|
@@ -345,7 +345,7 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c,
|
|
|
&& xd->value_len==xsize
|
|
|
&& !strcmp(xd->xname, xname)
|
|
|
&& !memcmp(xd->xvalue, xvalue, xsize)) {
|
|
|
- xd->refcnt++;
|
|
|
+ atomic_inc(&xd->refcnt);
|
|
|
return xd;
|
|
|
}
|
|
|
}
|
|
@@ -365,7 +365,7 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c,
|
|
|
strcpy(data, xname);
|
|
|
memcpy(data + name_len + 1, xvalue, xsize);
|
|
|
|
|
|
- xd->refcnt = 1;
|
|
|
+ atomic_set(&xd->refcnt, 1);
|
|
|
xd->xid = ++c->highest_xid;
|
|
|
xd->flags |= JFFS2_XFLAGS_HOT;
|
|
|
xd->xprefix = xprefix;
|
|
@@ -397,7 +397,7 @@ static struct jffs2_xattr_datum *create_xattr_datum(struct jffs2_sb_info *c,
|
|
|
static void delete_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd)
|
|
|
{
|
|
|
/* must be called under down_write(xattr_sem) */
|
|
|
- BUG_ON(xd->refcnt);
|
|
|
+ BUG_ON(atomic_read(&xd->refcnt));
|
|
|
|
|
|
unload_xattr_datum(c, xd);
|
|
|
xd->flags |= JFFS2_XFLAGS_DEAD;
|
|
@@ -580,7 +580,7 @@ static void delete_xattr_ref(struct jffs2_sb_info *c, struct jffs2_xattr_ref *re
|
|
|
dbg_xattr("xref(ino=%u, xid=%u, xseqno=%u) was removed.\n",
|
|
|
ref->ino, ref->xid, ref->xseqno);
|
|
|
|
|
|
- if (!--xd->refcnt)
|
|
|
+ if (atomic_dec_and_test(&xd->refcnt))
|
|
|
delete_xattr_datum(c, xd);
|
|
|
}
|
|
|
|
|
@@ -612,8 +612,7 @@ void jffs2_xattr_free_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *i
|
|
|
for (ref = ic->xref; ref; ref = _ref) {
|
|
|
_ref = ref->next;
|
|
|
xd = ref->xd;
|
|
|
- xd->refcnt--;
|
|
|
- if (!xd->refcnt) {
|
|
|
+ if (atomic_dec_and_test(&xd->refcnt)) {
|
|
|
unload_xattr_datum(c, xd);
|
|
|
jffs2_free_xattr_datum(xd);
|
|
|
}
|
|
@@ -835,7 +834,7 @@ void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
|
|
|
}
|
|
|
ref->xd = xd;
|
|
|
ref->ic = ic;
|
|
|
- xd->refcnt++;
|
|
|
+ atomic_inc(&xd->refcnt);
|
|
|
ref->next = ic->xref;
|
|
|
ic->xref = ref;
|
|
|
}
|
|
@@ -846,7 +845,7 @@ void jffs2_build_xattr_subsystem(struct jffs2_sb_info *c)
|
|
|
list_for_each_entry_safe(xd, _xd, &c->xattrindex[i], xindex) {
|
|
|
xdatum_count++;
|
|
|
list_del_init(&xd->xindex);
|
|
|
- if (!xd->refcnt) {
|
|
|
+ if (!atomic_read(&xd->refcnt)) {
|
|
|
dbg_xattr("xdatum(xid=%u, version=%u) is orphan.\n",
|
|
|
xd->xid, xd->version);
|
|
|
xd->flags |= JFFS2_XFLAGS_DEAD;
|
|
@@ -1120,7 +1119,7 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
|
|
|
ref->next = c->xref_dead_list;
|
|
|
c->xref_dead_list = ref;
|
|
|
spin_unlock(&c->erase_completion_lock);
|
|
|
- if (!--xd->refcnt)
|
|
|
+ if (atomic_dec_and_test(&xd->refcnt))
|
|
|
delete_xattr_datum(c, xd);
|
|
|
} else {
|
|
|
ref->ic = ic;
|
|
@@ -1157,8 +1156,7 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
|
|
|
down_write(&c->xattr_sem);
|
|
|
if (rc) {
|
|
|
JFFS2_WARNING("jffs2_reserve_space()=%d, request=%u\n", rc, request);
|
|
|
- xd->refcnt--;
|
|
|
- if (!xd->refcnt)
|
|
|
+ if (atomic_dec_and_test(&xd->refcnt))
|
|
|
delete_xattr_datum(c, xd);
|
|
|
up_write(&c->xattr_sem);
|
|
|
return rc;
|
|
@@ -1172,8 +1170,7 @@ int do_jffs2_setxattr(struct inode *inode, int xprefix, const char *xname,
|
|
|
ic->xref = ref;
|
|
|
}
|
|
|
rc = PTR_ERR(newref);
|
|
|
- xd->refcnt--;
|
|
|
- if (!xd->refcnt)
|
|
|
+ if (atomic_dec_and_test(&xd->refcnt))
|
|
|
delete_xattr_datum(c, xd);
|
|
|
} else if (ref) {
|
|
|
delete_xattr_ref(c, ref);
|
|
@@ -1304,7 +1301,7 @@ int jffs2_verify_xattr(struct jffs2_sb_info *c)
|
|
|
void jffs2_release_xattr_datum(struct jffs2_sb_info *c, struct jffs2_xattr_datum *xd)
|
|
|
{
|
|
|
/* must be called under spin_lock(&c->erase_completion_lock) */
|
|
|
- if (xd->refcnt > 0 || xd->node != (void *)xd)
|
|
|
+ if (atomic_read(&xd->refcnt) || xd->node != (void *)xd)
|
|
|
return;
|
|
|
|
|
|
list_del(&xd->xindex);
|