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fsx: Add fallocate collapse range operation

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This commit adds fallocate FALLOC_FL_COLLAPSE_RANGE support for fsx.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Lukas Czerner
2014-04-04 17:22:29 +11:00
committed by Dave Chinner
parent e0ff31aa69
commit 5f8c711c02
1 changed files with 100 additions and 7 deletions
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ltp/fsx.c
+100 -7
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@@ -90,11 +90,12 @@ int logcount = 0; /* total ops */
#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_MAX_FULL 8
#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_MAX_FULL 9
/* operation modifiers */
#define OP_CLOSEOPEN 100
@@ -111,6 +112,7 @@ char *temp_buf; /* a pointer to the current data */
char *fname; /* name of our test file */
int fd; /* fd for our test file */
blksize_t block_size = 0;
off_t file_size = 0;
off_t biggest = 0;
char state[256];
@@ -142,6 +144,7 @@ int mapped_writes = 1; /* -W flag disables */
int fallocate_calls = 1; /* -F flag disables */
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 mapped_reads = 1; /* -R flag disables it */
int fsxgoodfd = 0;
int o_direct; /* -Z */
@@ -321,13 +324,21 @@ logdump(void)
prt("\t******PPPP");
break;
case OP_ZERO_RANGE:
prt("ZERO 0x%x thru 0x%x\t(0x%x bytes)",
prt("ZERO 0x%x thru 0x%x\t(0x%x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t******ZZZZ");
break;
case OP_COLLAPSE_RANGE:
prt("COLLAPSE 0x%x thru 0x%x\t(0x%x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t******CCCC");
break;
case OP_SKIPPED:
prt("SKIPPED (no operation)");
break;
@@ -949,6 +960,58 @@ do_zero_range(unsigned offset, unsigned length)
}
#endif
#ifdef FALLOC_FL_COLLAPSE_RANGE
void
do_collapse_range(unsigned offset, unsigned length)
{
unsigned end_offset;
int mode = FALLOC_FL_COLLAPSE_RANGE;
if (length == 0) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping zero length collapse range\n");
log4(OP_SKIPPED, OP_COLLAPSE_RANGE, offset, length);
return;
}
end_offset = offset + length;
if ((loff_t)end_offset >= file_size) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping collapse range behind EOF\n");
log4(OP_SKIPPED, OP_COLLAPSE_RANGE, offset, length);
return;
}
log4(OP_COLLAPSE_RANGE, offset, length, 0);
if (testcalls <= simulatedopcount)
return;
if ((progressinterval && testcalls % progressinterval == 0) ||
(debug && (monitorstart == -1 || monitorend == -1 ||
end_offset <= monitorend))) {
prt("%lu collapse\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls,
offset, offset+length, length);
}
if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
prt("collapse range: %x to %x\n", offset, length);
prterr("do_collapse_range: fallocate");
report_failure(161);
}
memmove(good_buf + offset, good_buf + end_offset,
file_size - end_offset);
file_size -= length;
}
#else
void
do_collapse_range(unsigned offset, unsigned length)
{
return;
}
#endif
#ifdef HAVE_LINUX_FALLOC_H
/* fallocate is basically a no-op unless extending, then a lot like a truncate */
void
@@ -1123,6 +1186,12 @@ test(void)
goto out;
}
break;
case OP_COLLAPSE_RANGE:
if (!collapse_range_calls) {
log4(OP_SKIPPED, OP_COLLAPSE_RANGE, offset, size);
goto out;
}
break;
}
switch (op) {
@@ -1165,6 +1234,16 @@ test(void)
TRIM_OFF_LEN(offset, size, file_size);
do_zero_range(offset, size);
break;
case OP_COLLAPSE_RANGE:
TRIM_OFF_LEN(offset, size, file_size - 1);
offset = offset & ~(block_size - 1);
size = size & ~(block_size - 1);
if (size == 0) {
log4(OP_SKIPPED, OP_COLLAPSE_RANGE, offset, size);
goto out;
}
do_collapse_range(offset, size);
break;
default:
prterr("test: unknown operation");
report_failure(42);
@@ -1225,6 +1304,9 @@ usage(void)
#ifdef FALLOC_FL_ZERO_RANGE
" -z: Do not use zero range calls\n"
#endif
#ifdef FALLOC_FL_COLLAPSE_RANGE
" -C: Do not use collapse 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\
@@ -1399,6 +1481,7 @@ main(int argc, char **argv)
char *endp;
char goodfile[1024];
char logfile[1024];
struct stat statbuf;
goodfile[0] = 0;
logfile[0] = 0;
@@ -1410,7 +1493,7 @@ main(int argc, char **argv)
setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHzLN:OP:RS:WZ"))
while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHzCLN:OP:RS:WZ"))
!= EOF)
switch (ch) {
case 'b':
@@ -1513,6 +1596,9 @@ main(int argc, char **argv)
case 'z':
zero_range_calls = 0;
break;
case 'C':
collapse_range_calls = 0;
break;
case 'L':
lite = 1;
break;
@@ -1579,6 +1665,11 @@ main(int argc, char **argv)
prterr(fname);
exit(91);
}
if (fstat(fd, &statbuf)) {
prterr("check_size: fstat");
exit(91);
}
block_size = statbuf.st_blksize;
#ifdef XFS
if (prealloc) {
xfs_flock64_t resv = { 0 };
@@ -1665,6 +1756,8 @@ main(int argc, char **argv)
FALLOC_FL_KEEP_SIZE);
if (zero_range_calls)
zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE);
if (collapse_range_calls)
collapse_range_calls = test_fallocate(FALLOC_FL_COLLAPSE_RANGE);
while (numops == -1 || numops--)
test();