reason: %u)\n",
+- mgmt->sa, reason_code);
++ sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n",
++ mgmt->sa, reason_code,
++ ieee80211_get_reason_code_string(reason_code));
+
+ ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
+
+--
+2.11.0
-I think we should be using WQ_MEM_RECLAIM to make sure this thread
-pool makes progress when we're not able to allocate new workers.
+From: Shaohua Li <shli@fb.com>
-[dchinner: make all workqueues WQ_MEM_RECLAIM]
+Basically this is a copy of commit 001e4a8775f6(ext4: implement cgroup
+writeback support). Tested with a fio test, verified writeback is
+throttled against cgroup io.max write bandwidth, also verified moving
+the fio test to another cgroup and the writeback is throttled against
+new cgroup setting.
-Signed-off-by: Chris Mason <clm@fb.com>
-Reviewed-by: Dave Chinner <dchinner@redhat.com>
-Signed-off-by: Dave Chinner <david@fromorbit.com>
+Cc: Tejun Heo <tj@kernel.org>
+Signed-off-by: Shaohua Li <shli@fb.com>
---
- fs/xfs/xfs_super.c | 7 ++++---
- 1 file changed, 4 insertions(+), 3 deletions(-)
-
+ fs/xfs/xfs_aops.c | 2 ++
+ fs/xfs/xfs_super.c | 1 +
+ 2 files changed, 3 insertions(+)
+
+diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
+index f18e593..6535054 100644
+--- a/fs/xfs/xfs_aops.c
++++ b/fs/xfs/xfs_aops.c
+@@ -630,8 +630,10 @@ xfs_add_to_ioend(
+ if (wpc->ioend)
+ list_add(&wpc->ioend->io_list, iolist);
+ wpc->ioend = xfs_alloc_ioend(inode, wpc->io_type, offset, bh);
++ wbc_init_bio(wbc, wpc->ioend->io_bio);
+ }
+
++ wbc_account_io(wbc, bh->b_page, bh->b_size);
+ /*
+ * If the buffer doesn't fit into the bio we need to allocate a new
+ * one. This shouldn't happen more than once for a given buffer.
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
-index 29531ec..65fbfb7 100644
+index 584cf2d..aea3bc2 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
-@@ -838,17 +838,18 @@ xfs_init_mount_workqueues(
- goto out_destroy_unwritten;
+@@ -1634,6 +1634,7 @@ xfs_fs_fill_super(
+ sb->s_max_links = XFS_MAXLINK;
+ sb->s_time_gran = 1;
+ set_posix_acl_flag(sb);
++ sb->s_iflags |= SB_I_CGROUPWB;
- mp->m_reclaim_workqueue = alloc_workqueue("xfs-reclaim/%s",
-- WQ_FREEZABLE, 0, mp->m_fsname);
-+ WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname);
- if (!mp->m_reclaim_workqueue)
- goto out_destroy_cil;
-
- mp->m_log_workqueue = alloc_workqueue("xfs-log/%s",
-- WQ_FREEZABLE|WQ_HIGHPRI, 0, mp->m_fsname);
-+ WQ_MEM_RECLAIM|WQ_FREEZABLE|WQ_HIGHPRI, 0,
-+ mp->m_fsname);
- if (!mp->m_log_workqueue)
- goto out_destroy_reclaim;
-
- mp->m_eofblocks_workqueue = alloc_workqueue("xfs-eofblocks/%s",
-- WQ_FREEZABLE, 0, mp->m_fsname);
-+ WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname);
- if (!mp->m_eofblocks_workqueue)
- goto out_destroy_log;
-
---
-cgit v0.11.2
-
+ /* version 5 superblocks support inode version counters. */
+ if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5)
projects / packages / kernel.git / blobdiff