From 5bc2d858e1bdd4cfc10912e6e8205ac8ae341fac Mon Sep 17 00:00:00 2001 From: Michael Kerrisk Date: Thu, 12 Apr 2018 20:12:50 +0200 Subject: [PATCH] mmap.2: Clarify rationale of MAP_SYNC somewhat Signed-off-by: Michael Kerrisk --- man2/mmap.2 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/man2/mmap.2 b/man2/mmap.2 index bef8b4432..fe2267608 100644 --- a/man2/mmap.2 +++ b/man2/mmap.2 @@ -452,8 +452,9 @@ Shared file mappings with this flag provide the guarantee that while some memory is writably mapped in the address space of the process, it will be visible in the same file at the same offset even after the system crashes or is rebooted. -This allows users of such mappings to make data modifications -persistent in a more efficient way using appropriate CPU instructions. +In conjunction with the use of appropriate CPU instructions, +this provides users of such mappings with a more efficient way +of making data modifications persistent. .TP .BR MAP_UNINITIALIZED " (since Linux 2.6.33)" Don't clear anonymous pages.