Hi Andrew, After merging the akpm-current tree, today's linux-next build (arm multi_v7_defconfig) failed like this:
fs/io_uring.c: In function 'io_async_list_note':
fs/io_uring.c:931:16: error: 'VM_MAX_READAHEAD' undeclared (first use in this
function); did you mean 'VM_MAYREAD'?
max_pages = VM_MAX_READAHEAD >> (PAGE_SHIFT - 10);
^~~~~~~~~~~~~~~~
VM_MAYREAD
Caused by commit
4c416502dae2 ("mm: Refactor readahead defines in mm.h")
interacting with commit
6eff5fa16a2e ("io_uring: allow workqueue item to handle multiple buffered
requests")
from the block tree.
I have applied this merge fix patch for today:
From: Stephen Rothwell <[email protected]>
Date: Wed, 13 Feb 2019 17:21:44 +1100
Subject: [PATCH] io_uring: fix up for readahead defines refactor
Signed-off-by: Stephen Rothwell <[email protected]>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 1ff4acc9654d..c8272bc96d84 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -928,7 +928,7 @@ static void io_async_list_note(int rw, struct io_kiocb
*req, size_t len)
/* Use 8x RA size as a decent limiter for both reads/writes */
max_pages = filp->f_ra.ra_pages;
if (!max_pages)
- max_pages = VM_MAX_READAHEAD >> (PAGE_SHIFT - 10);
+ max_pages = VM_READAHEAD_PAGES;
max_pages *= 8;
/* If max pages are exceeded, reset the state */
--
2.20.1
--
Cheers,
Stephen Rothwell
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