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Use setproctitle to report progress of zfs send

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This allows parsing of zfs send progress by checking the process
title.
Doing so requires some changes to the send code in libzfs_sendrecv.c;
primarily these changes move some of the accounting around, to allow
for the code to be verbose as normal, or set the process title. Unlike
BSD, setproctitle() isn't standard in Linux; thus, borrowed it from
libbsd with slight modifications.

Authored-by: Sean Eric Fagan <sef@FreeBSD.org>
Co-authored-by: Ryan Moeller <ryan@iXsystems.com>
Co-authored-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #14376
This commit is contained in:
Ameer Hamza
2023-01-17 23:17:35 +05:00
committed by Tony Hutter
parent 164d184ed9
commit 777c98ee52
10 changed files with 438 additions and 55 deletions
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lib/libzfs_core/libzfs_core.abi
+26
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@@ -272,6 +272,8 @@
<elf-symbol name='zfs_niceraw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_nicetime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_resolve_shortname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_setproctitle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_setproctitle_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_strcmp_pathname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_strip_partition' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
<elf-symbol name='zfs_strip_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
@@ -3340,6 +3342,30 @@
<return type-id='95e97e5e'/>
</function-decl>
</abi-instr>
<abi-instr address-size='64' path='os/linux/zutil_setproctitle.c' language='LANG_C99'>
<function-decl name='warnx' visibility='default' binding='global' size-in-bits='64'>
<parameter type-id='80f4b756'/>
<parameter is-variadic='yes'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='setenv' visibility='default' binding='global' size-in-bits='64'>
<parameter type-id='80f4b756'/>
<parameter type-id='80f4b756'/>
<parameter type-id='95e97e5e'/>
<return type-id='95e97e5e'/>
</function-decl>
<function-decl name='zfs_setproctitle_init' mangled-name='zfs_setproctitle_init' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_setproctitle_init'>
<parameter type-id='95e97e5e' name='argc'/>
<parameter type-id='9b23c9ad' name='argv'/>
<parameter type-id='9b23c9ad' name='envp'/>
<return type-id='48b5725f'/>
</function-decl>
<function-decl name='zfs_setproctitle' mangled-name='zfs_setproctitle' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_setproctitle'>
<parameter type-id='80f4b756' name='fmt'/>
<parameter is-variadic='yes'/>
<return type-id='48b5725f'/>
</function-decl>
</abi-instr>
<abi-instr address-size='64' path='zutil_device_path.c' language='LANG_C99'>
<qualified-type-def type-id='26a90f95' restrict='yes' id='266fe297'/>
<qualified-type-def type-id='80f4b756' const='yes' id='b99c00c9'/>