diff mbox series

[1/6] fsx: add clone range

Message ID 154215238338.21151.852724936803809717.stgit@magnolia (mailing list archive)
State New, archived
Headers show
Series xfstests: add copy/dedupe/clone to fsx/fsstress | expand

Commit Message

Darrick J. Wong Nov. 13, 2018, 11:39 p.m. UTC
From: Darrick J. Wong <darrick.wong@oracle.com>

Add support for FICLONERANGE to fsx.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 ltp/fsx.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 158 insertions(+), 24 deletions(-)

Comments

Darrick J. Wong Nov. 16, 2018, 7:26 p.m. UTC | #1
On Tue, Nov 13, 2018 at 03:39:43PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Add support for FICLONERANGE to fsx.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
>  ltp/fsx.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
>  1 file changed, 158 insertions(+), 24 deletions(-)
> 
> 
> diff --git a/ltp/fsx.c b/ltp/fsx.c
> index b0157ba3..2b0a2b28 100644
> --- a/ltp/fsx.c
> +++ b/ltp/fsx.c
> @@ -88,25 +88,28 @@ int			logcount = 0;	/* total ops */
>   * mode being run.
>   */
>  
> -/* common operations */
> -#define	OP_READ		0
> -#define OP_WRITE	1
> -#define OP_MAPREAD	2
> -#define OP_MAPWRITE	3
> -#define OP_MAX_LITE	4
> -
> -/* !lite operations */
> -#define OP_TRUNCATE		4
> -#define OP_FALLOCATE		5
> -#define OP_PUNCH_HOLE		6
> -#define OP_ZERO_RANGE		7
> -#define OP_COLLAPSE_RANGE	8
> -#define OP_INSERT_RANGE	9
> -#define OP_MAX_FULL		10
> -
> -/* integrity operations */
> -#define OP_FSYNC		10
> -#define OP_MAX_INTEGRITY	11
> +enum {
> +	/* common operations */
> +	OP_READ = 0,
> +	OP_WRITE,
> +	OP_MAPREAD,
> +	OP_MAPWRITE,
> +	OP_MAX_LITE,
> +
> +	/* !lite operations */
> +	OP_TRUNCATE = OP_MAX_LITE,
> +	OP_FALLOCATE,
> +	OP_PUNCH_HOLE,
> +	OP_ZERO_RANGE,
> +	OP_COLLAPSE_RANGE,
> +	OP_INSERT_RANGE,
> +	OP_CLONE_RANGE,
> +	OP_MAX_FULL,
> +
> +	/* integrity operations */
> +	OP_FSYNC = OP_MAX_FULL,
> +	OP_MAX_INTEGRITY,
> +};
>  
>  #undef PAGE_SIZE
>  #define PAGE_SIZE       getpagesize()
> @@ -160,6 +163,7 @@ int     punch_hole_calls = 1;           /* -H flag disables */
>  int     zero_range_calls = 1;           /* -z flag disables */
>  int	collapse_range_calls = 1;	/* -C flag disables */
>  int	insert_range_calls = 1;		/* -I flag disables */
> +int	remap_calls = 1;		/* -J flag disables */
>  int 	mapped_reads = 1;		/* -R flag disables it */
>  int	integrity = 0;			/* -i flag */
>  int	fsxgoodfd = 0;
> @@ -254,6 +258,7 @@ static const char *op_names[] = {
>  	[OP_ZERO_RANGE] = "zero_range",
>  	[OP_COLLAPSE_RANGE] = "collapse_range",
>  	[OP_INSERT_RANGE] = "insert_range",
> +	[OP_CLONE_RANGE] = "clone_range",
>  	[OP_FSYNC] = "fsync",
>  };
>  
> @@ -275,6 +280,25 @@ static int op_code(const char *name)
>  	return -1;
>  }
>  
> +void
> +log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
> +{
> +	struct log_entry *le;
> +
> +	le = &oplog[logptr];
> +	le->operation = operation;
> +	if (closeopen)
> +		flags |= FL_CLOSE_OPEN;
> +	le->args[0] = arg0;
> +	le->args[1] = arg1;
> +	le->args[2] = arg2;

I would like to withdraw this patch so that I can add a fourth args[]
slot so that we can maintain the convention of printing the
pre-operation file size after the other operation arguments.  This will
make tracking the location of EOF through an fsxops file easier.

