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cmd/link: accept extra blocks in TestFallocate

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For #41127

Change-Id: I794a082299c6dce4202223197ece1864bed36810
Reviewed-on: https://go-review.googlesource.com/c/go/+/282555
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Ian Lance Taylor 2021-01-07 17:32:06 -08:00
parent ee4d32249b
commit cab1202183
1 changed files with 6 additions and 2 deletions
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8
src/cmd/link/internal/ld/fallocate_test.go
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@ -57,8 +57,12 @@ func TestFallocate(t *testing.T) {
if got := stat.Size(); got != sz { if got := stat.Size(); got != sz {
t.Errorf("unexpected file size: got %d, want %d", got, sz) t.Errorf("unexpected file size: got %d, want %d", got, sz)
} }
if got, want := stat.Sys().(*syscall.Stat_t).Blocks, (sz+511)/512; got != want { // The number of blocks must be enough for the requested size.
t.Errorf("unexpected disk usage: got %d blocks, want %d", got, want) // We used to require an exact match, but it appears that
// some file systems allocate a few extra blocks in some cases.
// See issue #41127.
if got, want := stat.Sys().(*syscall.Stat_t).Blocks, (sz+511)/512; got < want {
t.Errorf("unexpected disk usage: got %d blocks, want at least %d", got, want)
} }
out.munmap() out.munmap()
} }