This is a note to let you know that I've just added the patch titled

    erofs: remove the occupied parameter from z_erofs_pagevec_enqueue()

to the 4.19-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-remove-the-occupied-parameter-from-z_erofs_pagevec_enqueue.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.


>From foo@baz Fri Nov 19 03:26:51 PM CET 2021
From: Gao Xiang <[email protected]>
Date: Tue, 16 Nov 2021 10:41:52 +0800
Subject: erofs: remove the occupied parameter from z_erofs_pagevec_enqueue()
To: Greg Kroah-Hartman <[email protected]>, [email protected]
Cc: [email protected], Yue Hu <[email protected]>, Gao Xiang 
<[email protected]>, Gao Xiang <[email protected]>
Message-ID: <[email protected]>

From: Yue Hu <[email protected]>

commit 7dea3de7d384f4c8156e8bd93112ba6db1eb276c upstream.

No any behavior to variable occupied in z_erofs_attach_page() which
is only caller to z_erofs_pagevec_enqueue().

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Yue Hu <[email protected]>
Reviewed-by: Gao Xiang <[email protected]>
Signed-off-by: Gao Xiang <[email protected]>
[ Gao Xiang: handle 4.19 codebase conflicts manually. ]
Signed-off-by: Gao Xiang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/staging/erofs/unzip_pagevec.h |    5 +----
 drivers/staging/erofs/unzip_vle.c     |    4 +---
 2 files changed, 2 insertions(+), 7 deletions(-)

--- a/drivers/staging/erofs/unzip_pagevec.h
+++ b/drivers/staging/erofs/unzip_pagevec.h
@@ -117,10 +117,8 @@ static inline void z_erofs_pagevec_ctor_
 static inline bool
 z_erofs_pagevec_ctor_enqueue(struct z_erofs_pagevec_ctor *ctor,
                             struct page *page,
-                            enum z_erofs_page_type type,
-                            bool *occupied)
+                            enum z_erofs_page_type type)
 {
-       *occupied = false;
        if (unlikely(ctor->next == NULL && type))
                if (ctor->index + 1 == ctor->nr)
                        return false;
@@ -135,7 +133,6 @@ z_erofs_pagevec_ctor_enqueue(struct z_er
        /* should remind that collector->next never equal to 1, 2 */
        if (type == (uintptr_t)ctor->next) {
                ctor->next = page;
-               *occupied = true;
        }
 
        ctor->pages[ctor->index++] =
--- a/drivers/staging/erofs/unzip_vle.c
+++ b/drivers/staging/erofs/unzip_vle.c
@@ -234,7 +234,6 @@ static int z_erofs_vle_work_add_page(
        enum z_erofs_page_type type)
 {
        int ret;
-       bool occupied;
 
        /* give priority for the compressed data storage */
        if (builder->role >= Z_EROFS_VLE_WORK_PRIMARY &&
@@ -242,8 +241,7 @@ static int z_erofs_vle_work_add_page(
                try_to_reuse_as_compressed_page(builder, page))
                return 0;
 
-       ret = z_erofs_pagevec_ctor_enqueue(&builder->vector,
-               page, type, &occupied);
+       ret = z_erofs_pagevec_ctor_enqueue(&builder->vector, page, type);
        builder->work->vcnt += (unsigned)ret;
 
        return ret ? 0 : -EAGAIN;


Patches currently in stable-queue which might be from 
[email protected] are

queue-4.19/lib-xz-validate-the-value-before-assigning-it-to-an-.patch
queue-4.19/erofs-fix-unsafe-pagevec-reuse-of-hooked-pclusters.patch
queue-4.19/lib-xz-avoid-overlapping-memcpy-with-invalid-input-w.patch
queue-4.19/erofs-remove-the-occupied-parameter-from-z_erofs_pagevec_enqueue.patch

Reply via email to