[PATCH 08/12] core: Add cus__remove(), counterpart of cus__add()

Arnaldo Carvalho de Melo
2024-04-02T19:40:15Z

From: Arnaldo Carvalho de Melo <acme@redhat.com>

We'll switch to adding the 'struct cu' instance to the 'struct cus' list
early, under the lock, to keep the order from the original DWARF file
and then LSK_KEEPIT will just leave it there while LSK_DELETE will first
remove it from the cus list, under cus lock, to then call cu__delete().

Cc: Alan Maguire <alan.maguire@oracle.com>
Cc: Kui-Feng Lee <kuifeng@fb.com>
Cc: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
dwarves.c | 13 +++++++++++++
dwarves.h | 4 ++++
2 files changed, 17 insertions(+)

diff --git a/dwarves.c b/dwarves.c
index 654a8085e9252a21..3cd300db97973ce4 100644
--- a/dwarves.c
+++ b/dwarves.c
@@ -479,6 +479,19 @@ uint32_t cus__nr_entries(const struct cus *cus)
return cus->nr_entries;
}

+void __cus__remove(struct cus *cus, struct cu *cu)
+{
+ cus->nr_entries--;
+ list_del_init(&cu->node);
+}
+
+void cus__remove(struct cus *cus, struct cu *cu)
+{
+ cus__lock(cus);
+ __cus__remove(cus, cu);
+ cus__unlock(cus);
+}
+
void __cus__add(struct cus *cus, struct cu *cu)
{
cus->nr_entries++;
diff --git a/dwarves.h b/dwarves.h
index 42b00bc1341e66cb..9dc9cb4b074b5d33 100644
--- a/dwarves.h
+++ b/dwarves.h
@@ -173,6 +173,10 @@ int cus__load_dir(struct cus *cus, struct conf_load *conf,
const int recursive);
void __cus__add(struct cus *cus, struct cu *cu);
void cus__add(struct cus *cus, struct cu *cu);
+
+void __cus__remove(struct cus *cus, struct cu *cu);
+void cus__remove(struct cus *cus, struct cu *cu);
+
void cus__print_error_msg(const char *progname, const struct cus *cus,
const char *filename, const int err);
struct cu *cus__find_pair(struct cus *cus, const char *name);
--
2.44.0