diff options
| -rw-r--r-- | internal/fusefrontend/file_allocate_truncate.go | 21 |
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. // |