We found some bugs by aio read/write and fsync test, but there's
not related operations in fsstress. So add AIO test into fsstress to
increase AIO stress test.
Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
---
V2 did below changes:
1) add aio fsync test.
2) Turn to checking the return vaule of libaio functions, not errno.
Hi Darrick,
As your suggestion, I've add io_prep_fsync to fsstress in this V2 patch.
But by my testing, it always return EINVAL, due to linux doesn't support
aio fsync.
And I've asked AIO maintainer, he said there's not a plan to support that
until now. So do you think we need to keep this io_prep_fsync test in
fsstress and set the frequency to 0 by default?
Thanks,
Zorro
ltp/fsstress.c | 214 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 214 insertions(+)
diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index e9fd276..da4f749 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -35,6 +35,10 @@
#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
#endif
+#ifdef AIO
+#include <libaio.h>
+io_context_t io_ctx;
+#endif
#ifndef FS_IOC_GETFLAGS
#define FS_IOC_GETFLAGS _IOR('f', 1, long)
@@ -51,9 +55,12 @@
#define FILELEN_MAX (32*4096)
typedef enum {
+ OP_AFSYNC,
OP_ALLOCSP,
+ OP_AREAD,
OP_ATTR_REMOVE,
OP_ATTR_SET,
+ OP_AWRITE,
OP_BULKSTAT,
OP_BULKSTAT1,
OP_CHOWN,
@@ -152,9 +159,12 @@ struct print_string {
#define MAXFSIZE ((1ULL << 63) - 1ULL)
#define MAXFSIZE32 ((1ULL << 40) - 1ULL)
+void afsync_f(int, long);
void allocsp_f(int, long);
+void aread_f(int, long);
void attr_remove_f(int, long);
void attr_set_f(int, long);
+void awrite_f(int, long);
void bulkstat_f(int, long);
void bulkstat1_f(int, long);
void chown_f(int, long);
@@ -194,9 +204,12 @@ void write_f(int, long);
opdesc_t ops[] = {
/* { OP_ENUM, "name", function, freq, iswrite }, */
+ { OP_AFSYNC, "afsync", afsync_f, 1, 1 },
{ OP_ALLOCSP, "allocsp", allocsp_f, 1, 1 },
+ { OP_AREAD, "aread", aread_f, 1, 0 },
{ OP_ATTR_REMOVE, "attr_remove", attr_remove_f, /* 1 */ 0, 1 },
{ OP_ATTR_SET, "attr_set", attr_set_f, /* 2 */ 0, 1 },
+ { OP_AWRITE, "awrite", awrite_f, 1, 1 },
{ OP_BULKSTAT, "bulkstat", bulkstat_f, 1, 0 },
{ OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0 },
{ OP_CHOWN, "chown", chown_f, 3, 1 },
@@ -577,8 +590,20 @@ int main(int argc, char **argv)
}
}
procid = i;
+#ifdef AIO
+ if (io_setup(128, &io_ctx) != 0) {
+ perror("io_setup failed");
+ exit(1);
+ }
+#endif
for (i = 0; !loops || (i < loops); i++)
doproc();
+#ifdef AIO
+ if(io_destroy(io_ctx) != 0) {
+ perror("io_destroy failed");
+ return 1;
+ }
+#endif
return 0;
}
}
@@ -1698,6 +1723,62 @@ void inode_info(char *str, size_t sz, struct stat64 *s, int verbose)
}
void
+afsync_f(int opno, long r)
+{
+#ifdef AIO
+ int e;
+ pathname_t f;
+ int fd;
+ int v;
+ struct iocb iocb;
+ struct iocb *iocbs[] = { &iocb };
+ struct io_event event;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, 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);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: afsync - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+
+ io_prep_fsync(&iocb, fd);
+ if ((e = io_submit(io_ctx, 1, iocbs)) != 1) {
+ if (v)
+ printf("%d/%d: afsync - io_submit %s %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
+ if (v)
+ printf("%d/%d: afsync - io_getevents failed %d\n",
