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-rw-r--r--internal/fusefrontend/file_allocate_truncate.go21
1 files changed, 10 insertions, 11 deletions
diff --git a/internal/fusefrontend/file_allocate_truncate.go b/internal/fusefrontend/file_allocate_truncate.go
index e735d79..b64e19b 100644
--- a/internal/fusefrontend/file_allocate_truncate.go
+++ b/internal/fusefrontend/file_allocate_truncate.go
@@ -181,18 +181,17 @@ func (f *File) truncateGrowFile(oldPlainSz uint64, newPlainSz uint64) fuse.Statu
if newPlainSz <= oldPlainSz {
log.Panicf("BUG: newSize=%d <= oldSize=%d", newPlainSz, oldPlainSz)
}
- var n1 uint64
- if oldPlainSz > 0 {
- n1 = f.contentEnc.PlainOffToBlockNo(oldPlainSz - 1)
- }
newEOFOffset := newPlainSz - 1
- n2 := f.contentEnc.PlainOffToBlockNo(newEOFOffset)
- // The file is grown within one block, no need to pad anything.
- // Write a single zero to the last byte and let doWrite figure out the RMW.
- if n1 == n2 {
- buf := make([]byte, 1)
- _, status := f.doWrite(buf, int64(newEOFOffset))
- return status
+ if oldPlainSz > 0 {
+ n1 := f.contentEnc.PlainOffToBlockNo(oldPlainSz - 1)
+ n2 := f.contentEnc.PlainOffToBlockNo(newEOFOffset)
+ // The file is grown within one block, no need to pad anything.
+ // Write a single zero to the last byte and let doWrite figure out the RMW.
+ if n1 == n2 {
+ buf := make([]byte, 1)
+ _, status := f.doWrite(buf, int64(newEOFOffset))
+ return status
+ }
}
// The truncate creates at least one new block.
//