#include <libaio.h>
io_context_t io_ctx;
#endif
+#include <sys/syscall.h>
#ifndef FS_IOC_GETFLAGS
#define FS_IOC_GETFLAGS _IOR('f', 1, long)
OP_BULKSTAT1,
OP_CHOWN,
OP_CLONERANGE,
+ OP_COPYRANGE,
OP_CREAT,
OP_DEDUPERANGE,
OP_DREAD,
OP_RMDIR,
OP_SETATTR,
OP_SETXATTR,
+ OP_SPLICE,
OP_STAT,
OP_SYMLINK,
OP_SYNC,
void bulkstat1_f(int, long);
void chown_f(int, long);
void clonerange_f(int, long);
+void copyrange_f(int, long);
void creat_f(int, long);
void deduperange_f(int, long);
void dread_f(int, long);
void rmdir_f(int, long);
void setattr_f(int, long);
void setxattr_f(int, long);
+void splice_f(int, long);
void stat_f(int, long);
void symlink_f(int, long);
void sync_f(int, long);
{ OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0 },
{ OP_CHOWN, "chown", chown_f, 3, 1 },
{ OP_CLONERANGE, "clonerange", clonerange_f, 4, 1 },
+ { OP_COPYRANGE, "copyrange", copyrange_f, 4, 1 },
{ OP_CREAT, "creat", creat_f, 4, 1 },
{ OP_DEDUPERANGE, "deduperange", deduperange_f, 4, 1},
{ OP_DREAD, "dread", dread_f, 4, 0 },
{ OP_RMDIR, "rmdir", rmdir_f, 1, 1 },
{ OP_SETATTR, "setattr", setattr_f, 0, 1 },
{ OP_SETXATTR, "setxattr", setxattr_f, 1, 1 },
+ { OP_SPLICE, "splice", splice_f, 1, 1 },
{ OP_STAT, "stat", stat_f, 1, 0 },
{ OP_SYMLINK, "symlink", symlink_f, 2, 1 },
{ OP_SYNC, "sync", sync_f, 1, 1 },
int mkdir_path(pathname_t *, mode_t);
int mknod_path(pathname_t *, mode_t, dev_t);
void namerandpad(int, char *, int);
+int open_file_or_dir(pathname_t *, int);
int open_path(pathname_t *, int);
DIR *opendir_path(pathname_t *);
void process_freq(char *);
exit(1);
}
if (logname) {
- char path[PATH_MAX];
+ char path[PATH_MAX + NAME_MAX + 1];
snprintf(path, sizeof(path), "%s/%s", rpath, logname);
if (freopen(path, "a", stdout) == NULL) {
perror("freopen logfile failed");
return 0;
#endif
if (logname) {
- char path[PATH_MAX];
+ char path[PATH_MAX + NAME_MAX + 2 + 11];
snprintf(path, sizeof(path), "%s/%s.%d",
rpath, logname, i);
if (freopen(path, "a", stdout) == NULL) {
/* attempting to append to a dir a zero length path */
if (len && *str == '/' && name->len == 0) {
fprintf(stderr, "fsstress: append_pathname failure\n");
- chdir(homedir);
+ assert(chdir(homedir) == 0);
abort();
/* NOTREACHED */
}
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = attr_list_path(&newname, buffer, buffersize, flags, cursor);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = attr_remove_path(&newname, attrname, flags);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
if (chdir(buf) == 0) {
rval = attr_set_path(&newname, attrname, attrvalue, valuelength,
flags);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
if (stat64(".", &statbuf) == 0 && statbuf.st_ino == top_ino)
return;
- chdir(homedir);
+ assert(chdir(homedir) == 0);
fprintf(stderr, "fsstress: check_cwd failure\n");
abort();
/* NOTREACHED */
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = creat_path(&newname, mode);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
}
}
errout:
- chdir("..");
+ assert(chdir("..") == 0);
free(homedir);
if (cleanup) {
+ int ret;
+
sprintf(cmd, "rm -rf %s", buf);
- system(cmd);
+ ret = system(cmd);
+ if (ret != 0)
+ perror("cleaning up");
cleanup_flist();
}
}
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = lchown_path(&newname, owner, group);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
if (strcmp(buf1, buf2) == 0) {
if (chdir(buf1) == 0) {
rval = link_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
} else {
if (strcmp(buf1, "..") == 0)
append_pathname(&newname2, name2->path);
if (chdir(buf1) == 0) {
rval = link_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
} else {
free_pathname(&newname1);
append_pathname(&newname1, name1->path);
if (chdir(buf2) == 0) {
rval = link_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
}
}
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = lstat64_path(&newname, sbuf);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = mkdir_path(&newname, mode);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = mknod_path(&newname, mode, dev);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
}
}
+int
+open_file_or_dir(pathname_t *name, int flags)
+{
+ int fd;
+
+ fd = open_path(name, flags);
+ if (fd != -1)
+ return fd;
+ if (fd == -1 && errno != EISDIR)
