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xfstests: add fiemap operation to fsstress

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Related bug: http://patchwork.ozlabs.org/patch/118863

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Dmitry Monakhov
2011-11-03 21:55:49 +04:00
committed by Christoph Hellwig
parent 96fb9f93ca
commit 32553be2e4
1 changed files with 76 additions and 0 deletions
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ltp/fsstress.c
+76
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@@ -24,6 +24,9 @@
#ifdef HAVE_ATTR_ATTRIBUTES_H
#include <attr/attributes.h>
#endif
#ifdef HAVE_LINUX_FIEMAP_H
#include <linux/fiemap.h>
#endif
#ifdef FALLOCATE
#include <linux/falloc.h>
#ifndef FALLOC_FL_PUNCH_HOLE
@@ -65,6 +68,7 @@ typedef enum {
OP_DWRITE,
OP_FALLOCATE,
OP_FDATASYNC,
OP_FIEMAP,
OP_FREESP,
OP_FSYNC,
OP_GETATTR,
@@ -149,6 +153,7 @@ void dread_f(int, long);
void dwrite_f(int, long);
void fallocate_f(int, long);
void fdatasync_f(int, long);
void fiemap_f(int, long);
void freesp_f(int, long);
void fsync_f(int, long);
void getattr_f(int, long);
@@ -184,6 +189,7 @@ opdesc_t ops[] = {
{ OP_DWRITE, "dwrite", dwrite_f, 4, 1 },
{ OP_FALLOCATE, "fallocate", fallocate_f, 1, 1 },
{ OP_FDATASYNC, "fdatasync", fdatasync_f, 1, 1 },
{ OP_FIEMAP, "fiemap", fiemap_f, 1, 1 },
{ OP_FREESP, "freesp", freesp_f, 1, 1 },
{ OP_FSYNC, "fsync", fsync_f, 1, 1 },
{ OP_GETATTR, "getattr", getattr_f, 1, 0 },
@@ -2130,6 +2136,76 @@ fdatasync_f(int opno, long r)
free_pathname(&f);
close(fd);
}
void
fiemap_f(int opno, long r)
{
#ifdef HAVE_LINUX_FIEMAP_H
int e;
pathname_t f;
int fd;
__int64_t lr;
off64_t off;
struct stat64 stb;
int v;
char st[1024];
int blocks_to_map;
struct fiemap *fiemap;
init_pathname(&f);
if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
if (v)
printf("%d/%d: fiemap - no filename\n", procid, opno);
free_pathname(&f);
return;
}
fd = open_path(&f, O_RDWR);
e = fd < 0 ? errno : 0;
check_cwd();
if (fd < 0) {
if (v)
printf("%d/%d: fiemap - open %s failed %d\n",
procid, opno, f.path, e);
free_pathname(&f);
return;
}
if (fstat64(fd, &stb) < 0) {
if (v)
printf("%d/%d: fiemap - fstat64 %s failed %d\n",
procid, opno, f.path, errno);
free_pathname(&f);
close(fd);
return;
}
inode_info(st, sizeof(st), &stb, v);
blocks_to_map = random() & 0xffff;
fiemap = (struct fiemap *)malloc(sizeof(struct fiemap) +
(blocks_to_map * sizeof(struct fiemap_extent)));
if (!fiemap) {
if (v)
printf("%d/%d: malloc failed \n", procid, opno);
free_pathname(&f);
close(fd);
return;
}
lr = ((__int64_t)random() << 32) + random();
off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
off %= maxfsize;
fiemap->fm_flags = random() & (FIEMAP_FLAGS_COMPAT | 0x10000);
fiemap->fm_extent_count = blocks_to_map;
fiemap->fm_mapped_extents = random() & 0xffff;
fiemap->fm_start = off;
fiemap->fm_length = ((__int64_t)random() << 32) + random();
e = ioctl(fd, FS_IOC_FIEMAP, (unsigned long)fiemap);
if (v)
printf("%d/%d: ioctl(FIEMAP) %s%s %lld %lld %x %d\n",
procid, opno, f.path, st, (long long)fiemap->fm_start,
(long long) fiemap->fm_length, fiemap->fm_flags, e);
free(fiemap);
free_pathname(&f);
close(fd);
#endif
}
void
freesp_f(int opno, long r)