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src/t_stripealign.c: Use block size reported by fstatfs()

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On ppc64le, block size reported by fstat(2) is 64k (the page size)
i.e. the "preferred I/O size". However src/t_stripealign.c requires the
actual block size of the filesystem. Hence this commit now makes use of
the block size reported by fstatfs(2) syscall.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Chandan Rajendra
2018-11-21 21:56:46 +05:30
committed by Eryu Guan
parent ded188b860
commit 89e42dcda5
1 changed files with 4 additions and 4 deletions
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src/t_stripealign.c
+4 -4
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@@ -7,7 +7,7 @@
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
@@ -31,7 +31,7 @@
int main(int argc, char ** argv)
{
struct stat sb;
struct statfs sb;
struct fiemap *fie;
struct fiemap_extent *fe;
int fd;
@@ -54,7 +54,7 @@ int main(int argc, char ** argv)
return 1;
}
ret = fstat(fd, &sb);
ret = fstatfs(fd, &sb);
if (ret) {
perror(filename);
close(fd);
@@ -101,7 +101,7 @@ int main(int argc, char ** argv)
return 1;
}
block = fie->fm_extents[0].fe_physical / sb.st_blksize;
block = fie->fm_extents[0].fe_physical / sb.f_bsize;
check:
if (block % sunit) {
printf("%s: Start block %llu not multiple of sunit %u\n",