[PATCH] generic: add missing $FSX_AVOID to fsx invocations

["Theodore Ts'o" <tytso@mit.edu>]

From: Eric Whitney <enwlinux@gmail.com>

generic/455 fails when run on an ext4 bigalloc file system.  Its
fsx invocations can make insert range and collapse range calls whose
arguments are not cluster aligned, and ext4 will fail those calls for
bigalloc.  They can be suppressed by adding the FSX_AVOID environment
variable to the fsx invocation and setting its value appropriately in
the test environment, as is done for other fsx-based tests.  This
avoids the need to exclude the test to avoid failures and makes it
possible to take advantage of the remainder of its coverage.

[ Also fix generic/457, as requested by Dave Chinner -- TYT]

Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---

This is a respin of "generic/455: add $FSX_AVOID" which Eric posted here:
https://lore.kernel.org/r/20221021211950.510006-1-enwlinux@gmail.com
it adds a similar fix for generic/457, as requested by Dave and Zorro.

 tests/generic/455 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/generic/455 b/tests/generic/455
index 649b54108..c13d872c6 100755
--- a/tests/generic/455
+++ b/tests/generic/455
@@ -77,7 +77,7 @@ FSX_OPTS="-N $NUM_OPS -d -P $SANITY_DIR -i $LOGWRITES_DMDEV"
 seeds=(0 0 0 0)
 # Run fsx for a while
 for j in `seq 0 $((NUM_FILES-1))`; do
-	run_check $here/ltp/fsx $FSX_OPTS -S ${seeds[$j]} -j $j $SCRATCH_MNT/testfile$j &
+	run_check $here/ltp/fsx $FSX_OPTS $FSX_AVOID -S ${seeds[$j]} -j $j $SCRATCH_MNT/testfile$j &
 done
 wait
 
-- 
2.31.0