diff options
Diffstat (limited to 'sys-kernel/spl/files/spl-0.6.0_rc9-alias-km-sleep-with-km-pushpage.patch')
| -rw-r--r-- | sys-kernel/spl/files/spl-0.6.0_rc9-alias-km-sleep-with-km-pushpage.patch | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/sys-kernel/spl/files/spl-0.6.0_rc9-alias-km-sleep-with-km-pushpage.patch b/sys-kernel/spl/files/spl-0.6.0_rc9-alias-km-sleep-with-km-pushpage.patch deleted file mode 100644 index fb0e5914e773..000000000000 --- a/sys-kernel/spl/files/spl-0.6.0_rc9-alias-km-sleep-with-km-pushpage.patch +++ /dev/null @@ -1,56 +0,0 @@ -From 5c072b45b66e841ebc7952db7860c2ee7b024b08 Mon Sep 17 00:00:00 2001 -From: Richard Yao <ryao@cs.stonybrook.edu> -Date: Mon, 25 Jun 2012 20:05:00 -0400 -Subject: [PATCH] Make KM_SLEEP an alias of KM_PUSHPAGE Use GFP_NOIO in - KM_SLEEP - -This should prevent direct reclaim issues without requiring -Linux-specific changes to code from Solaris. This is what is done in -FreeBSD. - -Note that a change to __taskq_dispatch() module/spl/spl-taskq.c is -needed to make this work. Changing KM_PUSHPAGE to use GFP_NOIO is fine, -but adding __GFP_HIGH to that triggers a hard-coded panic in -__taskq_dispatch() during zvol initialization. Removing the hard coded -panic has no ill effects. - -Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu> ---- - include/sys/kmem.h | 2 +- - module/spl/spl-taskq.c | 7 ++++--- - 2 files changed, 5 insertions(+), 4 deletions(-) - -diff --git a/include/sys/kmem.h b/include/sys/kmem.h -index 796af44..633278b 100644 ---- a/include/sys/kmem.h -+++ b/include/sys/kmem.h -@@ -41,7 +41,7 @@ - /* - * Memory allocation interfaces - */ --#define KM_SLEEP GFP_KERNEL /* Can sleep, never fails */ -+#define KM_SLEEP (GFP_NOIO | __GFP_HIGH) /* Can sleep, never fails */ - #define KM_NOSLEEP GFP_ATOMIC /* Can not sleep, may fail */ - #define KM_PUSHPAGE (GFP_NOIO | __GFP_HIGH) /* Use reserved memory */ - #define KM_NODEBUG __GFP_NOWARN /* Suppress warnings */ -diff --git a/module/spl/spl-taskq.c b/module/spl/spl-taskq.c -index 0c546c7..5ab387e 100644 ---- a/module/spl/spl-taskq.c -+++ b/module/spl/spl-taskq.c -@@ -255,9 +255,10 @@ - if (!(flags & (TQ_SLEEP | TQ_NOSLEEP))) - flags |= TQ_SLEEP; - -- if (unlikely(in_atomic() && (flags & TQ_SLEEP))) -- PANIC("May schedule while atomic: %s/0x%08x/%d\n", -- current->comm, preempt_count(), current->pid); -+ /* FIXME: Why does this fail when KM_SLEEP contains __GFP_HIGHMEM? */ -+ //if (unlikely(in_atomic() && (flags & TQ_SLEEP))) -+ // PANIC("May schedule while atomic: %s/0x%08x/%d\n", -+ // current->comm, preempt_count(), current->pid); - - spin_lock_irqsave(&tq->tq_lock, tq->tq_lock_flags); - --- -1.7.10 - |