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gfs2: List traversal in do_promote is safe 

In do_promote(), we're never removing the current entry from the list
and so the list traversal is actually safe.  Switch back to
list_for_each_entry().

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2022-06-11 05:00:23 +02:00
parent 0befb8511e
commit 6feaec8147
1 changed files with 2 additions and 2 deletions
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4
fs/gfs2/glock.c
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@ -534,11 +534,11 @@ done:
static int do_promote(struct gfs2_glock *gl)
{
struct gfs2_holder *gh, *tmp, *current_gh;
struct gfs2_holder *gh, *current_gh;
bool incompat_holders_demoted = false;
current_gh = find_first_strong_holder(gl);
list_for_each_entry_safe(gh, tmp, &gl->gl_holders, gh_list) {
list_for_each_entry(gh, &gl->gl_holders, gh_list) {
if (test_bit(HIF_HOLDER, &gh->gh_iflags))
continue;
if (!may_grant(gl, current_gh, gh)) {