--D

> +	le->flags = flags;
> +	logptr++;
> +	logcount++;
> +	if (logptr >= LOGSIZE)
> +		logptr = 0;
> +}
> +
>  void
>  log4(int operation, int arg0, int arg1, enum opflags flags)
>  {
> @@ -294,7 +318,6 @@ log4(int operation, int arg0, int arg1, enum opflags flags)
>  		logptr = 0;
>  }
>  
> -
>  void
>  logdump(void)
>  {
> @@ -418,6 +441,13 @@ logdump(void)
>  			if (overlap)
>  				prt("\t******IIII");
>  			break;
> +		case OP_CLONE_RANGE:
> +			prt("CLONE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x",
> +			    lp->args[0], lp->args[0] + lp->args[1] - 1,
> +			    lp->args[1], lp->args[2]);
> +			if (overlap)
> +				prt("\t******IIII");
> +			break;
>  		case OP_FSYNC:
>  			prt("FSYNC");
>  			break;
> @@ -1218,6 +1248,73 @@ do_insert_range(unsigned offset, unsigned length)
>  }
>  #endif
>  
> +#ifdef FICLONERANGE
> +void
> +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> +{
> +	struct file_clone_range	fcr;
> +
> +	if (length == 0) {
> +		if (!quiet && testcalls > simulatedopcount)
> +			prt("skipping zero length clone range\n");
> +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> +		return;
> +	}
> +
> +	if ((loff_t)offset >= file_size) {
> +		if (!quiet && testcalls > simulatedopcount)
> +			prt("skipping clone range behind EOF\n");
> +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> +		return;
> +	}
> +
> +	log5(OP_CLONE_RANGE, offset, length, dest, FL_NONE);
> +
> +	if (testcalls <= simulatedopcount)
> +		return;
> +
> +	if ((progressinterval && testcalls % progressinterval == 0) ||
> +	    (debug && (monitorstart == -1 || monitorend == -1 ||
> +		       dest <= monitorstart || dest + length <= monitorend))) {
> +		prt("%lu clone\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
> +			testcalls, offset, offset+length, length, dest);
> +	}
> +
> +	fcr.src_fd = fd;
> +	fcr.src_offset = offset;
> +	fcr.src_length = length;
> +	fcr.dest_offset = dest;
> +
> +	if (ioctl(fd, FICLONERANGE, &fcr) == -1) {
> +		if (errno == EOPNOTSUPP || errno == ENOTTY) {
> +			if (!quiet && testcalls > simulatedopcount)
> +				prt("skipping unsupported clone range\n");
> +			logptr--;
> +			log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> +			return;
> +		}
> +
> +		prt("clone range: 0x%x to 0x%x at 0x%x\n", offset,
> +				offset + length, dest);
> +		prterr("do_clone_range: FICLONERANGE");
> +		report_failure(161);
> +	}
> +
> +	memcpy(good_buf + dest, good_buf + offset, length);
> +	if (dest > file_size)
> +		memset(good_buf + file_size, '\0', dest - file_size);
> +	if (dest + length > file_size)
> +		file_size = dest + length;
> +}
> +
> +#else
> +void
> +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> +{
> +	return;
> +}
> +#endif
> +
>  #ifdef HAVE_LINUX_FALLOC_H
>  /* fallocate is basically a no-op unless extending, then a lot like a truncate */
>  void
> @@ -1374,6 +1471,7 @@ cleanup(int sig)
>  static int
>  read_op(struct log_entry *log_entry)
>  {
> +	char *end;
>  	char line[256];
>  
>  	memset(log_entry, 0, sizeof(*log_entry));
> @@ -1404,8 +1502,6 @@ read_op(struct log_entry *log_entry)
>  		if (log_entry->operation == -1)
>  			goto fail;
>  		for (i = 0; i < 3; i++) {
> -			char *end;
> -
>  			str = strtok(NULL, " \t\n");
>  			if (!str)
>  				goto fail;
> @@ -1438,7 +1534,7 @@ read_op(struct log_entry *log_entry)
>  int
>  test(void)
>  {
> -	unsigned long	offset;
> +	unsigned long	offset, offset2;
>  	unsigned long	size;
>  	unsigned long	rv;
>  	unsigned long	op;
> @@ -1469,6 +1565,7 @@ test(void)
>  			op = log_entry.operation;
>  			offset = log_entry.args[0];
>  			size = log_entry.args[1];
> +			offset2 = log_entry.args[2];
>  			closeopen = !!(log_entry.flags & FL_CLOSE_OPEN);
>  			keep_size = !!(log_entry.flags & FL_KEEP_SIZE);
>  			goto have_op;
> @@ -1481,6 +1578,7 @@ test(void)
>  		closeopen = (rv >> 3) < (1 << 28) / closeprob;
>  
>  	offset = random();
> +	offset2 = 0;
>  	size = maxoplen;
>  	if (randomoplen)
>  		size = random() % (maxoplen + 1);
> @@ -1506,6 +1604,17 @@ test(void)
>  		if (zero_range_calls && size && keep_size_calls)
>  			keep_size = random() % 2;
>  		break;
> +	case OP_CLONE_RANGE:
> +		TRIM_OFF_LEN(offset, size, file_size);
> +		offset = offset & ~(block_size - 1);
> +		size = size & ~(block_size - 1);
> +		do {
> +			offset2 = random();
> +			TRIM_OFF(offset2, maxfilelen);
> +			offset2 = offset2 & ~(block_size - 1);
> +		} while (llabs(offset2 - offset) < size ||
> +			 offset2 + size > maxfilelen);
> +		break;
>  	}
>  
>  have_op:
> @@ -1549,6 +1658,12 @@ test(void)
>  			goto out;
>  		}
>  		break;
> +	case OP_CLONE_RANGE:
> +		if (!remap_calls) {
> +			log5(op, offset, size, offset2, FL_SKIPPED);
> +			goto out;
> +		}
> +		break;
>  	}
>  
>  	switch (op) {
> @@ -1615,6 +1730,18 @@ test(void)
>  
>  		do_insert_range(offset, size);
>  		break;
> +	case OP_CLONE_RANGE:
> +		if (size == 0) {
> +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> +			goto out;
> +		}
> +		if (offset2 + size > maxfilelen) {
> +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> +			goto out;
> +		}
> +
> +		do_clone_range(offset, size, offset2);
> +		break;
>  	case OP_FSYNC:
>  		dofsync();
>  		break;
> @@ -1637,7 +1764,7 @@ void
>  usage(void)
>  {
>  	fprintf(stdout, "usage: %s",
> -		"fsx [-dknqxAFLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
> +		"fsx [-dknqxAFJLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
>  	-b opnum: beginning operation number (default 1)\n\
>  	-c P: 1 in P chance of file close+open at each op (default infinity)\n\
>  	-d: debug output for all operations\n\
> @@ -1678,6 +1805,10 @@ usage(void)
>  #ifdef FALLOC_FL_INSERT_RANGE
>  "	-I: Do not use insert range calls\n"
>  #endif
> +#if defined(FICLONERANGE) || defined(FIDEDUPERANGE) || \
> +    defined(HAVE_COPY_FILE_RANGE)
> +"	-J: Do not use clone/dedupe/copy range calls\n"
> +#endif
>  "	-L: fsxLite - no file creations & no file size changes\n\
>  	-N numops: total # operations to do (default infinity)\n\
>  	-O: use oplen (see -o flag) for every op (default random)\n\
> @@ -2010,6 +2141,9 @@ main(int argc, char **argv)
>  		case 'I':
>  			insert_range_calls = 0;
>  			break;
> +		case 'J':
> +			remap_calls = 0;
> +			break;
>  		case 'L':
>  		        lite = 1;
>  			o_flags &= ~(O_CREAT|O_TRUNC);
>
Eryu Guan Nov. 18, 2018, 1:51 p.m. UTC | #2
On Fri, Nov 16, 2018 at 11:26:26AM -0800, Darrick J. Wong wrote:
> On Tue, Nov 13, 2018 at 03:39:43PM -0800, Darrick J. Wong wrote:
> > From: Darrick J. Wong <darrick.wong@oracle.com>
> > 
> > Add support for FICLONERANGE to fsx.
> > 
> > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> > ---
> >  ltp/fsx.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
> >  1 file changed, 158 insertions(+), 24 deletions(-)
> > 
> > 
> > diff --git a/ltp/fsx.c b/ltp/fsx.c
> > index b0157ba3..2b0a2b28 100644
> > --- a/ltp/fsx.c
> > +++ b/ltp/fsx.c
> > @@ -88,25 +88,28 @@ int			logcount = 0;	/* total ops */
> >   * mode being run.
> >   */
> >  
> > -/* common operations */
> > -#define	OP_READ		0
> > -#define OP_WRITE	1
> > -#define OP_MAPREAD	2
> > -#define OP_MAPWRITE	3
> > -#define OP_MAX_LITE	4
> > -
> > -/* !lite operations */
> > -#define OP_TRUNCATE		4
> > -#define OP_FALLOCATE		5
> > -#define OP_PUNCH_HOLE		6
> > -#define OP_ZERO_RANGE		7
> > -#define OP_COLLAPSE_RANGE	8
> > -#define OP_INSERT_RANGE	9
> > -#define OP_MAX_FULL		10
> > -
> > -/* integrity operations */
> > -#define OP_FSYNC		10
> > -#define OP_MAX_INTEGRITY	11
> > +enum {
> > +	/* common operations */
> > +	OP_READ = 0,
> > +	OP_WRITE,
> > +	OP_MAPREAD,
> > +	OP_MAPWRITE,
> > +	OP_MAX_LITE,
> > +
> > +	/* !lite operations */
> > +	OP_TRUNCATE = OP_MAX_LITE,
> > +	OP_FALLOCATE,
> > +	OP_PUNCH_HOLE,
> > +	OP_ZERO_RANGE,
> > +	OP_COLLAPSE_RANGE,
> > +	OP_INSERT_RANGE,
> > +	OP_CLONE_RANGE,
> > +	OP_MAX_FULL,
> > +
> > +	/* integrity operations */
> > +	OP_FSYNC = OP_MAX_FULL,
> > +	OP_MAX_INTEGRITY,
> > +};
> >  
> >  #undef PAGE_SIZE
> >  #define PAGE_SIZE       getpagesize()
> > @@ -160,6 +163,7 @@ int     punch_hole_calls = 1;           /* -H flag disables */
> >  int     zero_range_calls = 1;           /* -z flag disables */
> >  int	collapse_range_calls = 1;	/* -C flag disables */
> >  int	insert_range_calls = 1;		/* -I flag disables */
> > +int	remap_calls = 1;		/* -J flag disables */
> >  int 	mapped_reads = 1;		/* -R flag disables it */
> >  int	integrity = 0;			/* -i flag */
> >  int	fsxgoodfd = 0;
> > @@ -254,6 +258,7 @@ static const char *op_names[] = {
> >  	[OP_ZERO_RANGE] = "zero_range",
> >  	[OP_COLLAPSE_RANGE] = "collapse_range",
> >  	[OP_INSERT_RANGE] = "insert_range",
> > +	[OP_CLONE_RANGE] = "clone_range",
> >  	[OP_FSYNC] = "fsync",
> >  };
> >  
> > @@ -275,6 +280,25 @@ static int op_code(const char *name)
> >  	return -1;
> >  }
> >  
> > +void
> > +log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
> > +{
> > +	struct log_entry *le;
> > +
> > +	le = &oplog[logptr];
> > +	le->operation = operation;
> > +	if (closeopen)
> > +		flags |= FL_CLOSE_OPEN;
> > +	le->args[0] = arg0;
> > +	le->args[1] = arg1;
> > +	le->args[2] = arg2;
> 
> I would like to withdraw this patch so that I can add a fourth args[]
> slot so that we can maintain the convention of printing the
> pre-operation file size after the other operation arguments.  This will
> make tracking the location of EOF through an fsxops file easier.

I'll wait for the new version of the whole patchset then, that gives me
extra time to look at & test them :)

Thanks,
Eryu

> 
> --D
> 
> > +	le->flags = flags;
> > +	logptr++;
> > +	logcount++;
> > +	if (logptr >= LOGSIZE)
> > +		logptr = 0;
> > +}
> > +
> >  void
> >  log4(int operation, int arg0, int arg1, enum opflags flags)
> >  {
> > @@ -294,7 +318,6 @@ log4(int operation, int arg0, int arg1, enum opflags flags)
> >  		logptr = 0;
> >  }
> >  
> > -
> >  void
> >  logdump(void)
> >  {
> > @@ -418,6 +441,13 @@ logdump(void)
> >  			if (overlap)
> >  				prt("\t******IIII");
> >  			break;
> > +		case OP_CLONE_RANGE:
> > +			prt("CLONE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x",
> > +			    lp->args[0], lp->args[0] + lp->args[1] - 1,
> > +			    lp->args[1], lp->args[2]);
> > +			if (overlap)
> > +				prt("\t******IIII");
> > +			break;
> >  		case OP_FSYNC:
> >  			prt("FSYNC");
> >  			break;
> > @@ -1218,6 +1248,73 @@ do_insert_range(unsigned offset, unsigned length)
> >  }
> >  #endif
> >  
> > +#ifdef FICLONERANGE
> > +void
> > +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> > +{
> > +	struct file_clone_range	fcr;
> > +
> > +	if (length == 0) {
> > +		if (!quiet && testcalls > simulatedopcount)
> > +			prt("skipping zero length clone range\n");
> > +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > +		return;
> > +	}
> > +
> > +	if ((loff_t)offset >= file_size) {
> > +		if (!quiet && testcalls > simulatedopcount)
> > +			prt("skipping clone range behind EOF\n");
> > +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > +		return;
> > +	}
> > +
> > +	log5(OP_CLONE_RANGE, offset, length, dest, FL_NONE);
> > +
> > +	if (testcalls <= simulatedopcount)
> > +		return;
> > +
> > +	if ((progressinterval && testcalls % progressinterval == 0) ||
> > +	    (debug && (monitorstart == -1 || monitorend == -1 ||
> > +		       dest <= monitorstart || dest + length <= monitorend))) {
> > +		prt("%lu clone\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
> > +			testcalls, offset, offset+length, length, dest);
> > +	}
> > +
> > +	fcr.src_fd = fd;
> > +	fcr.src_offset = offset;
> > +	fcr.src_length = length;
> > +	fcr.dest_offset = dest;
> > +
> > +	if (ioctl(fd, FICLONERANGE, &fcr) == -1) {
> > +		if (errno == EOPNOTSUPP || errno == ENOTTY) {
> > +			if (!quiet && testcalls > simulatedopcount)
> > +				prt("skipping unsupported clone range\n");
> > +			logptr--;
> > +			log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > +			return;
> > +		}
> > +
> > +		prt("clone range: 0x%x to 0x%x at 0x%x\n", offset,
> > +				offset + length, dest);
> > +		prterr("do_clone_range: FICLONERANGE");
> > +		report_failure(161);
> > +	}
> > +
> > +	memcpy(good_buf + dest, good_buf + offset, length);
> > +	if (dest > file_size)
> > +		memset(good_buf + file_size, '\0', dest - file_size);
> > +	if (dest + length > file_size)
> > +		file_size = dest + length;
> > +}
> > +
> > +#else
> > +void
> > +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> > +{
> > +	return;
> > +}
> > +#endif
> > +
> >  #ifdef HAVE_LINUX_FALLOC_H
> >  /* fallocate is basically a no-op unless extending, then a lot like a truncate */
> >  void
> > @@ -1374,6 +1471,7 @@ cleanup(int sig)
> >  static int
> >  read_op(struct log_entry *log_entry)
> >  {
> > +	char *end;
> >  	char line[256];
> >  
> >  	memset(log_entry, 0, sizeof(*log_entry));
> > @@ -1404,8 +1502,6 @@ read_op(struct log_entry *log_entry)
> >  		if (log_entry->operation == -1)
> >  			goto fail;
> >  		for (i = 0; i < 3; i++) {
> > -			char *end;
> > -
> >  			str = strtok(NULL, " \t\n");
> >  			if (!str)
> >  				goto fail;
> > @@ -1438,7 +1534,7 @@ read_op(struct log_entry *log_entry)
> >  int
> >  test(void)
> >  {
> > -	unsigned long	offset;
> > +	unsigned long	offset, offset2;
> >  	unsigned long	size;
> >  	unsigned long	rv;
> >  	unsigned long	op;
> > @@ -1469,6 +1565,7 @@ test(void)
> >  			op = log_entry.operation;
> >  			offset = log_entry.args[0];
> >  			size = log_entry.args[1];
> > +			offset2 = log_entry.args[2];
> >  			closeopen = !!(log_entry.flags & FL_CLOSE_OPEN);
> >  			keep_size = !!(log_entry.flags & FL_KEEP_SIZE);
> >  			goto have_op;
> > @@ -1481,6 +1578,7 @@ test(void)
> >  		closeopen = (rv >> 3) < (1 << 28) / closeprob;
> >  
> >  	offset = random();
> > +	offset2 = 0;
> >  	size = maxoplen;
> >  	if (randomoplen)
> >  		size = random() % (maxoplen + 1);
> > @@ -1506,6 +1604,17 @@ test(void)
> >  		if (zero_range_calls && size && keep_size_calls)
> >  			keep_size = random() % 2;
> >  		break;
> > +	case OP_CLONE_RANGE:
> > +		TRIM_OFF_LEN(offset, size, file_size);
> > +		offset = offset & ~(block_size - 1);
> > +		size = size & ~(block_size - 1);
> > +		do {
> > +			offset2 = random();
> > +			TRIM_OFF(offset2, maxfilelen);
> > +			offset2 = offset2 & ~(block_size - 1);
> > +		} while (llabs(offset2 - offset) < size ||
> > +			 offset2 + size > maxfilelen);
> > +		break;
> >  	}
> >  
> >  have_op:
> > @@ -1549,6 +1658,12 @@ test(void)
> >  			goto out;
> >  		}
> >  		break;
> > +	case OP_CLONE_RANGE:
> > +		if (!remap_calls) {
> > +			log5(op, offset, size, offset2, FL_SKIPPED);
> > +			goto out;
> > +		}
