Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [PATCH] f2fs: restrict write IO alignment condition | Date | Fri, 10 Mar 2017 17:38:04 +0800 |
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We should only align start offset of bio with defined IO_SIZE for below conditions: a. write IOs b. Out-place-update c. non-meta page
Signed-off-by: Chao Yu <yuchao0@huawei.com> --- fs/f2fs/data.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 1375fef11146..3e6b0cc5e36a 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -395,7 +395,9 @@ int f2fs_submit_page_mbio(struct f2fs_io_info *fio) __submit_merged_bio(io); alloc_new: if (io->bio == NULL) { - if ((fio->type == DATA || fio->type == NODE) && + if (!is_read && (fio->type == DATA || fio->type == NODE) && + bio_page->mapping != META_MAPPING(sbi) && + fio->new_blkaddr != fio->old_blkaddr && fio->new_blkaddr & F2FS_IO_SIZE_MASK(sbi)) { err = -EAGAIN; if (!is_read) -- 2.8.2.295.g3f1c1d0
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