[LTP] [PATCH 1/1] tst_supported_fs_types: Disable FUSE bcachefs

[Petr Vorel]

bcachefs got into the kernel in 6.7 therefore it's not much useful for
testing FUSE version.

NOTE: The original purpose for this was a failure with bcachefs-tools on
kernel without bcachefs support (e.g. kernel < 6.7):

    # LTP_SINGLE_FS_TYPE=bcachefs ./chdir01
    ...
    tst_supported_fs_types.c:57: TINFO: mkfs.bcachefs does exist
    tst_test.c:1669: TINFO: === Testing on bcachefs ===
    tst_test.c:1117: TINFO: Formatting /dev/loop0 with bcachefs opts=''
    extra opts=''
    tst_test.c:1131: TINFO: Mounting /dev/loop0 to
    /tmp/LTP_chdwqhGtZ/mntpoint fstyp=bcachefs flags=0
    tst_test.c:1131: TBROK: mount(/dev/loop0, mntpoint, bcachefs, 0, (nil))
    failed: ENODEV (19)

Suggested-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 lib/tst_supported_fs_types.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/tst_supported_fs_types.c b/lib/tst_supported_fs_types.c
index 369836717..bbbb8df19 100644
--- a/lib/tst_supported_fs_types.c
+++ b/lib/tst_supported_fs_types.c
@@ -33,6 +33,11 @@ static const char *const fs_type_whitelist[] = {
 	NULL
 };
 
+static const char *const fs_type_fuse_blacklist[] = {
+	"bcachefs",
+	NULL,
+};
+
 static const char *fs_types[ARRAY_SIZE(fs_type_whitelist)];
 
 static int has_mkfs(const char *fs_type)
@@ -96,6 +101,11 @@ static enum tst_fs_impl has_kernel_support(const char *fs_type)
 
 	SAFE_RMDIR(template);
 
+	if (tst_fs_in_skiplist(fs_type, fs_type_fuse_blacklist)) {
+		tst_res(TINFO, "Skipping %s because of FUSE blacklist", fs_type);
+		return TST_FS_UNSUPPORTED;
+	}
+
 	/* Is FUSE supported by kernel? */
 	if (fuse_supported == -1) {
 		ret = open("/dev/fuse", O_RDWR);
-- 
2.43.0