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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-06-08 12:31:58 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2016-06-08 12:35:00 +0200 |
| commit | 5711c5f7aa2fae9f280e9659c782cc155489979c (patch) | |
| tree | 14019a32ec97554c31ef85cfd92d50a5e24c9398 | |
| parent | 2db75216ada547f40e8fd3d722a7aa43fb13ec46 (diff) | |
| download | man-pages-5711c5f7aa2fae9f280e9659c782cc155489979c.tar.gz | |
ioctl_fideduperange.2: Add VERSIONS section
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/ioctl_fideduperange.2 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/man2/ioctl_fideduperange.2 b/man2/ioctl_fideduperange.2 index f67c2dbece..c69f8c531d 100644 --- a/man2/ioctl_fideduperange.2 +++ b/man2/ioctl_fideduperange.2 @@ -156,11 +156,13 @@ Swap files cannot share storage. .B EOPNOTSUPP This can appear if the filesystem does not support deduplicating either file descriptor. -.SH CONFORMING TO -This API is Linux-specific. -This ioctl was previously known as +.SH VERSIONS +This ioctl operation first appeared in Linux 4.5. +It was previously known as .B BTRFS_IOC_FILE_EXTENT_SAME and was private to Btrfs. +.SH CONFORMING TO +This API is Linux-specific. .SH NOTES Because a copy-on-write operation requires the allocation of new storage, the .BR fallocate (2) |