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Message-Id: <1319020189-13584-7-git-send-email-dmonakhov@openvz.org>
Date: Wed, 19 Oct 2011 14:29:47 +0400
From: Dmitry Monakhov <dmonakhov@...nvz.org>
To: linux-fsdevel@...r.kernel.org, xfs@....sgi.com,
linux-ext4@...r.kernel.org, jack@...e.cz, hch@...radead.org,
aelder@....com
Cc: Dmitry Monakhov <dmonakhov@...nvz.org>
Subject: [PATCH 6/8] xfstests: add fiemap operation
Related bug: http://patchwork.ozlabs.org/patch/118863
Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
---
ltp/fsstress.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 76 insertions(+), 0 deletions(-)
diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index baccbbd..19b5858 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -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 getdents_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 },
@@ -2162,6 +2168,76 @@ 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)
--
1.7.1
--
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