> > +		break;
> >  	}
> >  
> >  	switch (op) {
> > @@ -1615,6 +1730,18 @@ test(void)
> >  
> >  		do_insert_range(offset, size);
> >  		break;
> > +	case OP_CLONE_RANGE:
> > +		if (size == 0) {
> > +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> > +			goto out;
> > +		}
> > +		if (offset2 + size > maxfilelen) {
> > +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> > +			goto out;
> > +		}
> > +
> > +		do_clone_range(offset, size, offset2);
> > +		break;
> >  	case OP_FSYNC:
> >  		dofsync();
> >  		break;
> > @@ -1637,7 +1764,7 @@ void
> >  usage(void)
> >  {
> >  	fprintf(stdout, "usage: %s",
> > -		"fsx [-dknqxAFLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
> > +		"fsx [-dknqxAFJLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
> >  	-b opnum: beginning operation number (default 1)\n\
> >  	-c P: 1 in P chance of file close+open at each op (default infinity)\n\
> >  	-d: debug output for all operations\n\
> > @@ -1678,6 +1805,10 @@ usage(void)
> >  #ifdef FALLOC_FL_INSERT_RANGE
> >  "	-I: Do not use insert range calls\n"
> >  #endif
> > +#if defined(FICLONERANGE) || defined(FIDEDUPERANGE) || \
> > +    defined(HAVE_COPY_FILE_RANGE)
> > +"	-J: Do not use clone/dedupe/copy range calls\n"
> > +#endif
> >  "	-L: fsxLite - no file creations & no file size changes\n\
> >  	-N numops: total # operations to do (default infinity)\n\
> >  	-O: use oplen (see -o flag) for every op (default random)\n\
> > @@ -2010,6 +2141,9 @@ main(int argc, char **argv)
> >  		case 'I':
> >  			insert_range_calls = 0;
> >  			break;
> > +		case 'J':
> > +			remap_calls = 0;
> > +			break;
> >  		case 'L':
> >  		        lite = 1;
> >  			o_flags &= ~(O_CREAT|O_TRUNC);
> >
Darrick J. Wong Nov. 20, 2018, 2:27 a.m. UTC | #3
On Sun, Nov 18, 2018 at 09:51:08PM +0800, Eryu Guan wrote:
> On Fri, Nov 16, 2018 at 11:26:26AM -0800, Darrick J. Wong wrote:
> > On Tue, Nov 13, 2018 at 03:39:43PM -0800, Darrick J. Wong wrote:
> > > From: Darrick J. Wong <darrick.wong@oracle.com>
> > > 
> > > Add support for FICLONERANGE to fsx.
> > > 
> > > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> > > ---
> > >  ltp/fsx.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
> > >  1 file changed, 158 insertions(+), 24 deletions(-)
> > > 
> > > 
> > > diff --git a/ltp/fsx.c b/ltp/fsx.c
> > > index b0157ba3..2b0a2b28 100644
> > > --- a/ltp/fsx.c
> > > +++ b/ltp/fsx.c
> > > @@ -88,25 +88,28 @@ int			logcount = 0;	/* total ops */
> > >   * mode being run.
> > >   */
> > >  
> > > -/* common operations */
> > > -#define	OP_READ		0
> > > -#define OP_WRITE	1
> > > -#define OP_MAPREAD	2
> > > -#define OP_MAPWRITE	3
> > > -#define OP_MAX_LITE	4
> > > -
> > > -/* !lite operations */
> > > -#define OP_TRUNCATE		4
> > > -#define OP_FALLOCATE		5
> > > -#define OP_PUNCH_HOLE		6
> > > -#define OP_ZERO_RANGE		7
> > > -#define OP_COLLAPSE_RANGE	8
> > > -#define OP_INSERT_RANGE	9
> > > -#define OP_MAX_FULL		10
> > > -
> > > -/* integrity operations */
> > > -#define OP_FSYNC		10
> > > -#define OP_MAX_INTEGRITY	11
> > > +enum {
> > > +	/* common operations */
> > > +	OP_READ = 0,
> > > +	OP_WRITE,
> > > +	OP_MAPREAD,
> > > +	OP_MAPWRITE,
> > > +	OP_MAX_LITE,
> > > +
> > > +	/* !lite operations */
> > > +	OP_TRUNCATE = OP_MAX_LITE,
> > > +	OP_FALLOCATE,
> > > +	OP_PUNCH_HOLE,
> > > +	OP_ZERO_RANGE,
> > > +	OP_COLLAPSE_RANGE,
> > > +	OP_INSERT_RANGE,
> > > +	OP_CLONE_RANGE,
> > > +	OP_MAX_FULL,
> > > +
> > > +	/* integrity operations */
> > > +	OP_FSYNC = OP_MAX_FULL,
> > > +	OP_MAX_INTEGRITY,
> > > +};
> > >  
> > >  #undef PAGE_SIZE
> > >  #define PAGE_SIZE       getpagesize()
> > > @@ -160,6 +163,7 @@ int     punch_hole_calls = 1;           /* -H flag disables */
> > >  int     zero_range_calls = 1;           /* -z flag disables */
> > >  int	collapse_range_calls = 1;	/* -C flag disables */
> > >  int	insert_range_calls = 1;		/* -I flag disables */
> > > +int	remap_calls = 1;		/* -J flag disables */
> > >  int 	mapped_reads = 1;		/* -R flag disables it */
> > >  int	integrity = 0;			/* -i flag */
> > >  int	fsxgoodfd = 0;
> > > @@ -254,6 +258,7 @@ static const char *op_names[] = {
> > >  	[OP_ZERO_RANGE] = "zero_range",
> > >  	[OP_COLLAPSE_RANGE] = "collapse_range",
> > >  	[OP_INSERT_RANGE] = "insert_range",
> > > +	[OP_CLONE_RANGE] = "clone_range",
> > >  	[OP_FSYNC] = "fsync",
> > >  };
> > >  
> > > @@ -275,6 +280,25 @@ static int op_code(const char *name)
> > >  	return -1;
> > >  }
> > >  
> > > +void
> > > +log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
> > > +{
> > > +	struct log_entry *le;
> > > +
> > > +	le = &oplog[logptr];
> > > +	le->operation = operation;
> > > +	if (closeopen)
> > > +		flags |= FL_CLOSE_OPEN;
> > > +	le->args[0] = arg0;
> > > +	le->args[1] = arg1;
> > > +	le->args[2] = arg2;
> > 
> > I would like to withdraw this patch so that I can add a fourth args[]
> > slot so that we can maintain the convention of printing the
> > pre-operation file size after the other operation arguments.  This will
> > make tracking the location of EOF through an fsxops file easier.
> 
> I'll wait for the new version of the whole patchset then, that gives me
> extra time to look at & test them :)

