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| author | Alejandro Colomar <alx@kernel.org> | 2023-03-17 17:08:01 +0100 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-03-30 15:14:55 +0200 |
| commit | 4131356cdab8d37fc395ca5466a0401c8573380c (patch) | |
| tree | 8c4c6f1c3172358b735b481cbbfdd9cc04b00ed9 /man2/ioctl_fideduperange.2 | |
| parent | fd00f831b52d61a91d59cb3b46182869145d9700 (diff) | |
| download | man-pages-4131356cdab8.tar.gz | |
man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections
- Add a new HISTORY section that covers the history of an API, both
regarding implementations and regarding old standards. This was
previously covered in VERSIONS, and in some cases in STANDARDS.
- Repurpose VERSIONS to cover differing implementations in _current_
systems.
- STANDARDS is reduced to only cover current versions of standards.
That basically means only C11 (C99 has been superseeded by C11; C17
is just a bugfix of C11, so not really a new version), and
POSIX.1-2008 (*-2001 was superseeded by *-2008; *-2017 was just a
bugfix for *-2008). The section also mentions for example 'Linux',
'GNU' or 'BSD' when a non-standard API is Linux- or GNU-only or if
it's (de-facto) standard in the BSDs.
- In some cases content that should go into one of these sections was
in NOTES. Move it from there to where it corresponds.
- In the SYNOPSIS, I added [[deprecated]] in some functions that I
found are deprecated by the relevant standards.
- A few other related changes...
Cc: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man2/ioctl_fideduperange.2')
| -rw-r--r-- | man2/ioctl_fideduperange.2 | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/man2/ioctl_fideduperange.2 b/man2/ioctl_fideduperange.2 index 117e85d73f..34623cf7b6 100644 --- a/man2/ioctl_fideduperange.2 +++ b/man2/ioctl_fideduperange.2 @@ -181,19 +181,20 @@ and .I src_fd are not on the same mounted filesystem. .SH VERSIONS -This ioctl operation first appeared in Linux 4.5. +Some filesystems may limit the amount of data that can be deduplicated in a +single call. +.SH STANDARDS +Linux. +.SH HISTORY +Linux 4.5. +.PP It was previously known as .B BTRFS_IOC_FILE_EXTENT_SAME and was private to Btrfs. -.SH STANDARDS -This API is Linux-specific. .SH NOTES Because a copy-on-write operation requires the allocation of new storage, the .BR fallocate (2) operation may unshare shared blocks to guarantee that subsequent writes will not fail because of lack of disk space. -.PP -Some filesystems may limit the amount of data that can be deduplicated in a -single call. .SH SEE ALSO .BR ioctl (2) |