zfs/module
George Wilson 493fcce9be
Provide macros for setting and getting blkptr birth times
There exist a couple of macros that are used to update the blkptr birth
times but they can often be confusing. For example, the
BP_PHYSICAL_BIRTH() macro will provide either the physical birth time
if it is set or else return back the logical birth time. The
complement to this macro is BP_SET_BIRTH() which will set the logical
birth time and set the physical birth time if they are not the same.
Consumers may get confused when they are trying to get the physical
birth time and use the BP_PHYSICAL_BIRTH() macro only to find out that
the logical birth time is what is actually returned.

This change cleans up these macros and makes them symmetrical. The same
functionally is preserved but the name is changed. Instead of calling
BP_PHYSICAL_BIRTH(), consumer can now call BP_GET_BIRTH(). In
additional to cleaning up this naming conventions, two new sets of
macros are introduced -- BP_[SET|GET]_LOGICAL_BIRTH() and
BP_[SET|GET]_PHYSICAL_BIRTH.  These new macros allow the consumer to
get and set the specific birth time.

As part of the cleanup, the unused GRID macros have been removed and
that portion of the blkptr are currently unused.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: George Wilson <gwilson@delphix.com>
Closes 
2024-03-25 15:01:54 -07:00
..
avl Suppress Clang Static Analyzer false positive in the AVL tree code. 2023-03-08 13:51:21 -08:00
icp module/icp/asm-arm/sha2: enable non-SIMD asm kernels on armv5/6 2023-12-05 12:01:09 -08:00
lua LUA: Backport CVE-2020-24370's patch 2024-02-07 11:53:05 -08:00
nvpair nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
os Fix corruption caused by mmap flushing problems 2024-03-25 14:56:49 -07:00
unicode Illumos : do_composition() needs sign awareness 2023-01-05 11:16:21 -08:00
zcommon Add slow disk diagnosis to ZED 2024-02-08 09:19:52 -08:00
zfs Provide macros for setting and getting blkptr birth times 2024-03-25 15:01:54 -07:00
zstd Resolve WS-2021-0184 vulnerability in zstd 2023-02-02 15:12:51 -08:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in ddt: lift dedup stats out to separate file 2024-02-15 11:45:05 -08:00
Makefile.bsd ddt: rework ops interface in terms of keys and values 2024-02-15 11:45:38 -08:00
Makefile.in check-zstd-symbols: also ignore __pfx_ symbols 2023-09-18 09:08:41 -07:00