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growfs: do not error if filesystem is already requested size

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For some cloud/virtualization use cases it can be convenient to grow the
filesystem on boot any time the disk/partition happens to be larger, but
not fail if it remains the same size.

Continue to emit a message if we have no action to take, but exit with
status 0 if the size remains the same.

Reviewed by:	trasz
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32856

(cherry picked from commit 3f9acedb02)
This commit is contained in:
Ed Maste 2021-11-15 15:37:34 -05:00
parent 111619ff70
commit cf09094e39
1 changed files with 4 additions and 1 deletions
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5
sbin/growfs/growfs.c
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@ -1503,7 +1503,10 @@ main(int argc, char **argv)
humanize_number(newsizebuf, sizeof(newsizebuf), size,
"B", HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
errx(1, "requested size %s is not larger than the current "
if (size == (uint64_t)(osblock.fs_size * osblock.fs_fsize))
errx(0, "requested size %s is equal to the current "
"filesystem size %s", newsizebuf, oldsizebuf);
errx(1, "requested size %s is smaller than the current "
"filesystem size %s", newsizebuf, oldsizebuf);
}