I also added separate command line arguments to disable each of {clone,
dedupe, copy} range, and fixed the "does this overlap with the bad
range" reporting.  I also added a new mode where you can ask fsx to
reread the entire file after every operation to look for corruption
problems.  Will send patches shortly.

--D

> Thanks,
> Eryu
> 
> > 
> > --D
> > 
> > > +	le->flags = flags;
> > > +	logptr++;
> > > +	logcount++;
> > > +	if (logptr >= LOGSIZE)
> > > +		logptr = 0;
> > > +}
> > > +
> > >  void
> > >  log4(int operation, int arg0, int arg1, enum opflags flags)
> > >  {
> > > @@ -294,7 +318,6 @@ log4(int operation, int arg0, int arg1, enum opflags flags)
> > >  		logptr = 0;
> > >  }
> > >  
> > > -
> > >  void
> > >  logdump(void)
> > >  {
> > > @@ -418,6 +441,13 @@ logdump(void)
> > >  			if (overlap)
> > >  				prt("\t******IIII");
> > >  			break;
> > > +		case OP_CLONE_RANGE:
> > > +			prt("CLONE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x",
> > > +			    lp->args[0], lp->args[0] + lp->args[1] - 1,
> > > +			    lp->args[1], lp->args[2]);
> > > +			if (overlap)
> > > +				prt("\t******IIII");
> > > +			break;
> > >  		case OP_FSYNC:
> > >  			prt("FSYNC");
> > >  			break;
> > > @@ -1218,6 +1248,73 @@ do_insert_range(unsigned offset, unsigned length)
> > >  }
> > >  #endif
> > >  
> > > +#ifdef FICLONERANGE
> > > +void
> > > +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> > > +{
> > > +	struct file_clone_range	fcr;
> > > +
> > > +	if (length == 0) {
> > > +		if (!quiet && testcalls > simulatedopcount)
> > > +			prt("skipping zero length clone range\n");
> > > +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > > +		return;
> > > +	}
> > > +
> > > +	if ((loff_t)offset >= file_size) {
> > > +		if (!quiet && testcalls > simulatedopcount)
> > > +			prt("skipping clone range behind EOF\n");
> > > +		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > > +		return;
> > > +	}
> > > +
> > > +	log5(OP_CLONE_RANGE, offset, length, dest, FL_NONE);
> > > +
> > > +	if (testcalls <= simulatedopcount)
> > > +		return;
> > > +
> > > +	if ((progressinterval && testcalls % progressinterval == 0) ||
> > > +	    (debug && (monitorstart == -1 || monitorend == -1 ||
> > > +		       dest <= monitorstart || dest + length <= monitorend))) {
> > > +		prt("%lu clone\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
> > > +			testcalls, offset, offset+length, length, dest);
> > > +	}
> > > +
> > > +	fcr.src_fd = fd;
> > > +	fcr.src_offset = offset;
> > > +	fcr.src_length = length;
> > > +	fcr.dest_offset = dest;
> > > +
> > > +	if (ioctl(fd, FICLONERANGE, &fcr) == -1) {
> > > +		if (errno == EOPNOTSUPP || errno == ENOTTY) {
> > > +			if (!quiet && testcalls > simulatedopcount)
> > > +				prt("skipping unsupported clone range\n");
> > > +			logptr--;
> > > +			log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
> > > +			return;
> > > +		}
> > > +
> > > +		prt("clone range: 0x%x to 0x%x at 0x%x\n", offset,
> > > +				offset + length, dest);
> > > +		prterr("do_clone_range: FICLONERANGE");
> > > +		report_failure(161);
> > > +	}
> > > +
> > > +	memcpy(good_buf + dest, good_buf + offset, length);
> > > +	if (dest > file_size)
> > > +		memset(good_buf + file_size, '\0', dest - file_size);
> > > +	if (dest + length > file_size)
> > > +		file_size = dest + length;
> > > +}
> > > +
> > > +#else
> > > +void
> > > +do_clone_range(unsigned offset, unsigned length, unsigned dest)
> > > +{
> > > +	return;
> > > +}
> > > +#endif
> > > +
> > >  #ifdef HAVE_LINUX_FALLOC_H
> > >  /* fallocate is basically a no-op unless extending, then a lot like a truncate */
> > >  void
> > > @@ -1374,6 +1471,7 @@ cleanup(int sig)
> > >  static int
> > >  read_op(struct log_entry *log_entry)
> > >  {
> > > +	char *end;
> > >  	char line[256];
> > >  
> > >  	memset(log_entry, 0, sizeof(*log_entry));
> > > @@ -1404,8 +1502,6 @@ read_op(struct log_entry *log_entry)
> > >  		if (log_entry->operation == -1)
> > >  			goto fail;
> > >  		for (i = 0; i < 3; i++) {
> > > -			char *end;
> > > -
> > >  			str = strtok(NULL, " \t\n");
> > >  			if (!str)
> > >  				goto fail;
> > > @@ -1438,7 +1534,7 @@ read_op(struct log_entry *log_entry)
> > >  int
> > >  test(void)
> > >  {
> > > -	unsigned long	offset;
> > > +	unsigned long	offset, offset2;
> > >  	unsigned long	size;
> > >  	unsigned long	rv;
> > >  	unsigned long	op;
> > > @@ -1469,6 +1565,7 @@ test(void)
> > >  			op = log_entry.operation;
> > >  			offset = log_entry.args[0];
> > >  			size = log_entry.args[1];
> > > +			offset2 = log_entry.args[2];
> > >  			closeopen = !!(log_entry.flags & FL_CLOSE_OPEN);
> > >  			keep_size = !!(log_entry.flags & FL_KEEP_SIZE);
> > >  			goto have_op;
> > > @@ -1481,6 +1578,7 @@ test(void)
> > >  		closeopen = (rv >> 3) < (1 << 28) / closeprob;
> > >  
> > >  	offset = random();
> > > +	offset2 = 0;
> > >  	size = maxoplen;
> > >  	if (randomoplen)
> > >  		size = random() % (maxoplen + 1);
> > > @@ -1506,6 +1604,17 @@ test(void)
> > >  		if (zero_range_calls && size && keep_size_calls)
> > >  			keep_size = random() % 2;
> > >  		break;
> > > +	case OP_CLONE_RANGE:
> > > +		TRIM_OFF_LEN(offset, size, file_size);
> > > +		offset = offset & ~(block_size - 1);
> > > +		size = size & ~(block_size - 1);
> > > +		do {
> > > +			offset2 = random();
> > > +			TRIM_OFF(offset2, maxfilelen);
> > > +			offset2 = offset2 & ~(block_size - 1);
> > > +		} while (llabs(offset2 - offset) < size ||
> > > +			 offset2 + size > maxfilelen);
> > > +		break;
> > >  	}
> > >  
> > >  have_op:
> > > @@ -1549,6 +1658,12 @@ test(void)
> > >  			goto out;
> > >  		}
> > >  		break;
> > > +	case OP_CLONE_RANGE:
> > > +		if (!remap_calls) {
> > > +			log5(op, offset, size, offset2, FL_SKIPPED);
> > > +			goto out;
> > > +		}
> > > +		break;
> > >  	}
> > >  
> > >  	switch (op) {
