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btrfs: send: remove prepared member from fs_path

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The member is used only to return value back from
fs_path_prepare_for_add, we can do it locally and save 8 bytes for the
inline_buf path.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
This commit is contained in:
David Sterba 2014-02-03 19:23:19 +01:00 committed by Josef Bacik
parent 64792f2535
commit b23ab57d48
1 changed files with 13 additions and 13 deletions
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26
fs/btrfs/send.c
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@ -51,7 +51,6 @@ struct fs_path {
struct {
char *start;
char *end;
char *prepared;
char *buf;
int buf_len;
@ -338,7 +337,8 @@ static int fs_path_ensure_buf(struct fs_path *p, int len)
return 0;
}
static int fs_path_prepare_for_add(struct fs_path *p, int name_len)
static int fs_path_prepare_for_add(struct fs_path *p, int name_len,
char **prepared)
{
int ret;
int new_len;
@ -354,11 +354,11 @@ static int fs_path_prepare_for_add(struct fs_path *p, int name_len)
if (p->start != p->end)
*--p->start = '/';
p->start -= name_len;
p->prepared = p->start;
*prepared = p->start;
} else {
if (p->start != p->end)
*p->end++ = '/';
p->prepared = p->end;
*prepared = p->end;
p->end += name_len;
*p->end = 0;
}
@ -370,12 +370,12 @@ out:
static int fs_path_add(struct fs_path *p, const char *name, int name_len)
{
int ret;
char *prepared;
ret = fs_path_prepare_for_add(p, name_len);
ret = fs_path_prepare_for_add(p, name_len, &prepared);
if (ret < 0)
goto out;
memcpy(p->prepared, name, name_len);
p->prepared = NULL;
memcpy(prepared, name, name_len);
out:
return ret;
@ -384,12 +384,12 @@ out:
static int fs_path_add_path(struct fs_path *p, struct fs_path *p2)
{
int ret;
char *prepared;
ret = fs_path_prepare_for_add(p, p2->end - p2->start);
ret = fs_path_prepare_for_add(p, p2->end - p2->start, &prepared);
if (ret < 0)
goto out;
memcpy(p->prepared, p2->start, p2->end - p2->start);
p->prepared = NULL;
memcpy(prepared, p2->start, p2->end - p2->start);
out:
return ret;
@ -400,13 +400,13 @@ static int fs_path_add_from_extent_buffer(struct fs_path *p,
unsigned long off, int len)
{
int ret;
char *prepared;
ret = fs_path_prepare_for_add(p, len);
ret = fs_path_prepare_for_add(p, len, &prepared);
if (ret < 0)
goto out;
read_extent_buffer(eb, p->prepared, off, len);
p->prepared = NULL;
read_extent_buffer(eb, prepared, off, len);
out:
return ret;