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authorAlexey Dobriyan <adobriyan@gmail.com>2018-04-11 02:32:14 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-11 20:28:34 +0300
commit9cdd83e3100651af41631fb66838adcd24032f2a (patch)
tree181ee45b29c4a312ea23bf88b45a8e65890fc29e /fs/proc/generic.c
parentb77d70db659ad3aa662c80cff4475e773a531fbe (diff)
downloadlinux-9cdd83e3100651af41631fb66838adcd24032f2a.tar.xz
proc: switch struct proc_dir_entry::count to refcount
->count is honest reference count unlike ->in_use. Link: http://lkml.kernel.org/r/20180313174550.GA4332@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/generic.c')
-rw-r--r--fs/proc/generic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 5dad2e89007b..fc0333fd5676 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -402,7 +402,7 @@ static struct proc_dir_entry *__proc_create(struct proc_dir_entry **parent,
ent->mode = mode;
ent->nlink = nlink;
ent->subdir = RB_ROOT_CACHED;
- atomic_set(&ent->count, 1);
+ refcount_set(&ent->refcnt, 1);
spin_lock_init(&ent->pde_unload_lock);
INIT_LIST_HEAD(&ent->pde_openers);
proc_set_user(ent, (*parent)->uid, (*parent)->gid);
@@ -553,7 +553,7 @@ EXPORT_SYMBOL(proc_set_user);
void pde_put(struct proc_dir_entry *pde)
{
- if (atomic_dec_and_test(&pde->count)) {
+ if (refcount_dec_and_test(&pde->refcnt)) {
proc_free_inum(pde->low_ino);
pde_free(pde);
}