> > > @@ -1615,6 +1730,18 @@ test(void)
> > >  
> > >  		do_insert_range(offset, size);
> > >  		break;
> > > +	case OP_CLONE_RANGE:
> > > +		if (size == 0) {
> > > +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> > > +			goto out;
> > > +		}
> > > +		if (offset2 + size > maxfilelen) {
> > > +			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
> > > +			goto out;
> > > +		}
> > > +
> > > +		do_clone_range(offset, size, offset2);
> > > +		break;
> > >  	case OP_FSYNC:
> > >  		dofsync();
> > >  		break;
> > > @@ -1637,7 +1764,7 @@ void
> > >  usage(void)
> > >  {
> > >  	fprintf(stdout, "usage: %s",
> > > -		"fsx [-dknqxAFLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
> > > +		"fsx [-dknqxAFJLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
> > >  	-b opnum: beginning operation number (default 1)\n\
> > >  	-c P: 1 in P chance of file close+open at each op (default infinity)\n\
> > >  	-d: debug output for all operations\n\
> > > @@ -1678,6 +1805,10 @@ usage(void)
> > >  #ifdef FALLOC_FL_INSERT_RANGE
> > >  "	-I: Do not use insert range calls\n"
> > >  #endif
> > > +#if defined(FICLONERANGE) || defined(FIDEDUPERANGE) || \
> > > +    defined(HAVE_COPY_FILE_RANGE)
> > > +"	-J: Do not use clone/dedupe/copy range calls\n"
> > > +#endif
> > >  "	-L: fsxLite - no file creations & no file size changes\n\
> > >  	-N numops: total # operations to do (default infinity)\n\
> > >  	-O: use oplen (see -o flag) for every op (default random)\n\
> > > @@ -2010,6 +2141,9 @@ main(int argc, char **argv)
> > >  		case 'I':
> > >  			insert_range_calls = 0;
> > >  			break;
> > > +		case 'J':
> > > +			remap_calls = 0;
> > > +			break;
> > >  		case 'L':
> > >  		        lite = 1;
> > >  			o_flags &= ~(O_CREAT|O_TRUNC);
> > >
Eryu Guan Nov. 20, 2018, 2:57 a.m. UTC | #4
On Mon, Nov 19, 2018 at 06:27:55PM -0800, Darrick J. Wong wrote:
> On Sun, Nov 18, 2018 at 09:51:08PM +0800, Eryu Guan wrote:
> > On Fri, Nov 16, 2018 at 11:26:26AM -0800, Darrick J. Wong wrote:
> > > On Tue, Nov 13, 2018 at 03:39:43PM -0800, Darrick J. Wong wrote:
> > > > From: Darrick J. Wong <darrick.wong@oracle.com>
> > > > 
> > > > Add support for FICLONERANGE to fsx.
> > > > 
> > > > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> > > > ---
> > > >  ltp/fsx.c |  182 +++++++++++++++++++++++++++++++++++++++++++++++++++++--------
> > > >  1 file changed, 158 insertions(+), 24 deletions(-)
> > > > 
> > > > 
> > > > diff --git a/ltp/fsx.c b/ltp/fsx.c
> > > > index b0157ba3..2b0a2b28 100644
> > > > --- a/ltp/fsx.c
> > > > +++ b/ltp/fsx.c
> > > > @@ -88,25 +88,28 @@ int			logcount = 0;	/* total ops */
> > > >   * mode being run.
> > > >   */
> > > >  
> > > > -/* common operations */
> > > > -#define	OP_READ		0
> > > > -#define OP_WRITE	1
> > > > -#define OP_MAPREAD	2
> > > > -#define OP_MAPWRITE	3
> > > > -#define OP_MAX_LITE	4
> > > > -
> > > > -/* !lite operations */
> > > > -#define OP_TRUNCATE		4
> > > > -#define OP_FALLOCATE		5
> > > > -#define OP_PUNCH_HOLE		6
> > > > -#define OP_ZERO_RANGE		7
> > > > -#define OP_COLLAPSE_RANGE	8
> > > > -#define OP_INSERT_RANGE	9
> > > > -#define OP_MAX_FULL		10
> > > > -
> > > > -/* integrity operations */
> > > > -#define OP_FSYNC		10
> > > > -#define OP_MAX_INTEGRITY	11
> > > > +enum {
> > > > +	/* common operations */
> > > > +	OP_READ = 0,
> > > > +	OP_WRITE,
> > > > +	OP_MAPREAD,
> > > > +	OP_MAPWRITE,
> > > > +	OP_MAX_LITE,
> > > > +
> > > > +	/* !lite operations */
> > > > +	OP_TRUNCATE = OP_MAX_LITE,
> > > > +	OP_FALLOCATE,
> > > > +	OP_PUNCH_HOLE,
> > > > +	OP_ZERO_RANGE,
> > > > +	OP_COLLAPSE_RANGE,
> > > > +	OP_INSERT_RANGE,
> > > > +	OP_CLONE_RANGE,
> > > > +	OP_MAX_FULL,
> > > > +
> > > > +	/* integrity operations */
> > > > +	OP_FSYNC = OP_MAX_FULL,
> > > > +	OP_MAX_INTEGRITY,
> > > > +};
> > > >  
> > > >  #undef PAGE_SIZE
> > > >  #define PAGE_SIZE       getpagesize()
> > > > @@ -160,6 +163,7 @@ int     punch_hole_calls = 1;           /* -H flag disables */
> > > >  int     zero_range_calls = 1;           /* -z flag disables */
> > > >  int	collapse_range_calls = 1;	/* -C flag disables */
> > > >  int	insert_range_calls = 1;		/* -I flag disables */
> > > > +int	remap_calls = 1;		/* -J flag disables */
> > > >  int 	mapped_reads = 1;		/* -R flag disables it */
> > > >  int	integrity = 0;			/* -i flag */
> > > >  int	fsxgoodfd = 0;
> > > > @@ -254,6 +258,7 @@ static const char *op_names[] = {
> > > >  	[OP_ZERO_RANGE] = "zero_range",
> > > >  	[OP_COLLAPSE_RANGE] = "collapse_range",
> > > >  	[OP_INSERT_RANGE] = "insert_range",
> > > > +	[OP_CLONE_RANGE] = "clone_range",
> > > >  	[OP_FSYNC] = "fsync",
> > > >  };
> > > >  
> > > > @@ -275,6 +280,25 @@ static int op_code(const char *name)
> > > >  	return -1;
> > > >  }
> > > >  
> > > > +void
> > > > +log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
> > > > +{
> > > > +	struct log_entry *le;
> > > > +
> > > > +	le = &oplog[logptr];
> > > > +	le->operation = operation;
> > > > +	if (closeopen)
> > > > +		flags |= FL_CLOSE_OPEN;
> > > > +	le->args[0] = arg0;
> > > > +	le->args[1] = arg1;
> > > > +	le->args[2] = arg2;
> > > 
> > > I would like to withdraw this patch so that I can add a fourth args[]
> > > slot so that we can maintain the convention of printing the
> > > pre-operation file size after the other operation arguments.  This will
> > > make tracking the location of EOF through an fsxops file easier.
> > 
> > I'll wait for the new version of the whole patchset then, that gives me
> > extra time to look at & test them :)
> 
> I also added separate command line arguments to disable each of {clone,
> dedupe, copy} range, and fixed the "does this overlap with the bad
> range" reporting.  I also added a new mode where you can ask fsx to
> reread the entire file after every operation to look for corruption
> problems.  Will send patches shortly.

