search for: fb20622

...le-plugin.so file=$BLOCK -U $SOCK $ time qemu-img convert -n -f raw -O raw /var/tmp/fedora-27.img nbd:unix:$SOCK real 0m13.491s user 0m0.129s sys 0m0.612s --- plugins/file/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/plugins/file/file.c b/plugins/file/file.c index 4210adb..fb20622 100644 --- a/plugins/file/file.c +++ b/plugins/file/file.c @@ -41,6 +41,7 @@ #include <sys/types.h> #include <sys/stat.h> #include <errno.h> +#include <linux/falloc.h> /* For FALLOC_FL_* on RHEL, glibc < 2.18 */ #include <nbdkit-plugin.h> -- 2.17.1

...aligned to logical sector size. I'm not sure if nbdkit or qemu-img ensure this. - Need testing with NFS --- plugins/file/file.c | 126 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 103 insertions(+), 23 deletions(-) diff --git a/plugins/file/file.c b/plugins/file/file.c index fb20622..bce2ed1 100644 --- a/plugins/file/file.c +++ b/plugins/file/file.c @@ -33,6 +33,7 @@ #include <config.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -42,6 +43,8 @@ #include <sys/stat.h> #include <errno.h>...

This is the second version to support efficient zero for block devices on older kernels (e.g. RHEL 7.5), and file systems that do not support yet FALLOC_FS_ZERO_RANGE (e.g. NFS 4.2). Changes since v1: - Split to smaller patches - Skip linux only includes on other systems - Skip code using BLKZEROOUT if the macro is not defined - Try BLKZEROOUT only if the offset and count are aligned to device

...aligned to logical sector size. I'm not sure if nbdkit or qemu-img ensure this. - Need testing with NFS --- plugins/file/file.c | 126 ++++++++++++++++++++++++++++++++++++-------- 1 file changed, 103 insertions(+), 23 deletions(-) diff --git a/plugins/file/file.c b/plugins/file/file.c index fb20622..bce2ed1 100644 --- a/plugins/file/file.c +++ b/plugins/file/file.c @@ -33,6 +33,7 @@ #include <config.h> +#include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -42,6 +43,8 @@ #include <sys/stat.h> #include <errno.h>...