The patch titled
Subject: mm/filemap: pass inclusive 'end_byte' parameter to filemap_range_has_page
has been added to the -mm tree. Its filename is
mm-filemap-pass-inclusive-end_byte-parameter-to-filemap_range_has_page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-filemap-pass-inclusive-end_byte-parameter-to-filemap_range_has_page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-filemap-pass-inclusive-end_byte-parameter-to-filemap_range_has_page.patch
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------------------------------------------------------
From: zhengbin <zhengbin13@xxxxxxxxxx>
Subject: mm/filemap: pass inclusive 'end_byte' parameter to filemap_range_has_page
The 'end_byte' parameter of filemap_range_has_page is required to be
inclusive, so follow the rule.
Link: http://lkml.kernel.org/r/1548678679-18122-1-git-send-email-zhengbin13@xxxxxxxxxx
Signed-off-by: zhengbin <zhengbin13@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
Cc: Amir Goldstein <amir73il@xxxxxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Hou Tao <houtao1@xxxxxxxxxx>
Cc: zhangyi (F) <yi.zhang@xxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/filemap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/filemap.c~mm-filemap-pass-inclusive-end_byte-parameter-to-filemap_range_has_page
+++ a/mm/filemap.c
@@ -3071,7 +3071,7 @@ generic_file_direct_write(struct kiocb *
if (iocb->ki_flags & IOCB_NOWAIT) {
/* If there are pages to writeback, return */
if (filemap_range_has_page(inode->i_mapping, pos,
- pos + write_len))
+ pos + write_len - 1))
return -EAGAIN;
} else {
written = filemap_write_and_wait_range(mapping, pos,
_
Patches currently in -mm which might be from zhengbin13@xxxxxxxxxx are
mm-filemap-pass-inclusive-end_byte-parameter-to-filemap_range_has_page.patch
