posix_acl: uninlining

Uninline vast tracts of nested inline functions in
include/linux/posix_acl.h.

This reduces the text+data+bss size of x86_64 allyesconfig vmlinux by
8026 bytes.

The patch also regularises the positioning of the EXPORT_SYMBOLs in
posix_acl.c.

Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: J. Bruce Fields <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Tested-by: Benny Halevy <bhalevy@primarydata.com>
Cc: Benny Halevy <bhalevy@panasas.com>
Cc: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 8bd2135..021e7c0 100644 (file)
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -22,11 +22,80 @@
 
 #include <linux/errno.h>
 
-EXPORT_SYMBOL(posix_acl_init);
-EXPORT_SYMBOL(posix_acl_alloc);
-EXPORT_SYMBOL(posix_acl_valid);
-EXPORT_SYMBOL(posix_acl_equiv_mode);
-EXPORT_SYMBOL(posix_acl_from_mode);
+struct posix_acl **acl_by_type(struct inode *inode, int type)
+{
+       switch (type) {
+       case ACL_TYPE_ACCESS:
+               return &inode->i_acl;
+       case ACL_TYPE_DEFAULT:
+               return &inode->i_default_acl;
+       default:
+               BUG();
+       }
+}
+EXPORT_SYMBOL(acl_by_type);
+
+struct posix_acl *get_cached_acl(struct inode *inode, int type)
+{
+       struct posix_acl **p = acl_by_type(inode, type);
+       struct posix_acl *acl = ACCESS_ONCE(*p);
+       if (acl) {
+               spin_lock(&inode->i_lock);
+               acl = *p;
+               if (acl != ACL_NOT_CACHED)
+                       acl = posix_acl_dup(acl);
+               spin_unlock(&inode->i_lock);
+       }
+       return acl;
+}
+EXPORT_SYMBOL(get_cached_acl);
+
+struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type)
+{
+       return rcu_dereference(*acl_by_type(inode, type));
+}
+EXPORT_SYMBOL(get_cached_acl_rcu);
+
+void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl)
+{
+       struct posix_acl **p = acl_by_type(inode, type);
+       struct posix_acl *old;
+       spin_lock(&inode->i_lock);
+       old = *p;
+       rcu_assign_pointer(*p, posix_acl_dup(acl));
+       spin_unlock(&inode->i_lock);
+       if (old != ACL_NOT_CACHED)
+               posix_acl_release(old);
+}
+EXPORT_SYMBOL(set_cached_acl);
+
+void forget_cached_acl(struct inode *inode, int type)
+{
+       struct posix_acl **p = acl_by_type(inode, type);
+       struct posix_acl *old;
+       spin_lock(&inode->i_lock);
+       old = *p;
+       *p = ACL_NOT_CACHED;
+       spin_unlock(&inode->i_lock);
+       if (old != ACL_NOT_CACHED)
+               posix_acl_release(old);
+}
+EXPORT_SYMBOL(forget_cached_acl);
+
+void forget_all_cached_acls(struct inode *inode)
+{
+       struct posix_acl *old_access, *old_default;
+       spin_lock(&inode->i_lock);
+       old_access = inode->i_acl;
+       old_default = inode->i_default_acl;
+       inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
+       spin_unlock(&inode->i_lock);
+       if (old_access != ACL_NOT_CACHED)
+               posix_acl_release(old_access);
+       if (old_default != ACL_NOT_CACHED)
+               posix_acl_release(old_default);
+}
+EXPORT_SYMBOL(forget_all_cached_acls);
 
 /*
  * Init a fresh posix_acl
@@ -37,6 +106,7 @@ posix_acl_init(struct posix_acl *acl, int count)
        atomic_set(&acl->a_refcount, 1);
        acl->a_count = count;
 }
+EXPORT_SYMBOL(posix_acl_init);
 
 /*
  * Allocate a new ACL with the specified number of entries.
@@ -51,6 +121,7 @@ posix_acl_alloc(int count, gfp_t flags)
                posix_acl_init(acl, count);
        return acl;
 }
+EXPORT_SYMBOL(posix_acl_alloc);
 
