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Date: Mon, 06 Sep 2010 10:50:29 +1000
From: NeilBrown <neilb@...e.de>
To: Miklos Szeredi <miklos@...redi.hu>
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/10] ovl: rename ovl_fill_cache to ovl_dir_read
ovl_fill_cache isn't only used for filling the cache - it is also used
to remove all whiteout files. This can be a bit confusing.
So rename it to a more generic "ovl_dir_read" and rename the data
structure that is passed to it to "ovl_readdir_data".
Signed-off-by: NeilBrown <neilb@...e.de>
---
fs/overlayfs/overlayfs.c | 28 ++++++++++++++--------------
1 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/fs/overlayfs/overlayfs.c b/fs/overlayfs/overlayfs.c
index f9eea96..656cad7 100644
--- a/fs/overlayfs/overlayfs.c
+++ b/fs/overlayfs/overlayfs.c
@@ -88,7 +88,7 @@ struct ovl_cache_entry {
bool is_whiteout;
};
-struct ovl_cache_callback {
+struct ovl_readdir_data {
struct ovl_cache_entry *list;
struct ovl_cache_entry **endp;
struct path path;
@@ -102,7 +102,7 @@ struct ovl_dir_file {
struct file *realfile;
};
-static int ovl_cache_add_entry(struct ovl_cache_callback *cb,
+static int ovl_cache_add_entry(struct ovl_readdir_data *cb,
const char *name, int namelen, u64 ino,
unsigned int d_type, bool is_whiteout)
{
@@ -161,7 +161,7 @@ static int ovl_cache_find_entry(struct ovl_cache_entry *start,
static int ovl_fill_lower(void *buf, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
- struct ovl_cache_callback *cb = buf;
+ struct ovl_readdir_data *cb = buf;
cb->count++;
if (!ovl_cache_find_entry(cb->list, name, namlen))
@@ -173,7 +173,7 @@ static int ovl_fill_lower(void *buf, const char *name, int namlen,
static int ovl_fill_upper(void *buf, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
- struct ovl_cache_callback *cb = buf;
+ struct ovl_readdir_data *cb = buf;
bool is_whiteout = false;
cb->count++;
@@ -195,7 +195,7 @@ out:
return cb->err;
}
-static int ovl_fill_cache(struct path *realpath, struct ovl_cache_callback *cb,
+static int ovl_dir_read(struct path *realpath, struct ovl_readdir_data *cb,
filldir_t filler)
{
const struct cred *old_cred;
@@ -270,15 +270,15 @@ static int ovl_readdir(struct file *file, void *buf, filldir_t filler)
}
if (!od->cache) {
- struct ovl_cache_callback cb = {
+ struct ovl_readdir_data cb = {
.list = NULL,
.endp = &cb.list,
.path = ue->upperpath,
};
- res = ovl_fill_cache(&ue->upperpath, &cb, ovl_fill_upper);
+ res = ovl_dir_read(&ue->upperpath, &cb, ovl_fill_upper);
if (!res) {
- res = ovl_fill_cache(&ue->lowerpath, &cb,
+ res = ovl_dir_read(&ue->lowerpath, &cb,
ovl_fill_lower);
}
if (res)
@@ -1292,18 +1292,18 @@ static int ovl_check_empty_dir(struct dentry *dentry)
int err;
struct ovl_entry *ue = dentry->d_fsdata;
struct ovl_cache_entry *p;
- struct ovl_cache_callback cb = {
+ struct ovl_readdir_data cb = {
.list = NULL,
.endp = &cb.list,
.path = ue->upperpath,
};
if (ue->upperpath.dentry) {
- err = ovl_fill_cache(&ue->upperpath, &cb, ovl_fill_upper);
+ err = ovl_dir_read(&ue->upperpath, &cb, ovl_fill_upper);
if (err)
return err;
}
- err = ovl_fill_cache(&ue->lowerpath, &cb, ovl_fill_lower);
+ err = ovl_dir_read(&ue->lowerpath, &cb, ovl_fill_lower);
if (err)
return err;
@@ -1330,7 +1330,7 @@ static int ovl_check_empty_dir(struct dentry *dentry)
static int ovl_unlink_whiteout(void *buf, const char *name, int namlen,
loff_t offset, u64 ino, unsigned int d_type)
{
- struct ovl_cache_callback *cb = buf;
+ struct ovl_readdir_data *cb = buf;
cb->count++;
/* check d_type to filter out "." and ".." */
@@ -1352,7 +1352,7 @@ static int ovl_unlink_whiteout(void *buf, const char *name, int namlen,
static int ovl_remove_whiteouts(struct dentry *dentry)
{
struct ovl_entry *ue = dentry->d_fsdata;
- struct ovl_cache_callback cb = {
+ struct ovl_readdir_data cb = {
.list = NULL,
.path = ue->upperpath,
};
@@ -1360,7 +1360,7 @@ static int ovl_remove_whiteouts(struct dentry *dentry)
if (!ue->upperpath.dentry)
return 0;
- return ovl_fill_cache(&ue->upperpath, &cb, ovl_unlink_whiteout);
+ return ovl_dir_read(&ue->upperpath, &cb, ovl_unlink_whiteout);
}
static int ovl_rmdir(struct inode *dir, struct dentry *dentry)
--
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