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zdump: replace atomic refcount with atomic int

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(Atomic) refcounting was introduced in glib2.58.
We want to support v2.56 as well, so replace it with int and the atomic
operations introduced in glib 2.4.

Fixes: https://github.com/ibm-s390-linux/s390-tools/issues/146
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
This commit is contained in:
Steffen Eiden
2022-12-14 14:25:21 +01:00
parent db6eb7d554
commit 394a6dd5ea
1 changed files with 4 additions and 4 deletions
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8
zdump/pv_utils.c
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@@ -674,7 +674,7 @@ struct _storage_state_mmap {
size_t mapped_size;
pv_tweak_component_t *tweak_components;
size_t num_tweaks;
gatomicrefcount ref_count;
int ref_count;
};
storage_state_mmap_t *storage_state_mmap_new(const int fd, const size_t file_size, const u64 offset,
@@ -733,14 +733,14 @@ storage_state_mmap_t *storage_state_mmap_new(const int fd, const size_t file_siz
ret->tweak_components = (pv_tweak_component_t *)(ptr + in_page_offset);
ret->num_tweaks = tweak_components_cnt;
ret->mapped_size = mmapped_size;
g_atomic_ref_count_init(&ret->ref_count);
ret->ref_count = 1;
return g_steal_pointer(&ret);
}
storage_state_mmap_t *storage_state_mmap_ref(storage_state_mmap_t *storage_state)
{
g_assert(storage_state);
g_atomic_ref_count_inc(&storage_state->ref_count);
g_atomic_int_inc(&storage_state->ref_count);
return storage_state;
}
@@ -748,7 +748,7 @@ void storage_state_mmap_unref(storage_state_mmap_t *storage_state)
{
if (!storage_state)
return;
if (storage_state->ref_count && !g_atomic_ref_count_dec(&storage_state->ref_count))
if (storage_state->ref_count && !g_atomic_int_dec_and_test(&storage_state->ref_count))
return;
if (storage_state->first_page_ptr) {
int rc = munmap(storage_state->first_page_ptr, storage_state->mapped_size);