From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from aserp2120.oracle.com ([141.146.126.78]:40468 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727688AbeKTMyu (ORCPT ); Tue, 20 Nov 2018 07:54:50 -0500 Date: Mon, 19 Nov 2018 18:27:55 -0800 From: "Darrick J. Wong" Subject: Re: [PATCH 1/6] fsx: add clone range Message-ID: <20181120022755.GA6783@magnolia> References: <154215237717.21151.11976488103599724788.stgit@magnolia> <154215238338.21151.852724936803809717.stgit@magnolia> <20181116192626.GA9387@magnolia> <20181118135108.GE3889@desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181118135108.GE3889@desktop> Sender: fstests-owner@vger.kernel.org To: Eryu Guan Cc: linux-xfs@vger.kernel.org, fstests@vger.kernel.org List-ID: 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 > > > > > > Add support for FICLONERANGE to fsx. > > > > > > Signed-off-by: Darrick J. Wong > > > --- > > > 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); > > >