[PATCH v5 1/3] man/man2/mremap.2: explicitly document the simple move operation
From: Lorenzo Stoakes <hidden>
Date: 2025-08-11 15:01:05
Also in:
linux-api, linux-mm, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
In preparation for discussing newly introduced mremap() behaviour to permit the move of multiple mappings at once, add a section to the mremap.2 man page to describe these operations in general. Signed-off-by: Lorenzo Stoakes <redacted> --- man/man2/mremap.2 | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/man/man2/mremap.2 b/man/man2/mremap.2
index 2168ca728..4e3c8e54e 100644
--- a/man/man2/mremap.2
+++ b/man/man2/mremap.2@@ -25,6 +25,20 @@ moving it at the same time (controlled by the argument and the available virtual address space). .P +Mappings can also simply be moved +(without any resizing) +by specifying equal +.I old_size +and +.I new_size +and using the +.B MREMAP_FIXED +flag +(see below). +The +.B MREMAP_DONTUNMAP +flag may also be specified. +.P .I old_address is the old address of the virtual memory block that you want to expand (or shrink).
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2.50.1