+ return fd;
+ /* Directories can not be opened in write mode nor direct mode. */
+ flags &= ~(O_WRONLY | O_DIRECT);
+ flags |= O_RDONLY | O_DIRECTORY;
+ return open_path(name, flags);
+}
+
int
open_path(pathname_t *name, int oflag)
{
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = open_path(&newname, oflag);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = opendir_path(&newname);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = readlink_path(&newname, lbuf, lbufsiz);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
if (strcmp(buf1, buf2) == 0) {
if (chdir(buf1) == 0) {
rval = rename_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
} else {
if (strcmp(buf1, "..") == 0)
append_pathname(&newname2, name2->path);
if (chdir(buf1) == 0) {
rval = rename_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
} else {
free_pathname(&newname1);
append_pathname(&newname1, name1->path);
if (chdir(buf2) == 0) {
rval = rename_path(&newname1, &newname2);
- chdir("..");
+ assert(chdir("..") == 0);
}
}
}
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = rmdir_path(&newname);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = stat64_path(&newname, sbuf);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = symlink_path(name1, &newname);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = truncate64_path(&newname, length);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
separate_pathname(name, buf, &newname);
if (chdir(buf) == 0) {
rval = unlink_path(&newname);
- chdir("..");
+ assert(chdir("..") == 0);
}
free_pathname(&newname);
return rval;
struct io_event event;
init_pathname(&f);
- if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (!get_fname(FT_REGFILE | FT_DIRm, r, &f, NULL, NULL, &v)) {
if (v)
printf("%d/%d: afsync - no filename\n", procid, opno);
free_pathname(&f);
return;
}
- fd = open_path(&f, O_WRONLY | O_DIRECT);
+ fd = open_file_or_dir(&f, O_WRONLY | O_DIRECT);
e = fd < 0 ? errno : 0;
check_cwd();
if (fd < 0) {
#endif
}
+/* copy some arbitrary range of f1 to f2. */
+void
+copyrange_f(
+ int opno,
+ long r)
+{
+#ifdef HAVE_COPY_FILE_RANGE
+ struct pathname fpath1;
+ struct pathname fpath2;
+ struct stat64 stat1;
+ struct stat64 stat2;
+ char inoinfo1[1024];
+ char inoinfo2[1024];
+ loff_t lr;
+ loff_t off1;
+ loff_t off2;
+ loff_t offset1;
+ loff_t offset2;
+ loff_t max_off2;
+ size_t len;
+ size_t length;
+ int tries = 0;
+ int v1;
+ int v2;
+ int fd1;
+ int fd2;
+ size_t ret = 0;
+ int e;
+
+ /* Load paths */
+ init_pathname(&fpath1);
+ if (!get_fname(FT_REGm, r, &fpath1, NULL, NULL, &v1)) {
+ if (v1)
+ printf("%d/%d: copyrange read - no filename\n",
+ procid, opno);
+ goto out_fpath1;
+ }
+
+ init_pathname(&fpath2);
+ if (!get_fname(FT_REGm, random(), &fpath2, NULL, NULL, &v2)) {
+ if (v2)
+ printf("%d/%d: copyrange write - no filename\n",
+ procid, opno);
+ goto out_fpath2;
+ }
+
+ /* Open files */
+ fd1 = open_path(&fpath1, O_RDONLY);
+ e = fd1 < 0 ? errno : 0;
+ check_cwd();
+ if (fd1 < 0) {
+ if (v1)
+ printf("%d/%d: copyrange read - open %s failed %d\n",
+ procid, opno, fpath1.path, e);
+ goto out_fpath2;
+ }
+
+ fd2 = open_path(&fpath2, O_WRONLY);
+ e = fd2 < 0 ? errno : 0;
+ check_cwd();
+ if (fd2 < 0) {
+ if (v2)
+ printf("%d/%d: copyrange write - open %s failed %d\n",
+ procid, opno, fpath2.path, e);
+ goto out_fd1;
+ }
+
+ /* Get file stats */
+ if (fstat64(fd1, &stat1) < 0) {
+ if (v1)
+ printf("%d/%d: copyrange read - fstat64 %s failed %d\n",
+ procid, opno, fpath1.path, errno);
+ goto out_fd2;
+ }
+ inode_info(inoinfo1, sizeof(inoinfo1), &stat1, v1);
+
+ if (fstat64(fd2, &stat2) < 0) {
+ if (v2)
+ printf("%d/%d: copyrange write - fstat64 %s failed %d\n",
+ procid, opno, fpath2.path, errno);
+ goto out_fd2;
+ }
+ inode_info(inoinfo2, sizeof(inoinfo2), &stat2, v2);
+
+ /* Calculate offsets */
+ len = (random() % FILELEN_MAX) + 1;
+ if (len == 0)
+ len = stat1.st_blksize;
+ if (len > stat1.st_size)
+ len = stat1.st_size;
+
+ lr = ((int64_t)random() << 32) + random();
+ if (stat1.st_size == len)
+ off1 = 0;
+ else
+ off1 = (off64_t)(lr % MIN(stat1.st_size - len, MAXFSIZE));
+ off1 %= maxfsize;
+
+ /*
+ * If srcfile == destfile, randomly generate destination ranges
+ * until we find one that doesn't overlap the source range.
