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authorAl Viro <viro@zeniv.linux.org.uk>2014-11-20 14:18:09 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-11 16:27:57 -0500
commit893b7775a70e2e2050d5c3829996e906f7a3410c (patch)
tree8b333a05dfe37252612d49ef2c57f2464546da7a /fs/namei.c
parent5e53084d7734a1e1a64346f8480c0bb66c218764 (diff)
downloadop-kernel-dev-893b7775a70e2e2050d5c3829996e906f7a3410c.zip
op-kernel-dev-893b7775a70e2e2050d5c3829996e906f7a3410c.tar.gz
fs/namei.c: new helper (path_cleanup())
All callers of path_init() proceed to do the identical cleanup when they are done with nameidata. Don't open-code it... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c30
1 files changed, 13 insertions, 17 deletions
diff --git a/fs/namei.c b/fs/namei.c
index e967f43..cfebb4f 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1943,6 +1943,16 @@ static int path_init(int dfd, const char *name, unsigned int flags,
return -ECHILD;
}
+static void path_cleanup(struct nameidata *nd)
+{
+ if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT)) {
+ path_put(&nd->root);
+ nd->root.mnt = NULL;
+ }
+ if (unlikely(nd->base))
+ fput(nd->base);
+}
+
static inline int lookup_last(struct nameidata *nd, struct path *path)
{
if (nd->last_type == LAST_NORM && nd->last.name[nd->last.len])
@@ -2009,13 +2019,7 @@ static int path_lookupat(int dfd, const char *name,
}
out:
- if (nd->base)
- fput(nd->base);
-
- if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT)) {
- path_put(&nd->root);
- nd->root.mnt = NULL;
- }
+ path_cleanup(nd);
return err;
}
@@ -2349,12 +2353,7 @@ path_mountpoint(int dfd, const char *name, struct path *path, unsigned int flags
put_link(&nd, &link, cookie);
}
out:
- if (nd.base)
- fput(nd.base);
-
- if (nd.root.mnt && !(nd.flags & LOOKUP_ROOT))
- path_put(&nd.root);
-
+ path_cleanup(&nd);
return err;
}
@@ -3252,10 +3251,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
put_link(nd, &link, cookie);
}
out:
- if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT))
- path_put(&nd->root);
- if (nd->base)
- fput(nd->base);
+ path_cleanup(nd);
if (!(opened & FILE_OPENED)) {
BUG_ON(!error);
put_filp(file);
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