[PATCH v2] man/man2/move_mount.2: document EINVAL on multiple instances
From: <hidden>
Date: 2025-10-06 11:31:32
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Luca Boccassi <redacted> open_tree() with OPEN_TREE_CLONE is needed to apply a mount multiple times, otherwise EINVAL is returned by move_mount(). Available since 6.15. Signed-off-by: Luca Boccassi <redacted> --- As requested by Aleksa on https://github.com/brauner/man-pages-md/pull/19 and based on the 'fs' branch where move_mount(2) was added v2: semantic line break, clarify purpose of mentioning a version man/man2/move_mount.2 | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/man/man2/move_mount.2 b/man/man2/move_mount.2
index 13063ac1f..968e6a81a 100644
--- a/man/man2/move_mount.2
+++ b/man/man2/move_mount.2@@ -457,6 +457,14 @@ which would otherwise cause the unbindable mounts to be propagated was attempted, but one of the listed restrictions was violated. .TP +.B EINVAL +The source mount is already mounted somewhere else. +Since Linux 6.15 it is possible to clone the mount via +.BR open_tree (2) +with +.B \%OPEN_TREE_CLONE +and use that as the source to avoid this error. +.TP .B ELOOP Too many symbolic links encountered when resolving one of
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2.47.3