+ */
+ max_off2 = MIN(stat2.st_size + (1024ULL * stat2.st_blksize), MAXFSIZE);
+ do {
+ lr = ((int64_t)random() << 32) + random();
+ off2 = (off64_t)(lr % max_off2);
+ off2 %= maxfsize;
+ } while (stat1.st_ino == stat2.st_ino && llabs(off2 - off1) < len);
+
+ /*
+ * Since len, off1 and off2 will be changed later, preserve their
+ * original values.
+ */
+ length = len;
+ offset1 = off1;
+ offset2 = off2;
+
+ while (len > 0) {
+ ret = syscall(__NR_copy_file_range, fd1, &off1, fd2, &off2,
+ len, 0);
+ if (ret < 0) {
+ if (errno != EAGAIN || tries++ >= 300)
+ break;
+ } else if (ret > len || ret == 0)
+ break;
+ else if (ret > 0)
+ len -= ret;
+ }
+ e = ret < 0 ? errno : 0;
+ if (v1 || v2) {
+ printf("%d/%d: copyrange %s%s [%lld,%lld] -> %s%s [%lld,%lld]",
+ procid, opno,
+ fpath1.path, inoinfo1,
+ (long long)offset1, (long long)length,
+ fpath2.path, inoinfo2,
+ (long long)offset2, (long long)length);
+
+ if (ret < 0)
+ printf(" error %d", e);
+ else if (len && ret > len)
+ printf(" asked for %lld, copied %lld??\n",
+ (long long)len, (long long)ret);
+ printf("\n");
+ }
+
+out_fd2:
+ close(fd2);
+out_fd1:
+ close(fd1);
+out_fpath2:
+ free_pathname(&fpath2);
+out_fpath1:
+ free_pathname(&fpath1);
+#endif
+}
+
/* dedupe some arbitrary range of f1 to f2...fn. */
void
deduperange_f(
#endif
}
+void
+splice_f(int opno, long r)
+{
+ struct pathname fpath1;
+ struct pathname fpath2;
+ struct stat64 stat1;
+ struct stat64 stat2;
+ char inoinfo1[1024];
+ char inoinfo2[1024];
+ loff_t lr;
+ loff_t off1, off2;
+ size_t len;
+ loff_t offset1, offset2;
+ size_t length;
+ size_t total;
+ int v1;
+ int v2;
+ int fd1;
+ int fd2;
+ ssize_t ret1 = 0, ret2 = 0;
+ size_t bytes;
+ int e;
+ int filedes[2];
+
+ /* Load paths */
+ init_pathname(&fpath1);
+ if (!get_fname(FT_REGm, r, &fpath1, NULL, NULL, &v1)) {
+ if (v1)
+ printf("%d/%d: splice read - no filename\n",
+ procid, opno);
+ goto out_fpath1;
+ }
+
+ init_pathname(&fpath2);
+ if (!get_fname(FT_REGm, random(), &fpath2, NULL, NULL, &v2)) {
+ if (v2)
+ printf("%d/%d: splice write - no filename\n",
+ procid, opno);
+ goto out_fpath2;
+ }
+
+ /* Open files */
+ fd1 = open_path(&fpath1, O_RDONLY);
+ e = fd1 < 0 ? errno : 0;
+ check_cwd();
+ if (fd1 < 0) {
+ if (v1)
+ printf("%d/%d: splice read - open %s failed %d\n",
+ procid, opno, fpath1.path, e);
+ goto out_fpath2;
+ }
+
+ fd2 = open_path(&fpath2, O_WRONLY);
+ e = fd2 < 0 ? errno : 0;
+ check_cwd();
+ if (fd2 < 0) {
+ if (v2)
+ printf("%d/%d: splice write - open %s failed %d\n",
+ procid, opno, fpath2.path, e);
+ goto out_fd1;
+ }
+
+ /* Get file stats */
+ if (fstat64(fd1, &stat1) < 0) {
+ if (v1)
+ printf("%d/%d: splice read - fstat64 %s failed %d\n",
