copy: add COPY_SYNCFS flag

When copying large directory trees it should be a better idea to sync
the whole fs once when we are done instead of individually for each
file, hence add COPY_SYNCFS.

As opposed to COPY_FSYNC/COPY_FSYNC_FULL this only really applies to the
top-level directory, after completion of the whole copy.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/shared/copy.h b/src/shared/copy.h
index 81990d3743..0c81760d8f 100644
--- a/src/shared/copy.h
+++ b/src/shared/copy.h
@@ -21,6 +21,7 @@ typedef enum CopyFlags {
         COPY_HARDLINKS   = 1 << 8,  /* Try to reproduce hard links */
         COPY_FSYNC       = 1 << 9,  /* fsync() after we are done */
         COPY_FSYNC_FULL  = 1 << 10, /* fsync_full() after we are done */
+        COPY_SYNCFS      = 1 << 11, /* syncfs() the *top-level* dir after we are done */
 } CopyFlags;
 
 typedef int (*copy_progress_bytes_t)(uint64_t n_bytes, void *userdata);