As we're seeing many new failures (even crashes and hangs) when
clone/dedupe/copy range are enabled, is it better to mark them as
disabled by default?

Thanks,
Eryu
diff mbox series

Patch

diff --git a/ltp/fsx.c b/ltp/fsx.c
index b0157ba3..2b0a2b28 100644
--- a/ltp/fsx.c
+++ b/ltp/fsx.c
@@ -88,25 +88,28 @@  int			logcount = 0;	/* total ops */
  * mode being run.
  */
 
-/* common operations */
-#define	OP_READ		0
-#define OP_WRITE	1
-#define OP_MAPREAD	2
-#define OP_MAPWRITE	3
-#define OP_MAX_LITE	4
-
-/* !lite operations */
-#define OP_TRUNCATE		4
-#define OP_FALLOCATE		5
-#define OP_PUNCH_HOLE		6
-#define OP_ZERO_RANGE		7
-#define OP_COLLAPSE_RANGE	8
-#define OP_INSERT_RANGE	9
-#define OP_MAX_FULL		10
-
-/* integrity operations */
-#define OP_FSYNC		10
-#define OP_MAX_INTEGRITY	11
+enum {
+	/* common operations */
+	OP_READ = 0,
+	OP_WRITE,
+	OP_MAPREAD,
+	OP_MAPWRITE,
+	OP_MAX_LITE,
+
+	/* !lite operations */
+	OP_TRUNCATE = OP_MAX_LITE,
+	OP_FALLOCATE,
+	OP_PUNCH_HOLE,
+	OP_ZERO_RANGE,
+	OP_COLLAPSE_RANGE,
+	OP_INSERT_RANGE,
+	OP_CLONE_RANGE,
+	OP_MAX_FULL,
+
+	/* integrity operations */
+	OP_FSYNC = OP_MAX_FULL,
+	OP_MAX_INTEGRITY,
+};
 
 #undef PAGE_SIZE
 #define PAGE_SIZE       getpagesize()
@@ -160,6 +163,7 @@  int     punch_hole_calls = 1;           /* -H flag disables */
 int     zero_range_calls = 1;           /* -z flag disables */
 int	collapse_range_calls = 1;	/* -C flag disables */
 int	insert_range_calls = 1;		/* -I flag disables */
+int	remap_calls = 1;		/* -J flag disables */
 int 	mapped_reads = 1;		/* -R flag disables it */
 int	integrity = 0;			/* -i flag */
 int	fsxgoodfd = 0;
@@ -254,6 +258,7 @@  static const char *op_names[] = {
 	[OP_ZERO_RANGE] = "zero_range",
 	[OP_COLLAPSE_RANGE] = "collapse_range",
 	[OP_INSERT_RANGE] = "insert_range",
+	[OP_CLONE_RANGE] = "clone_range",
 	[OP_FSYNC] = "fsync",
 };
 
@@ -275,6 +280,25 @@  static int op_code(const char *name)
 	return -1;
 }
 
+void
+log5(int operation, int arg0, int arg1, int arg2, enum opflags flags)
+{
+	struct log_entry *le;
+
+	le = &oplog[logptr];
+	le->operation = operation;
+	if (closeopen)
+		flags |= FL_CLOSE_OPEN;
+	le->args[0] = arg0;
+	le->args[1] = arg1;
+	le->args[2] = arg2;
+	le->flags = flags;
+	logptr++;
+	logcount++;
+	if (logptr >= LOGSIZE)
+		logptr = 0;
+}
+
 void
 log4(int operation, int arg0, int arg1, enum opflags flags)
 {
@@ -294,7 +318,6 @@  log4(int operation, int arg0, int arg1, enum opflags flags)
 		logptr = 0;
 }
 
-
 void
 logdump(void)
 {
@@ -418,6 +441,13 @@  logdump(void)
 			if (overlap)
 				prt("\t******IIII");
 			break;
+		case OP_CLONE_RANGE:
+			prt("CLONE 0x%x thru 0x%x\t(0x%x bytes) to 0x%x",
+			    lp->args[0], lp->args[0] + lp->args[1] - 1,
+			    lp->args[1], lp->args[2]);
+			if (overlap)
+				prt("\t******IIII");
+			break;
 		case OP_FSYNC:
 			prt("FSYNC");
 			break;
@@ -1218,6 +1248,73 @@  do_insert_range(unsigned offset, unsigned length)
 }
 #endif
 
