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shared: Handle filesystems that don't support hole punching in COPY_HOLES

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Daan De Meyer
2022-01-31 04:43:23 +09:00
committed by Yu Watanabe
parent 34905ff7a9
commit 5b2d0f9efd
1 changed files with 4 additions and 2 deletions
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src/shared/copy.c
+4 -2
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@@ -119,9 +119,11 @@ static int create_hole(int fd, off_t size) {
if (end < 0)
return -errno;
/* If we're not at the end of the target file, punch a hole in the existing space using fallocate(). */
/* If we're not at the end of the target file, try to punch a hole in the existing space using fallocate(). */
if (offset < end && fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, offset, MIN(size, end - offset)) < 0)
if (offset < end &&
fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, offset, MIN(size, end - offset)) < 0 &&
!ERRNO_IS_NOT_SUPPORTED(errno))
return -errno;
if (end - offset >= size) {