[PATCH] ioctl_ficlonerange.2/ioctl_fideduperange.2: mention same-fs requirement
From: Darrick J. Wong <hidden>
Date: 2016-06-08 16:41:11
Also in:
linux-fsdevel, linux-man
Subsystem:
the rest · Maintainer:
Linus Torvalds
Mention that FICLONE, FICLONERANGE, and FIDEDUPERANGE all require both files to reside on the same filesystem. Signed-off-by: Darrick J. Wong <redacted> --- man2/ioctl_ficlonerange.2 | 1 + man2/ioctl_fideduperange.2 | 1 + 2 files changed, 2 insertions(+)
diff --git a/man2/ioctl_ficlonerange.2 b/man2/ioctl_ficlonerange.2
index 0cb1567..c6e0762 100644
--- a/man2/ioctl_ficlonerange.2
+++ b/man2/ioctl_ficlonerange.2@@ -36,6 +36,7 @@ file appear in the .I dest_fd file by sharing the underlying storage, which is faster than making a separate physical copy of the data. +Both files must reside within the same filesystem. If a file write should occur to a shared region, the filesystem must ensure that the changes remain private to the file being written.
diff --git a/man2/ioctl_fideduperange.2 b/man2/ioctl_fideduperange.2
index c69f8c5..44a7765 100644
--- a/man2/ioctl_fideduperange.2
+++ b/man2/ioctl_fideduperange.2@@ -34,6 +34,7 @@ file appear in the .B dest_fd file by sharing the underlying storage if the file data is identical ("deduplication"). +Both files must reside within the same filesystem. This reduces storage consumption by allowing the filesystem to store one shared copy of the data. If a file write should occur to a shared --
To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html