diff options
Diffstat (limited to 'debian/patches-rt/fs-aio-simple-simple-work.patch')
-rw-r--r-- | debian/patches-rt/fs-aio-simple-simple-work.patch | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/debian/patches-rt/fs-aio-simple-simple-work.patch b/debian/patches-rt/fs-aio-simple-simple-work.patch deleted file mode 100644 index 379a19c54..000000000 --- a/debian/patches-rt/fs-aio-simple-simple-work.patch +++ /dev/null @@ -1,67 +0,0 @@ -From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> -Date: Mon, 16 Feb 2015 18:49:10 +0100 -Subject: fs/aio: simple simple work -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz - -|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:768 -|in_atomic(): 1, irqs_disabled(): 0, pid: 26, name: rcuos/2 -|2 locks held by rcuos/2/26: -| #0: (rcu_callback){.+.+..}, at: [<ffffffff810b1a12>] rcu_nocb_kthread+0x1e2/0x380 -| #1: (rcu_read_lock_sched){.+.+..}, at: [<ffffffff812acd26>] percpu_ref_kill_rcu+0xa6/0x1c0 -|Preemption disabled at:[<ffffffff810b1a93>] rcu_nocb_kthread+0x263/0x380 -|Call Trace: -| [<ffffffff81582e9e>] dump_stack+0x4e/0x9c -| [<ffffffff81077aeb>] __might_sleep+0xfb/0x170 -| [<ffffffff81589304>] rt_spin_lock+0x24/0x70 -| [<ffffffff811c5790>] free_ioctx_users+0x30/0x130 -| [<ffffffff812ace34>] percpu_ref_kill_rcu+0x1b4/0x1c0 -| [<ffffffff810b1a93>] rcu_nocb_kthread+0x263/0x380 -| [<ffffffff8106e046>] kthread+0xd6/0xf0 -| [<ffffffff81591eec>] ret_from_fork+0x7c/0xb0 - -replace this preempt_disable() friendly swork. - -Reported-By: Mike Galbraith <umgwanakikbuti@gmail.com> -Suggested-by: Benjamin LaHaise <bcrl@kvack.org> -Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> ---- - fs/aio.c | 13 +++++++++++-- - 1 file changed, 11 insertions(+), 2 deletions(-) - ---- a/fs/aio.c -+++ b/fs/aio.c -@@ -127,6 +127,7 @@ struct kioctx { - long nr_pages; - - struct rcu_work free_rwork; /* see free_ioctx() */ -+ struct work_struct free_work; /* see free_ioctx() */ - - /* - * signals when all in-flight requests are done -@@ -612,9 +613,9 @@ static void free_ioctx_reqs(struct percp - * and ctx->users has dropped to 0, so we know no more kiocbs can be submitted - - * now it's safe to cancel any that need to be. - */ --static void free_ioctx_users(struct percpu_ref *ref) -+static void free_ioctx_users_work(struct work_struct *work) - { -- struct kioctx *ctx = container_of(ref, struct kioctx, users); -+ struct kioctx *ctx = container_of(work, struct kioctx, free_work); - struct aio_kiocb *req; - - spin_lock_irq(&ctx->ctx_lock); -@@ -632,6 +633,14 @@ static void free_ioctx_users(struct perc - percpu_ref_put(&ctx->reqs); - } - -+static void free_ioctx_users(struct percpu_ref *ref) -+{ -+ struct kioctx *ctx = container_of(ref, struct kioctx, users); -+ -+ INIT_WORK(&ctx->free_work, free_ioctx_users_work); -+ schedule_work(&ctx->free_work); -+} -+ - static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm) - { - unsigned i, new_nr; |