On 2020-11-24 07:39, Matthew Wilcox wrote:
On Mon, Nov 23, 2020 at 10:49:38PM -0800, Chris Goldsworthy wrote:
+static void __evict_bh_lru(void *arg)
+{
+ struct bh_lru *b = &get_cpu_var(bh_lrus);
+ struct buffer_head *bh = arg;
+ int i;
+
+ for (i = 0; i < BH_LRU_SIZE; i+
On Mon, Nov 23, 2020 at 10:49:38PM -0800, Chris Goldsworthy wrote:
> +static void __evict_bh_lru(void *arg)
> +{
> + struct bh_lru *b = &get_cpu_var(bh_lrus);
> + struct buffer_head *bh = arg;
> + int i;
> +
> + for (i = 0; i < BH_LRU_SIZE; i++) {
> + if (b->bhs[i] == bh
From: Laura Abbott
When a buffer is added to the LRU list, a reference is taken which is
not dropped until the buffer is evicted from the LRU list. This is the
correct behavior, however this LRU reference will prevent the buffer
from being dropped. This means that the buffer can't actually be dro
Hi,
I've come across a problem allocating chunks of CMA memory on a system
under heavy disk access load which seems very similar to the situation
described as the rationale for this patch:
https://lkml.org/lkml/2012/9/11/335
Basically buffer headers sitting on the LRU list preventing them from
b
Hi,
On 9/14/2012 6:41 PM, Hugh Dickins wrote:
On Tue, 11 Sep 2012, Laura Abbott wrote:
When a buffer is added to the LRU list, a reference is taken which is
not dropped until the buffer is evicted from the LRU list. This is the
correct behavior, however this LRU reference will prevent the buffe
On Tue, 11 Sep 2012, Laura Abbott wrote:
> When a buffer is added to the LRU list, a reference is taken which is
> not dropped until the buffer is evicted from the LRU list. This is the
> correct behavior, however this LRU reference will prevent the buffer
> from being dropped. This means that the
When a buffer is added to the LRU list, a reference is taken which is
not dropped until the buffer is evicted from the LRU list. This is the
correct behavior, however this LRU reference will prevent the buffer
from being dropped. This means that the buffer can't actually be dropped
until it is sele
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