It seems inappropriate that the current logic does not handle
filemap_fdatawrite() errors, so let's fix it.

Signed-off-by: Yangtao Li <frank.li@vivo.com>
---
 fs/f2fs/file.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 15dabeac4690..6de2f27c4eec 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4062,8 +4062,11 @@ static int f2fs_ioc_decompress_file(struct file *filp)
 		if (ret < 0)
 			break;
 
-		if (get_dirty_pages(inode) >= blk_per_seg)
-			filemap_fdatawrite(inode->i_mapping);
+		if (get_dirty_pages(inode) >= blk_per_seg) {
+			ret = filemap_fdatawrite(inode->i_mapping);
+			if (ret < 0)
+				break;
+		}
 
 		count -= len;
 		page_idx += len;
@@ -4133,8 +4136,11 @@ static int f2fs_ioc_compress_file(struct file *filp)
 		if (ret < 0)
 			break;
 
-		if (get_dirty_pages(inode) >= blk_per_seg)
-			filemap_fdatawrite(inode->i_mapping);
+		if (get_dirty_pages(inode) >= blk_per_seg) {
+			ret = filemap_fdatawrite(inode->i_mapping);
+			if (ret < 0)
+				break;
+		}
 
 		count -= len;
 		page_idx += len;
-- 
2.25.1

On 2023/3/2 17:55, Yangtao Li wrote:
> It seems inappropriate that the current logic does not handle
> filemap_fdatawrite() errors, so let's fix it.
> 
> Signed-off-by: Yangtao Li <frank.li@vivo.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@kernel.org>:

On Thu,  2 Mar 2023 17:55:09 +0800 you wrote:
> It seems inappropriate that the current logic does not handle
> filemap_fdatawrite() errors, so let's fix it.
> 
> Signed-off-by: Yangtao Li <frank.li@vivo.com>
> ---
>  fs/f2fs/file.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)

Here is the summary with links:
  - [f2fs-dev] f2fs: fix to handle filemap_fdatawrite() error in f2fs_ioc_decompress_file/f2fs_ioc_compress_file
    https://git.kernel.org/jaegeuk/f2fs/c/d15180a8d1d7

You are awesome, thank you!
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