apfs/apfstests
0
0
Fork 0
mirror of https://github.com/linux-apfs/apfstests.git synced 2026-05-01 15:01:44 -07:00
Code Issues Packages Projects Releases Wiki Activity

src/seek_sanity_test: Fix for filesystems without unwritten extent support

Browse Source 
src/seek_sanity_test assumes that after preallocating space in a
file with fallocate, fseek SEEK_HOLE / SEEK_DATA will still report
the allocated space as a hole.  On filesystems without unwritten
extent support, that space will be reported as data, though.  On
such filesystems, skip the unwritten extent tests.

Tested on ext4, xfs, and gfs2 + patches for fseek SEEK_HOLE /
SEEK_DATA support.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Andreas Gruenbacher
2017-06-23 15:32:14 +02:00
committed by Eryu Guan
parent d8e5df11f2
commit d1df9deaab
1 changed files with 69 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/seek_sanity_test.c
+69 -61
View File
@@ -37,6 +37,7 @@
static blksize_t alloc_size;
int default_behavior = 0;
int unwritten_extents = 0;
char *base_file_path;
static void get_file_system(int fd)
@@ -128,13 +129,9 @@ static int do_fallocate(int fd, off_t offset, off_t length, int mode)
int ret;
ret = fallocate(fd, mode, offset, length);
if (ret) {
/* Don't warn about a filesystem w/o fallocate support */
if (errno == EOPNOTSUPP)
return ret;
if (ret)
fprintf(stderr, " ERROR %d: Failed to preallocate "
"space to %ld bytes\n", errno, (long) length);
}
return ret;
}
@@ -284,6 +281,11 @@ static int test17(int fd, int testnum)
int bufsz, filsz;
int ret = 0;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
if (pagesz < 4 * alloc_size) {
fprintf(stdout, "Test skipped as page size (%d) is less than "
"four times allocation size (%d).\n",
@@ -301,14 +303,8 @@ static int test17(int fd, int testnum)
memset(buf, 'a', bufsz);
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, 0);
if (ret)
@@ -355,6 +351,11 @@ static int test16(int fd, int testnum)
int bufsz = sysconf(_SC_PAGE_SIZE);
int filsz = 4 << 20;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -364,14 +365,8 @@ static int test16(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, 0);
if (ret)
@@ -406,6 +401,11 @@ static int test15(int fd, int testnum)
int bufsz = sysconf(_SC_PAGE_SIZE);
int filsz = 4 << 20;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -415,14 +415,8 @@ static int test15(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, 0);
if (ret)
@@ -459,6 +453,11 @@ static int test14(int fd, int testnum)
int bufsz = sysconf(_SC_PAGE_SIZE) * 14;
int filsz = 4 << 20;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -468,14 +467,8 @@ static int test14(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, 0);
if (ret)
@@ -509,6 +502,11 @@ static int test13(int fd, int testnum)
int bufsz = sysconf(_SC_PAGE_SIZE) * 14;
int filsz = 4 << 20;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -518,14 +516,8 @@ static int test13(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, 0);
if (ret)
@@ -579,6 +571,11 @@ static int test09(int fd, int testnum)
int bufsz = alloc_size;
int filsz = bufsz * 100 + bufsz;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/*
* HOLE - unwritten DATA in dirty page - HOLE -
* unwritten DATA in writeback page
@@ -592,14 +589,8 @@ static int test09(int fd, int testnum)
/* preallocate 8M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, bufsz * 10);
if (!ret) {
@@ -635,6 +626,11 @@ static int test08(int fd, int testnum)
int bufsz = alloc_size;
int filsz = bufsz * 10 + bufsz;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in writeback page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -644,14 +640,8 @@ static int test08(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, bufsz * 10);
if (ret)
@@ -684,6 +674,11 @@ static int test07(int fd, int testnum)
int bufsz = alloc_size;
int filsz = bufsz * 10 + bufsz;
if (!unwritten_extents) {
fprintf(stdout, "Test skipped as fs doesn't support unwritten extents.\n");
goto out;
}
/* HOLE - unwritten DATA in dirty page */
/* Each unit is bufsz */
buf = do_malloc(bufsz);
@@ -693,14 +688,8 @@ static int test07(int fd, int testnum)
/* preallocate 4M space to file */
ret = do_fallocate(fd, 0, filsz, 0);
if (ret < 0) {
/* Report success if fs doesn't support fallocate */
if (errno == EOPNOTSUPP) {
fprintf(stdout, "Test skipped as fs doesn't support fallocate.\n");
ret = 0;
}
if (ret < 0)
goto out;
}
ret = do_pwrite(fd, buf, bufsz, bufsz * 10);
if (ret)
@@ -1050,6 +1039,25 @@ static int test_basic_support(void)
fprintf(stderr, "File system supports the default behavior.\n");
}
ftruncate(fd, 0);
if (fallocate(fd, 0, 0, alloc_size) == -1) {
if (errno == EOPNOTSUPP)
fprintf(stderr, "File system does not support fallocate.");
else {
fprintf(stderr, "ERROR %d: Failed to preallocate "
"space to %ld bytes. Aborting.\n", errno, (long) alloc_size);
ret = -1;
}
goto out;
}
pos = lseek(fd, 0, SEEK_DATA);
if (pos == 0) {
fprintf(stderr, "File system does not support unwritten extents.\n");
goto out;
}
unwritten_extents = 1;
printf("\n");
out: