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btrfs: Update btrfs/215

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This patch updates btrfs/215 to work with latest upstream kernel. That's
required since commit 324bcf54c449 ("mm: use limited read-ahead to satisfy read")
changed readahead logic to always issue a read even if the RA pages are
set to 0. This results in 1 extra io being issued so the counts in the
test should be incremented by 1. Also use the opportunity to update the
commit reference since it's been merged in the upstream kernel.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
This commit is contained in:
Nikolay Borisov
2020-12-07 11:23:18 +02:00
committed by Eryu Guan
parent c2dd12732f
commit 2a7406efec
1 changed files with 7 additions and 7 deletions
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tests/btrfs/215
+7 -7
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@@ -6,7 +6,7 @@
#
# Test that reading corrupted files would correctly increment device status
# counters. This is fixed by the following linux kernel commit:
# btrfs: Increment device corruption error in case of checksum error
# 814723e0a55a ("btrfs: increment device corruption error in case of checksum error")
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
@@ -70,19 +70,19 @@ _scratch_mount
# disable readahead to avoid skewing the counter
echo 0 > /sys/fs/btrfs/$uuid/bdi/read_ahead_kb
# buffered reads whould result in a single error since the read is done
# page by page
# buffered reads whould result in 2 errors since readahead code always submits
# at least 1 page worth of IO and it will be counted as an error as well
$XFS_IO_PROG -c "pread -b $filesize 0 $filesize" "$SCRATCH_MNT/foobar" > /dev/null 2>&1
errs=$($BTRFS_UTIL_PROG device stats $SCRATCH_DEV | awk '/corruption_errs/ { print $2 }')
if [ $errs -ne 1 ]; then
_fail "Errors: $errs expected: 1"
if [ $errs -ne 2 ]; then
_fail "Errors: $errs expected: 2"
fi
# DIO does check every sector
$XFS_IO_PROG -d -c "pread -b $filesize 0 $filesize" "$SCRATCH_MNT/foobar" > /dev/null 2>&1
errs=$($BTRFS_UTIL_PROG device stats $SCRATCH_DEV | awk '/corruption_errs/ { print $2 }')
if [ $errs -ne 5 ]; then
_fail "Errors: $errs expected: 1"
if [ $errs -ne 6 ]; then
_fail "Errors: $errs expected: 6"
fi
# success, all done