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From: Huang Jianan <huangjianan@oppo.com>
To: huangjianan@oppo.com
Cc: guoweichao@oppo.com, linux-erofs@lists.ozlabs.org,
	linux-kernel@vger.kernel.org, zhangshiming@oppo.com
Subject: [PATCH v5 1/2] erofs: avoid memory allocation failure during rolling decompression
Date: Fri,  5 Mar 2021 17:58:39 +0800	[thread overview]
Message-ID: <20210305095840.31025-1-huangjianan@oppo.com> (raw)
In-Reply-To: <20210305062219.557128-1-huangjianan@oppo.com>

Currently, err would be treated as io error. Therefore, it'd be
better to ensure memory allocation during rolling decompression
to avoid such io error.

In the long term, we might consider adding another !Uptodate case
for such case.

Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
---
 fs/erofs/decompressor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 1cb1ffd10569..3d276a8aad86 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -73,7 +73,8 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 			victim = availables[--top];
 			get_page(victim);
 		} else {
-			victim = erofs_allocpage(pagepool, GFP_KERNEL);
+			victim = erofs_allocpage(pagepool,
+						 GFP_KERNEL | __GFP_NOFAIL);
 			if (!victim)
 				return -ENOMEM;
 			set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE);
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Huang Jianan via Linux-erofs <linux-erofs@lists.ozlabs.org>
To: huangjianan@oppo.com
Cc: zhangshiming@oppo.com, guoweichao@oppo.com,
	linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 1/2] erofs: avoid memory allocation failure during rolling decompression
Date: Fri,  5 Mar 2021 17:58:39 +0800	[thread overview]
Message-ID: <20210305095840.31025-1-huangjianan@oppo.com> (raw)
In-Reply-To: <20210305062219.557128-1-huangjianan@oppo.com>

Currently, err would be treated as io error. Therefore, it'd be
better to ensure memory allocation during rolling decompression
to avoid such io error.

In the long term, we might consider adding another !Uptodate case
for such case.

Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
---
 fs/erofs/decompressor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 1cb1ffd10569..3d276a8aad86 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -73,7 +73,8 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 			victim = availables[--top];
 			get_page(victim);
 		} else {
-			victim = erofs_allocpage(pagepool, GFP_KERNEL);
+			victim = erofs_allocpage(pagepool,
+						 GFP_KERNEL | __GFP_NOFAIL);
 			if (!victim)
 				return -ENOMEM;
 			set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE);
-- 
2.25.1


  parent reply	other threads:[~2021-03-05 10:04 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-05  6:22 [PATCH 1/2] erofs: avoid memory allocation failure during rolling decompression Huang Jianan
2021-03-05  6:22 ` Huang Jianan via Linux-erofs
2021-03-05  6:22 ` [PATCH 2/2] erofs: decompress in endio if possible Huang Jianan
2021-03-05  6:22   ` Huang Jianan via Linux-erofs
2021-03-05  6:41   ` Gao Xiang
2021-03-05  6:41     ` Gao Xiang
2021-03-05  8:21   ` kernel test robot
2021-03-05  8:21     ` kernel test robot
2021-03-05  8:21     ` kernel test robot
2021-03-05  6:45 ` [PATCH 1/2] erofs: avoid memory allocation failure during rolling decompression Gao Xiang
2021-03-05  6:45   ` Gao Xiang
2021-03-05  9:58 ` Huang Jianan [this message]
2021-03-05  9:58   ` [PATCH v5 " Huang Jianan via Linux-erofs
2021-03-05  9:58   ` [PATCH v5 2/2] erofs: decompress in endio if possible Huang Jianan
2021-03-05  9:58     ` Huang Jianan via Linux-erofs
2021-03-15 11:28     ` Gao Xiang
2021-03-15 11:28       ` Gao Xiang
2021-03-15 11:24   ` [PATCH v5 1/2] erofs: avoid memory allocation failure during rolling decompression Gao Xiang
2021-03-15 11:24     ` Gao Xiang
2021-03-16  1:11   ` Chao Yu
2021-03-16  1:11     ` Chao Yu
2021-03-16  1:29     ` Gao Xiang

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