The patch titled
Subject: fs: direct-io: fix missing sdio->boundary
has been added to the -mm tree. Its filename is
fs-direct-io-fix-missing-sdio-boundary.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/fs-direct-io-fix-missing-sdio-boundary.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/fs-direct-io-fix-missing-sdio-boundary.patch
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------------------------------------------------------
From: Jack Qiu <jack.qiu@xxxxxxxxxx>
Subject: fs: direct-io: fix missing sdio->boundary
dio_send_cur_page() may clear sdio->boundary, so save it to avoid missing
a boundary.
Link: https://lkml.kernel.org/r/20210322042253.38312-1-jack.qiu@xxxxxxxxxx
Fixes: b1058b981272 ("direct-io: submit bio after boundary buffer is
added to it")
Signed-off-by: Jack Qiu <jack.qiu@xxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/direct-io.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/direct-io.c~fs-direct-io-fix-missing-sdio-boundary
+++ a/fs/direct-io.c
@@ -812,6 +812,7 @@ submit_page_section(struct dio *dio, str
struct buffer_head *map_bh)
{
int ret = 0;
+ int boundary = sdio->boundary; /* dio_send_cur_page may clear it */
if (dio->op == REQ_OP_WRITE) {
/*
@@ -850,10 +851,10 @@ submit_page_section(struct dio *dio, str
sdio->cur_page_fs_offset = sdio->block_in_file << sdio->blkbits;
out:
/*
- * If sdio->boundary then we want to schedule the IO now to
+ * If boundary then we want to schedule the IO now to
* avoid metadata seeks.
*/
- if (sdio->boundary) {
+ if (boundary) {
ret = dio_send_cur_page(dio, sdio, map_bh);
if (sdio->bio)
dio_bio_submit(dio, sdio);
_
Patches currently in -mm which might be from jack.qiu@xxxxxxxxxx are
fs-direct-io-fix-missing-sdio-boundary.patch
