From: Yafang Shao <laoar.shao@gmail.com>
To: akpm@linux-foundation.org, david@redhat.com, willy@infradead.org
Cc: linux-mm@kvack.org, Yafang Shao <laoar.shao@gmail.com>
Subject: [PATCH] mm, doc: Update read_ahead_kb for MADV_HUGEPAGE
Date: Wed, 13 Nov 2024 23:07:11 +0800 [thread overview]
Message-ID: <20241113150711.1685-1-laoar.shao@gmail.com> (raw)
MADV_HUGEPAGE is a new addition to readahead with behavior distinct from
normal pages. To prevent confusion, we should update the documentation
accordingly.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
---
Documentation/ABI/stable/sysfs-block | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index cea8856f798d..7a820a7d53aa 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -594,6 +594,9 @@ Description:
[RW] Maximum number of kilobytes to read-ahead for filesystems
on this block device.
+ For MADV_HUGEPAGE, the readahead size may exceed this setting
+ since its granularity is based on the hugepage size.
+
What: /sys/block/<disk>/queue/rotational
Date: January 2009
--
2.43.5
next reply other threads:[~2024-11-13 15:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-13 15:07 Yafang Shao [this message]
2024-11-14 4:36 ` Christoph Hellwig
2024-11-14 6:06 ` Yafang Shao
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