From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from userp2130.oracle.com ([156.151.31.86]:49320 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406388AbeKWEjr (ORCPT ); Thu, 22 Nov 2018 23:39:47 -0500 Subject: [PATCH 07/12] fsx: add FICLONERANGE support From: "Darrick J. Wong" Date: Thu, 22 Nov 2018 09:59:12 -0800 Message-ID: <154290955225.1218.10970759549765550744.stgit@magnolia> In-Reply-To: <154290950237.1218.9937108728673485814.stgit@magnolia> References: <154290950237.1218.9937108728673485814.stgit@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: fstests-owner@vger.kernel.org To: guaneryu@gmail.com, darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org, fstests@vger.kernel.org List-ID: From: Darrick J. Wong Add support for the clone range (i.e. reflink) ioctl to fsx. Signed-off-by: Darrick J. Wong --- ltp/fsx.c | 157 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 152 insertions(+), 5 deletions(-) diff --git a/ltp/fsx.c b/ltp/fsx.c index c525ba13..f51d38cf 100644 --- a/ltp/fsx.c +++ b/ltp/fsx.c @@ -104,6 +104,7 @@ enum { OP_ZERO_RANGE, OP_COLLAPSE_RANGE, OP_INSERT_RANGE, + OP_CLONE_RANGE, OP_MAX_FULL, /* integrity operations */ @@ -165,6 +166,7 @@ int collapse_range_calls = 1; /* -C flag disables */ int insert_range_calls = 1; /* -I flag disables */ int mapped_reads = 1; /* -R flag disables it */ int check_file = 0; /* -X flag enables */ +int clone_range_calls = 1; /* -J flag disables */ int integrity = 0; /* -i flag */ int fsxgoodfd = 0; int o_direct; /* -Z */ @@ -258,6 +260,7 @@ 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", }; @@ -320,7 +323,6 @@ log4(int operation, int arg0, int arg1, enum opflags flags) logptr = 0; } - void logdump(void) { @@ -342,7 +344,7 @@ logdump(void) count = LOGSIZE; } for ( ; count > 0; count--) { - bool overlap; + bool overlap, overlap2; int opnum; opnum = i+1 + (logcount/LOGSIZE)*LOGSIZE; @@ -444,6 +446,20 @@ 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 thru 0x%x", + lp->args[0], lp->args[0] + lp->args[1] - 1, + lp->args[1], + lp->args[2], lp->args[2] + lp->args[1] - 1); + overlap2 = badoff >= lp->args[2] && + badoff < lp->args[2] + lp->args[1]; + if (overlap && overlap2) + prt("\tJJJJ**JJJJ"); + else if (overlap) + prt("\tJJJJ******"); + else if (overlap2) + prt("\t******JJJJ"); + break; case OP_FSYNC: prt("FSYNC"); break; @@ -1285,6 +1301,96 @@ do_insert_range(unsigned offset, unsigned length) } #endif +#ifdef FICLONERANGE +int +test_clone_range(void) +{ + struct file_clone_range fcr = { + .src_fd = fd, + }; + + if (ioctl(fd, FICLONERANGE, &fcr) && + (errno = EOPNOTSUPP || errno == ENOTTY)) { + if (!quiet) + fprintf(stderr, + "main: filesystem does not support " + "clone range, disabling!\n"); + return 0; + } + + return 1; +} + +void +do_clone_range(unsigned offset, unsigned length, unsigned dest) +{ + struct file_clone_range fcr = { + .src_fd = fd, + .src_offset = offset, + .src_length = length, + .dest_offset = dest, + }; + + 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; + } + + if (dest + length > biggest) { + biggest = dest + length; + if (!quiet && testcalls > simulatedopcount) + prt("cloning to largest ever: 0x%x\n", dest + length); + } + + 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); + } + + if (ioctl(fd, FICLONERANGE, &fcr) == -1) { + 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 +int +test_clone_range(void) +{ + return 0; +} + +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 @@ -1442,6 +1548,8 @@ static int op_args_count(int operation) { switch (operation) { + case OP_CLONE_RANGE: + return 4; default: return 3; } @@ -1515,7 +1623,7 @@ 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; @@ -1546,6 +1654,7 @@ 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; @@ -1558,6 +1667,7 @@ test(void) closeopen = (rv >> 3) < (1 << 28) / closeprob; offset = random(); + offset2 = 0; size = maxoplen; if (randomoplen) size = random() % (maxoplen + 1); @@ -1583,6 +1693,17 @@ 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: @@ -1626,6 +1747,12 @@ test(void) goto out; } break; + case OP_CLONE_RANGE: + if (!clone_range_calls) { + log5(op, offset, size, offset2, FL_SKIPPED); + goto out; + } + break; } switch (op) { @@ -1692,6 +1819,18 @@ 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; @@ -1717,7 +1856,7 @@ 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\ @@ -1758,6 +1897,9 @@ usage(void) #ifdef FALLOC_FL_INSERT_RANGE " -I: Do not use insert range calls\n" #endif +#ifdef FICLONERANGE +" -J: Do not use clone 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\ @@ -1961,7 +2103,7 @@ main(int argc, char **argv) setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */ while ((ch = getopt_long(argc, argv, - "b:c:dfg:i:j:kl:m:no:p:qr:s:t:w:xyAD:FKHzCILN:OP:RS:WXZ", + "b:c:dfg:i:j:kl:m:no:p:qr:s:t:w:xyAD:FJKHzCILN:OP:RS:WXZ", longopts, NULL)) != EOF) switch (ch) { case 'b': @@ -2091,6 +2233,9 @@ main(int argc, char **argv) case 'I': insert_range_calls = 0; break; + case 'J': + clone_range_calls = 0; + break; case 'L': lite = 1; o_flags &= ~(O_CREAT|O_TRUNC); @@ -2309,6 +2454,8 @@ main(int argc, char **argv) collapse_range_calls = test_fallocate(FALLOC_FL_COLLAPSE_RANGE); if (insert_range_calls) insert_range_calls = test_fallocate(FALLOC_FL_INSERT_RANGE); + if (clone_range_calls) + clone_range_calls = test_clone_range(); while (numops == -1 || numops--) if (!test())