+ procid, opno, fpath1.path, errno);
+ goto out_fd2;
+ }
+ inode_info(inoinfo1, sizeof(inoinfo1), &stat1, v1);
+
+ if (fstat64(fd2, &stat2) < 0) {
+ if (v2)
+ printf("%d/%d: splice write - fstat64 %s failed %d\n",
+ procid, opno, fpath2.path, errno);
+ goto out_fd2;
+ }
+ inode_info(inoinfo2, sizeof(inoinfo2), &stat2, v2);
+
+ /* Calculate offsets */
+ len = (random() % FILELEN_MAX) + 1;
+ if (len == 0)
+ len = stat1.st_blksize;
+ if (len > stat1.st_size)
+ len = stat1.st_size;
+
+ lr = ((int64_t)random() << 32) + random();
+ if (stat1.st_size == len)
+ off1 = 0;
+ else
+ off1 = (off64_t)(lr % MIN(stat1.st_size - len, MAXFSIZE));
+ off1 %= maxfsize;
+
+ /*
+ * splice can overlap write, so the offset of the target file can be
+ * any number. But to avoid too large offset, add a clamp of 1024 blocks
+ * past the current dest file EOF
+ */
+ lr = ((int64_t)random() << 32) + random();
+ off2 = (off64_t)(lr % MIN(stat2.st_size + (1024ULL * stat2.st_blksize), MAXFSIZE));
+
+ /*
+ * Since len, off1 and off2 will be changed later, preserve their
+ * original values.
+ */
+ length = len;
+ offset1 = off1;
+ offset2 = off2;
+
+ /* Pipe initialize */
+ if (pipe(filedes) < 0) {
+ if (v1 || v2) {
+ printf("%d/%d: splice - pipe failed %d\n",
+ procid, opno, errno);
+ goto out_fd2;
+ }
+ }
+
+ bytes = 0;
+ total = 0;
+ while (len > 0) {
+ /* move to pipe buffer */
+ ret1 = splice(fd1, &off1, filedes[1], NULL, len, 0);
+ if (ret1 <= 0) {
+ break;
+ }
+ bytes = ret1;
+
+ /* move from pipe buffer to dst file */
+ while (bytes > 0) {
+ ret2 = splice(filedes[0], NULL, fd2, &off2, bytes, 0);
+ if (ret2 < 0) {
+ break;
+ }
+ bytes -= ret2;
+ }
+ if (ret2 < 0)
+ break;
+
+ len -= ret1;
+ total += ret1;
+ }
+
+ if (ret1 < 0 || ret2 < 0)
+ e = errno;
+ else
+ e = 0;
+ if (v1 || v2) {
+ printf("%d/%d: splice %s%s [%lld,%lld] -> %s%s [%lld,%lld] %d",
+ procid, opno,
+ fpath1.path, inoinfo1, (long long)offset1, (long long)length,
+ fpath2.path, inoinfo2, (long long)offset2, (long long)length, e);
+
+ if (length && length > total)
+ printf(" asked for %lld, spliced %lld??\n",
+ (long long)length, (long long)total);
+ printf("\n");
+ }
+
+ close(filedes[0]);
+ close(filedes[1]);
+out_fd2:
+ close(fd2);
+out_fd1:
+ close(fd1);
+out_fpath2:
+ free_pathname(&fpath2);
+out_fpath1:
+ free_pathname(&fpath1);
+}
+
void
creat_f(int opno, long r)
{
int v;
init_pathname(&f);
- if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (!get_fname(FT_REGFILE | FT_DIRm, r, &f, NULL, NULL, &v)) {
if (v)
printf("%d/%d: fsync - no filename\n", procid, opno);
free_pathname(&f);
return;
}
- fd = open_path(&f, O_WRONLY);
+ fd = open_file_or_dir(&f, O_WRONLY);
e = fd < 0 ? errno : 0;
check_cwd();
if (fd < 0) {