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Wait for stdin open in orphan-inodes test

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The orphan inode test often uses a trick where it runs sleep in the
abckground with a file as stdin as a means of holding files open.  This
can very rarely fail if the background sleep happens to be first
schedled after the unlink of the file it's reading as stdin.  A small
delay gives it a chance to run and open the file before its unlinked.
It's still possible to lose the race, of course, but so far this has
been good enough.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2022-02-15 09:21:18 -08:00
parent 90518a0fbd
commit 4a0b14a4f2
1 changed files with 2 additions and 0 deletions
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2
tests/tests/orphan-inodes.sh
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@@ -38,6 +38,7 @@ inode_exists $ino || echo "$ino didn't exist"
echo "== unlinked and opened inodes still exist"
sleep 1000000 < "$path" &
sleep .1 # wait for background sleep to run and open stdin
pid="$!"
rm -f "$path"
inode_exists $ino || echo "$ino didn't exist"
@@ -56,6 +57,7 @@ for nr in $(t_fs_nrs); do
touch "$path"
inos="$inos $(stat -c %i $path)"
sleep 1000000 < "$path" &
sleep .1 # wait for background sleep to run and open stdin
pids="$pids $!"
rm -f "$path"
done