Hi,
Filipe David Manana <fdmanana@xxxxxxxxx> writes:
> On Thu, Aug 21, 2014 at 1:07 PM, Naohiro Aota <naota@xxxxxxxxx> wrote:
>> free_some_buffer() should not free dirty extent buffers. They should be
>> left for later commit.
>>
>> Signed-off-by: Naohiro Aota <naota@xxxxxxxxx>
>> ---
>> extent_io.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/extent_io.c b/extent_io.c
>> index a127e54..8a668be 100644
>> --- a/extent_io.c
>> +++ b/extent_io.c
>> @@ -552,7 +552,7 @@ static int free_some_buffers(struct extent_io_tree *tree)
>>
>> list_for_each_safe(node, next, &tree->lru) {
>> eb = list_entry(node, struct extent_buffer, lru);
>> - if (eb->refs == 1) {
>> + if (eb->refs == 1 && !(eb->flags && EXTENT_DIRTY)) {
>
> Hi,
>
> Did you meant bitwise and (&) and not logical and (&&) right?
Oops, you're right. Following is the new patch.
>From 0e1a49216d40b44909cdfacd5cd9a13aa796db41 Mon Sep 17 00:00:00 2001
From: Naohiro Aota <naota@xxxxxxxxx>
Date: Mon, 25 Aug 2014 14:03:59 +0900
Subject: [PATCH] btrfs-progs: Do not free dirty extent buffer
free_some_buffer() should not free dirty extent buffers. They are left
to be committed.
Signed-off-by: Naohiro Aota <naota@xxxxxxxxx>
---
extent_io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/extent_io.c b/extent_io.c
index a127e54..1df377d 100644
--- a/extent_io.c
+++ b/extent_io.c
@@ -552,7 +552,7 @@ static int free_some_buffers(struct extent_io_tree *tree)
list_for_each_safe(node, next, &tree->lru) {
eb = list_entry(node, struct extent_buffer, lru);
- if (eb->refs == 1) {
+ if (eb->refs == 1 && !(eb->flags & EXTENT_DIRTY)) {
free_extent_buffer(eb);
if (tree->cache_size < cache_hard_max)
break;
--
2.0.4
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