diff options
| -rw-r--r-- | src/basic/copy.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/basic/copy.c b/src/basic/copy.c index 33427c6a73..cc5faa80a1 100644 --- a/src/basic/copy.c +++ b/src/basic/copy.c @@ -30,7 +30,7 @@ #define COPY_BUFFER_SIZE (16*1024) int copy_bytes(int fdf, int fdt, off_t max_bytes, bool try_reflink) { - bool try_sendfile = true; + bool try_sendfile = true, try_splice = true; int r; assert(fdf >= 0); @@ -69,7 +69,23 @@ int copy_bytes(int fdf, int fdt, off_t max_bytes, bool try_reflink) { } else if (n == 0) /* EOF */ break; else if (n > 0) - /* Succcess! */ + /* Success! */ + goto next; + } + + /* The try splice, unless we already tried */ + if (try_splice) { + n = splice(fdf, NULL, fdt, NULL, m, 0); + if (n < 0) { + if (errno != EINVAL && errno != ENOSYS) + return -errno; + + try_splice = false; + /* use fallback below */ + } else if (n == 0) /* EOF */ + break; + else if (n > 0) + /* Success! */ goto next; } |