 /*
  * Clone an ACL.
@@ -146,6 +217,7 @@ posix_acl_valid(const struct posix_acl *acl)
                return 0;
        return -EINVAL;
 }
+EXPORT_SYMBOL(posix_acl_valid);
 
 /*
  * Returns 0 if the acl can be exactly represented in the traditional
@@ -186,6 +258,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
                 *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
         return not_equiv;
 }
+EXPORT_SYMBOL(posix_acl_equiv_mode);
 
 /*
  * Create an ACL representing the file mode permission bits of an inode.
@@ -207,6 +280,7 @@ posix_acl_from_mode(umode_t mode, gfp_t flags)
        acl->a_entries[2].e_perm = (mode & S_IRWXO);
        return acl;
 }
+EXPORT_SYMBOL(posix_acl_from_mode);
 
 /*
  * Return 0 if current is granted want access to the inode

diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 7931efe..fb61694 100644 (file)
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -94,78 +94,12 @@ extern int posix_acl_chmod(struct posix_acl **, gfp_t, umode_t);
 extern struct posix_acl *get_posix_acl(struct inode *, int);
 extern int set_posix_acl(struct inode *, int, struct posix_acl *);
 
-#ifdef CONFIG_FS_POSIX_ACL
-static inline struct posix_acl **acl_by_type(struct inode *inode, int type)
-{
-       switch (type) {
-       case ACL_TYPE_ACCESS:
-               return &inode->i_acl;
-       case ACL_TYPE_DEFAULT:
-               return &inode->i_default_acl;
-       default:
-               BUG();
-       }
-}
-
-static inline struct posix_acl *get_cached_acl(struct inode *inode, int type)
-{
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *acl = ACCESS_ONCE(*p);
-       if (acl) {
-               spin_lock(&inode->i_lock);
-               acl = *p;
-               if (acl != ACL_NOT_CACHED)
-                       acl = posix_acl_dup(acl);
-               spin_unlock(&inode->i_lock);
-       }
-       return acl;
-}
-
-static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type)
-{
-       return rcu_dereference(*acl_by_type(inode, type));
-}
-
-static inline void set_cached_acl(struct inode *inode,
-                                 int type,
-                                 struct posix_acl *acl)
-{
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *old;
-       spin_lock(&inode->i_lock);
-       old = *p;
-       rcu_assign_pointer(*p, posix_acl_dup(acl));
-       spin_unlock(&inode->i_lock);
-       if (old != ACL_NOT_CACHED)
-               posix_acl_release(old);
-}
-
-static inline void forget_cached_acl(struct inode *inode, int type)
-{
-       struct posix_acl **p = acl_by_type(inode, type);
-       struct posix_acl *old;
-       spin_lock(&inode->i_lock);
-       old = *p;
-       *p = ACL_NOT_CACHED;
-       spin_unlock(&inode->i_lock);
-       if (old != ACL_NOT_CACHED)
-               posix_acl_release(old);
-}
-
-static inline void forget_all_cached_acls(struct inode *inode)
-{
-       struct posix_acl *old_access, *old_default;
-       spin_lock(&inode->i_lock);
-       old_access = inode->i_acl;
-       old_default = inode->i_default_acl;
-       inode->i_acl = inode->i_default_acl = ACL_NOT_CACHED;
-       spin_unlock(&inode->i_lock);
-       if (old_access != ACL_NOT_CACHED)
-               posix_acl_release(old_access);
-       if (old_default != ACL_NOT_CACHED)
-               posix_acl_release(old_default);
-}
-#endif
+struct posix_acl **acl_by_type(struct inode *inode, int type);
+struct posix_acl *get_cached_acl(struct inode *inode, int type);
+struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type);
+void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl);
+void forget_cached_acl(struct inode *inode, int type);
+void forget_all_cached_acls(struct inode *inode);
 
 static inline void cache_no_acl(struct inode *inode)
 {