+ procid, opno, e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ e = event.res2;
+ if (v)
+ printf("%d/%d: afsync %s %d\n", procid, opno, f.path, e);
+ free_pathname(&f);
+ close(fd);
+#endif
+}
+
+void
allocsp_f(int opno, long r)
{
int e;
@@ -1751,6 +1832,131 @@ allocsp_f(int opno, long r)
close(fd);
}
+#ifdef AIO
+void
+do_aio_rw(int opno, long r, int flags)
+{
+ __int64_t align;
+ char *buf;
+ struct dioattr diob;
+ int e;
+ pathname_t f;
+ int fd;
+ size_t len;
+ __int64_t lr;
+ off64_t off;
+ struct stat64 stb;
+ int v;
+ char st[1024];
+ char *dio_env;
+ struct iocb iocb;
+ struct io_event event;
+ struct iocb *iocbs[] = { &iocb };
+ int iswrite = (flags & (O_WRONLY | O_RDWR)) ? 1 : 0;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+ if (v)
+ printf("%d/%d: do_aio_rw - no filename\n", procid, opno);
+ free_pathname(&f);
+ return;
+ }
+ fd = open_path(&f, flags|O_DIRECT);
+ e = fd < 0 ? errno : 0;
+ check_cwd();
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ return;
+ }
+ if (fstat64(fd, &stb) < 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - fstat64 %s failed %d\n",
+ procid, opno, f.path, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ inode_info(st, sizeof(st), &stb, v);
+ if (!iswrite && stb.st_size == 0) {
+ if (v)
+ printf("%d/%d: do_aio_rw - %s%s zero size\n", procid, opno,
+ f.path, st);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if (xfsctl(f.path, fd, XFS_IOC_DIOINFO, &diob) < 0) {
+ if (v)
+ printf(
+ "%d/%d: do_aio_rw - xfsctl(XFS_IOC_DIOINFO) %s%s failed %d\n",
+ procid, opno, f.path, st, errno);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ dio_env = getenv("XFS_DIO_MIN");
+ if (dio_env)
+ diob.d_mem = diob.d_miniosz = atoi(dio_env);
+ align = (__int64_t)diob.d_miniosz;
+ lr = ((__int64_t)random() << 32) + random();
+ len = (random() % FILELEN_MAX) + 1;
+ len -= (len % align);
+ if (len <= 0)
+ len = align;
+ else if (len > diob.d_maxiosz)
+ len = diob.d_maxiosz;
+ buf = memalign(diob.d_mem, len);
+
+ if (iswrite) {
+ off = (off64_t)(lr % MIN(stb.st_size + (1024 * 1024), MAXFSIZE));
+ off -= (off % align);
+ off %= maxfsize;
+ memset(buf, nameseq & 0xff, len);
+ io_prep_pwrite(&iocb, fd, buf, len, off);
+ } else {
+ off = (off64_t)(lr % stb.st_size);
+ off -= (off % align);
+ io_prep_pread(&iocb, fd, buf, len, off);
+ }
+ if ((e = io_submit(io_ctx, 1, iocbs)) != 1) {
+ if (v)
+ printf("%d/%d: %s - io_submit failed %d\n",
+ procid, opno, iswrite ? "awrite" : "aread", e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+ if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
+ if (v)
+ printf("%d/%d: %s - io_getevents failed %d\n",
+ procid, opno, iswrite ? "awrite" : "aread", e);
+ free_pathname(&f);
+ close(fd);
+ return;
+ }
+
+ e = event.res != len ? event.res2 : 0;
+ free(buf);
+ if (v)
+ printf("%d/%d: %s %s%s [%lld,%d] %d\n",
+ procid, opno, iswrite ? "awrite" : "aread",
+ f.path, st, (long long)off, (int)len, e);
+ free_pathname(&f);
+ close(fd);
+}
+#endif
+
+void
+aread_f(int opno, long r)
+{
+#ifdef AIO
+ do_aio_rw(opno, r, O_RDONLY);
+#endif
+}
+
void
attr_remove_f(int opno, long r)
{
@@ -1855,6 +2061,14 @@ attr_set_f(int opno, long r)
}
void
+awrite_f(int opno, long r)
+{
+#ifdef AIO
+ do_aio_rw(opno, r, O_WRONLY);
+#endif
+}
+
+void
bulkstat_f(int opno, long r)
{
int count;
--
2.7.4
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