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authorYafang Shao <laoar.shao@gmail.com>2024-11-13 16:07:11 +0100
committerAndrew Morton <akpm@linux-foundation.org>2024-11-15 07:43:48 +0100
commit0740e54304dcd11cf2a8edb6764423eb2fed1c61 (patch)
tree184040182170028c8c7c1a97240d6c982987d2ce /Documentation/ABI/stable/sysfs-block
parentfs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args() (diff)
downloadlinux-0740e54304dcd11cf2a8edb6764423eb2fed1c61.tar.xz
linux-0740e54304dcd11cf2a8edb6764423eb2fed1c61.zip
mm, doc: update read_ahead_kb for MADV_HUGEPAGE
MADV_HUGEPAGE is a new addition to readahead with behavior distinct from normal pages. To prevent confusion, we should update the documentation accordingly. Link: https://lkml.kernel.org/r/20241113150711.1685-1-laoar.shao@gmail.com Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
-rw-r--r--Documentation/ABI/stable/sysfs-block3
1 files changed, 3 insertions, 0 deletions
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