[LTP] [PATCH v2 1/2] tst_test.sh: Fix TBROK => TWARN evaluation in tst_brk()

[Petr Vorel]

From: Petr Vorel <petr.vorel@gmail.com>

This partly reverts commit 55bfa08e179de16773f19b703de70262896383ea
and setting TST_DO_EXIT=1 before _tst_do_cleanup() and unset it
afterwards inside of the _tst_run_iterations().

Also rename variable to be more descriptive: TST_DO_EXIT => TST_TBROK_TO_TWARN.

This fixes e.g. problem with not exiting test on too small $TMPDIR.
Before the fix:

    # ./nfs10.sh -v 3 -t udp

    nfs10 1 TINFO: Running: nfs10.sh -v 3 -t udp
    ...
    nfs10 1 TINFO: Using /tmp/LTP_nfs10.LWDMqeJ74S as tmpdir (tmpfs filesystem)
    tst_device.c:299: TWARN: Failed to create test_dev.img: ENOSPC (28)

    Usage:
    tst_device acquire [size [filename]]
    tst_device release /path/to/device
    tst_device clear /path/to/device

    nfs10 1 TWARN: Failed to acquire device
    tst_supported_fs_types.c:169: TINFO: Skipping ext2 as requested by the test
    tst_supported_fs_types.c:169: TINFO: Skipping ext3 as requested by the test
    tst_supported_fs_types.c:97: TINFO: Kernel supports ext4
    ...
    nfs10 1 TINFO: === Testing on ext4 ===
    tst_device.c:389: TWARN: Failed to clear 512k block on

    Usage:
    tst_device acquire [size [filename]]
    tst_device release /path/to/device
    tst_device clear /path/to/device

    nfs10 1 TINFO: Formatting ext4 with opts=''
    Usage: mkfs.ext4 [-c|-l filename] [-b block-size] [-C cluster-size]
	    [-i bytes-per-inode] [-I inode-size] [-J journal-options]
	    [-G flex-group-size] [-N number-of-inodes] [-d root-directory]
	    [-m reserved-blocks-percentage] [-o creator-os]
	    [-g blocks-per-group] [-L volume-label] [-M last-mounted-directory]
	    [-O feature[,...]] [-r fs-revision] [-E extended-option[,...]]
	    [-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior][-z undo_file]
	    [-jnqvDFSV] device [blocks-count]
    nfs10 1 TWARN: mkfs.ext4 failed
    nfs10 1 TINFO: Mounting device: mount -t ext4  /tmp/LTP_nfs10.LWDMqeJ74S/mntpoint
    mount: /tmp/LTP_nfs10.LWDMqeJ74S/mntpoint: can't find in /etc/fstab.
    nfs10 1 TWARN: Failed to mount device ext4 type: mount exit = 1
    nfs10 1 TINFO: timeout per run is 0h 11m 0s
    nfs10 1 TCONF: rpc.mountd not running
    nfs10 1 TINFO: Cleaning up testcase
    nfs10 1 TINFO: The '/tmp/LTP_nfs10.LWDMqeJ74S/mntpoint' is not mounted, skipping umount
    tst_device.c:281: TWARN: open() failed: ENOENT (2)

    Usage:
    tst_device acquire [size [filename]]
    tst_device release /path/to/device
    tst_device clear /path/to/device

    nfs10 1 TWARN: Failed to release device ''
    nfs10 1 TINFO: AppArmor enabled, this may affect test results
    nfs10 1 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
    nfs10 1 TINFO: loaded AppArmor profiles: none

After the fix:

    # ./nfs10.sh -v 3 -t udp
    nfs10 1 TINFO: Running: nfs10.sh -v 3 -t udp
    ...
    nfs10 1 TINFO: Using /tmp/LTP_nfs10.34K5E5pjxY as tmpdir (tmpfs filesystem)
    tst_device.c:299: TWARN: Failed to create test_dev.img: ENOSPC (28)

    Usage:
    tst_device acquire [size [filename]]
    tst_device release /path/to/device
    tst_device clear /path/to/device

    nfs10 1 TBROK: Failed to acquire device
    nfs10 1 TINFO: AppArmor enabled, this may affect test results
    nfs10 1 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
    nfs10 1 TINFO: loaded AppArmor profiles: none

Fixes: 55bfa08e17 ("tst_test.sh/tst_brk(): Convert only TBROK to TWARN in cleanup")
Suggested-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
v1: https://patchwork.ozlabs.org/project/ltp/patch/20241211001418.392890-1-pvorel@suse.cz/
Changes v1-v2:
* set guarder in _tst_do_cleanup() (Cyril)
* rename variable (Cyril)

 testcases/lib/tst_test.sh | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/testcases/lib/tst_test.sh b/testcases/lib/tst_test.sh
index 2b797705e3..5a6e34473f 100644
--- a/testcases/lib/tst_test.sh
+++ b/testcases/lib/tst_test.sh
@@ -28,7 +28,6 @@ _tst_do_cleanup()
 {
 	if [ -n "$TST_DO_CLEANUP" -a -n "$TST_CLEANUP" -a -z "$LTP_NO_CLEANUP" ]; then
 		if command -v $TST_CLEANUP >/dev/null 2>/dev/null; then
-			TST_DO_CLEANUP=
 			$TST_CLEANUP
 		else
 			tst_res TWARN "TST_CLEANUP=$TST_CLEANUP declared, but function not defined (or cmd not found)"
@@ -40,7 +39,7 @@ _tst_do_cleanup()
 _tst_do_exit()
 {
 	local ret=0
-	TST_DO_EXIT=1
+	TST_TBROK_TO_TWARN=1
 
 	_tst_do_cleanup
 
@@ -127,15 +126,11 @@ tst_brk()
 	local res=$1
 	shift
 
-	# TBROK => TWARN on cleanup or exit
-	if [ "$res" = TBROK ] && [ "$TST_DO_EXIT" = 1 -o -z "$TST_DO_CLEANUP" -a -n "$TST_CLEANUP" ]; then
-		tst_res TWARN "$@"
-		TST_DO_CLEANUP=
-		return
-	fi
-
 	if [ "$res" != TBROK -a "$res" != TCONF ]; then
 		tst_res TBROK "tst_brk can be called only with TBROK or TCONF ($res)"
+	elif [ "$TST_TBROK_TO_TWARN" = 1 ]; then
+		tst_res TWARN "$@"
+		return
 	else
 		tst_res "$res" "$@"
 	fi
@@ -820,7 +815,9 @@ _tst_run_iterations()
 		_tst_i=$((_tst_i-1))
 	done
 
+	TST_TBROK_TO_TWARN=1
 	_tst_do_cleanup
+	unset TST_TBROK_TO_TWARN
 
 	if [ "$TST_MOUNT_FLAG" = 1 ]; then
 		cd "$LTPROOT"
-- 
2.47.2