This is a note to let you know that I've just added the patch titled
erofs: drop z_erofs_page_mark_eio()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
erofs-drop-z_erofs_page_mark_eio.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From [email protected] Tue Jul 22 12:00:46 2025
From: Gao Xiang <[email protected]>
Date: Tue, 22 Jul 2025 18:00:27 +0800
Subject: erofs: drop z_erofs_page_mark_eio()
To: [email protected], Greg Kroah-Hartman <[email protected]>,
Jan Kiszka <[email protected]>, Stefan Kerkmann <[email protected]>
Cc: [email protected], LKML <[email protected]>, Gao
Xiang <[email protected]>, Yue Hu <[email protected]>, Chao Yu
<[email protected]>
Message-ID: <[email protected]>
From: Gao Xiang <[email protected]>
commit 9a05c6a8bc26138d34e87b39e6a815603bc2a66c upstream.
It can be folded into z_erofs_onlinepage_endio() to simplify the code.
Reviewed-by: Yue Hu <[email protected]>
Reviewed-by: Chao Yu <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
fs/erofs/zdata.c | 29 +++++++++--------------------
1 file changed, 9 insertions(+), 20 deletions(-)
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -144,22 +144,17 @@ static inline void z_erofs_onlinepage_sp
atomic_inc((atomic_t *)&page->private);
}
-static inline void z_erofs_page_mark_eio(struct page *page)
+static void z_erofs_onlinepage_endio(struct page *page, int err)
{
- int orig;
+ int orig, v;
+
+ DBG_BUGON(!PagePrivate(page));
do {
orig = atomic_read((atomic_t *)&page->private);
- } while (atomic_cmpxchg((atomic_t *)&page->private, orig,
- orig | Z_EROFS_PAGE_EIO) != orig);
-}
-
-static inline void z_erofs_onlinepage_endio(struct page *page)
-{
- unsigned int v;
+ v = (orig - 1) | (err ? Z_EROFS_PAGE_EIO : 0);
+ } while (atomic_cmpxchg((atomic_t *)&page->private, orig, v) != orig);
- DBG_BUGON(!PagePrivate(page));
- v = atomic_dec_return((atomic_t *)&page->private);
if (!(v & ~Z_EROFS_PAGE_EIO)) {
set_page_private(page, 0);
ClearPagePrivate(page);
@@ -930,9 +925,7 @@ next_part:
goto repeat;
out:
- if (err)
- z_erofs_page_mark_eio(page);
- z_erofs_onlinepage_endio(page);
+ z_erofs_onlinepage_endio(page, err);
return err;
}
@@ -1035,9 +1028,7 @@ static void z_erofs_fill_other_copies(st
cur += len;
}
kunmap_local(dst);
- if (err)
- z_erofs_page_mark_eio(bvi->bvec.page);
- z_erofs_onlinepage_endio(bvi->bvec.page);
+ z_erofs_onlinepage_endio(bvi->bvec.page, err);
list_del(p);
kfree(bvi);
}
@@ -1205,9 +1196,7 @@ out:
/* recycle all individual short-lived pages */
if (z_erofs_put_shortlivedpage(be->pagepool, page))
continue;
- if (err)
- z_erofs_page_mark_eio(page);
- z_erofs_onlinepage_endio(page);
+ z_erofs_onlinepage_endio(page, err);
}
if (be->decompressed_pages != be->onstack_pages)
Patches currently in stable-queue which might be from
[email protected] are
queue-6.1/erofs-sunset-erofs_dbg.patch
queue-6.1/erofs-simplify-z_erofs_transform_plain.patch
queue-6.1/erofs-get-rid-of-debug_one_dentry.patch
queue-6.1/erofs-drop-z_erofs_page_mark_eio.patch
queue-6.1/erofs-address-d-cache-aliasing.patch