+#ifdef FICLONERANGE
+void
+do_clone_range(unsigned offset, unsigned length, unsigned dest)
+{
+	struct file_clone_range	fcr;
+
+	if (length == 0) {
+		if (!quiet && testcalls > simulatedopcount)
+			prt("skipping zero length clone range\n");
+		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
+		return;
+	}
+
+	if ((loff_t)offset >= file_size) {
+		if (!quiet && testcalls > simulatedopcount)
+			prt("skipping clone range behind EOF\n");
+		log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
+		return;
+	}
+
+	log5(OP_CLONE_RANGE, offset, length, dest, FL_NONE);
+
+	if (testcalls <= simulatedopcount)
+		return;
+
+	if ((progressinterval && testcalls % progressinterval == 0) ||
+	    (debug && (monitorstart == -1 || monitorend == -1 ||
+		       dest <= monitorstart || dest + length <= monitorend))) {
+		prt("%lu clone\tfrom 0x%x to 0x%x, (0x%x bytes) at 0x%x\n",
+			testcalls, offset, offset+length, length, dest);
+	}
+
+	fcr.src_fd = fd;
+	fcr.src_offset = offset;
+	fcr.src_length = length;
+	fcr.dest_offset = dest;
+
+	if (ioctl(fd, FICLONERANGE, &fcr) == -1) {
+		if (errno == EOPNOTSUPP || errno == ENOTTY) {
+			if (!quiet && testcalls > simulatedopcount)
+				prt("skipping unsupported clone range\n");
+			logptr--;
+			log5(OP_CLONE_RANGE, offset, length, dest, FL_SKIPPED);
+			return;
+		}
+
+		prt("clone range: 0x%x to 0x%x at 0x%x\n", offset,
+				offset + length, dest);
+		prterr("do_clone_range: FICLONERANGE");
+		report_failure(161);
+	}
+
+	memcpy(good_buf + dest, good_buf + offset, length);
+	if (dest > file_size)
+		memset(good_buf + file_size, '\0', dest - file_size);
+	if (dest + length > file_size)
+		file_size = dest + length;
+}
+
+#else
+void
+do_clone_range(unsigned offset, unsigned length, unsigned dest)
+{
+	return;
+}
+#endif
+
 #ifdef HAVE_LINUX_FALLOC_H
 /* fallocate is basically a no-op unless extending, then a lot like a truncate */
 void
@@ -1374,6 +1471,7 @@  cleanup(int sig)
 static int
 read_op(struct log_entry *log_entry)
 {
+	char *end;
 	char line[256];
 
 	memset(log_entry, 0, sizeof(*log_entry));
@@ -1404,8 +1502,6 @@  read_op(struct log_entry *log_entry)
 		if (log_entry->operation == -1)
 			goto fail;
 		for (i = 0; i < 3; i++) {
-			char *end;
-
 			str = strtok(NULL, " \t\n");
 			if (!str)
 				goto fail;
@@ -1438,7 +1534,7 @@  read_op(struct log_entry *log_entry)
 int
 test(void)
 {
-	unsigned long	offset;
+	unsigned long	offset, offset2;
 	unsigned long	size;
 	unsigned long	rv;
 	unsigned long	op;
@@ -1469,6 +1565,7 @@  test(void)
 			op = log_entry.operation;
 			offset = log_entry.args[0];
 			size = log_entry.args[1];
+			offset2 = log_entry.args[2];
 			closeopen = !!(log_entry.flags & FL_CLOSE_OPEN);
 			keep_size = !!(log_entry.flags & FL_KEEP_SIZE);
 			goto have_op;
@@ -1481,6 +1578,7 @@  test(void)
 		closeopen = (rv >> 3) < (1 << 28) / closeprob;
 
 	offset = random();
+	offset2 = 0;
 	size = maxoplen;
 	if (randomoplen)
 		size = random() % (maxoplen + 1);
@@ -1506,6 +1604,17 @@  test(void)
 		if (zero_range_calls && size && keep_size_calls)
 			keep_size = random() % 2;
 		break;
+	case OP_CLONE_RANGE:
+		TRIM_OFF_LEN(offset, size, file_size);
+		offset = offset & ~(block_size - 1);
+		size = size & ~(block_size - 1);
+		do {
+			offset2 = random();
+			TRIM_OFF(offset2, maxfilelen);
+			offset2 = offset2 & ~(block_size - 1);
+		} while (llabs(offset2 - offset) < size ||
+			 offset2 + size > maxfilelen);
+		break;
 	}
 
 have_op:
@@ -1549,6 +1658,12 @@  test(void)
 			goto out;
 		}
 		break;
+	case OP_CLONE_RANGE:
+		if (!remap_calls) {
+			log5(op, offset, size, offset2, FL_SKIPPED);
+			goto out;
+		}
+		break;
 	}
 
 	switch (op) {
@@ -1615,6 +1730,18 @@  test(void)
 
 		do_insert_range(offset, size);
 		break;
+	case OP_CLONE_RANGE:
+		if (size == 0) {
+			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
+			goto out;
+		}
+		if (offset2 + size > maxfilelen) {
+			log5(OP_CLONE_RANGE, offset, size, offset2, FL_SKIPPED);
+			goto out;
+		}
+
+		do_clone_range(offset, size, offset2);
+		break;
 	case OP_FSYNC:
 		dofsync();
 		break;
@@ -1637,7 +1764,7 @@  void
 usage(void)
 {
 	fprintf(stdout, "usage: %s",
-		"fsx [-dknqxAFLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
+		"fsx [-dknqxAFJLOWZ] [-b opnum] [-c Prob] [-g filldata] [-i logdev] [-j logid] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [-N numops] [-P dirpath] [-S seed] fname\n\
 	-b opnum: beginning operation number (default 1)\n\
 	-c P: 1 in P chance of file close+open at each op (default infinity)\n\
 	-d: debug output for all operations\n\
@@ -1678,6 +1805,10 @@  usage(void)
 #ifdef FALLOC_FL_INSERT_RANGE
 "	-I: Do not use insert range calls\n"
 #endif
+#if defined(FICLONERANGE) || defined(FIDEDUPERANGE) || \
+    defined(HAVE_COPY_FILE_RANGE)
+"	-J: Do not use clone/dedupe/copy range calls\n"
+#endif
 "	-L: fsxLite - no file creations & no file size changes\n\
 	-N numops: total # operations to do (default infinity)\n\
 	-O: use oplen (see -o flag) for every op (default random)\n\
@@ -2010,6 +2141,9 @@  main(int argc, char **argv)
 		case 'I':
 			insert_range_calls = 0;
 			break;
+		case 'J':
+			remap_calls = 0;
+			break;
 		case 'L':
 		        lite = 1;
 			o_flags &= ~(O_CREAT|O_TRUNC);