Re: [f2fs-dev] [PATCH v2] f2fs: retry to update the inode page given EIO

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On 2023/1/13 8:01, Jaegeuk Kim wrote:
On 01/12, Chao Yu wrote:
On 2023/1/12 2:50, Jaegeuk Kim wrote:
On 01/11, Chao Yu wrote:
On 2023/1/11 9:20, Jaegeuk Kim wrote:
In f2fs_update_inode_page, f2fs_get_node_page handles EIO along with
f2fs_handle_page_eio that stops checkpoint, if the disk couldn't be recovered.
As a result, we don't need to stop checkpoint right away given single EIO.

f2fs_handle_page_eio() only covers the case that EIO occurs on the same
page, should we cover the case EIO occurs on different pages?

Which case are you looking at?

- __get_node_page(PageA)		- __get_node_page(PageB)
  - f2fs_handle_page_eio
   - sbi->page_eio_ofs[type] = PageA->index
					 - f2fs_handle_page_eio
					  - sbi->page_eio_ofs[type] = PageB->index

In such race case, it may has low probability to set CP_ERROR_FLAG as we expect?

Do you see that case in products?

Not yet.

I'm trying to avoid setting CP_ERROR_FLAG here.

Copied, how about using the same logic for node page as meta page, like
we did in f2fs_get_meta_page_retry()?

Thanks,



Thanks,



Thanks,


Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Randall Huang <huangrandall@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---

    Change log from v1:
     - fix a bug

    fs/f2fs/inode.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index ff6cf66ed46b..2ed7a621fdf1 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -719,7 +719,7 @@ void f2fs_update_inode_page(struct inode *inode)
    	if (IS_ERR(node_page)) {
    		int err = PTR_ERR(node_page);
-		if (err == -ENOMEM) {
+		if (err == -ENOMEM || (err == -EIO && !f2fs_cp_error(sbi))) {
    			cond_resched();
    			goto retry;
    		} else if (err != -ENOENT) {



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