[PATCH] erofs: fold in z_erofs_reload_indexes()

From: Yue Hu
Date: Mon Sep 26 2022 - 23:29:30 EST


From: Yue Hu <huyue2@xxxxxxxxxxx>

The name of this function looks not very accurate compared to it's
implementation and it's only a wrapper to erofs_read_metabuf(). So,
let's fold it directly instead.

Signed-off-by: Yue Hu <huyue2@xxxxxxxxxxx>
---
fs/erofs/zmap.c | 28 ++++++++--------------------
1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index ccdddb755be8..4cecd32b87c6 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -166,18 +166,6 @@ struct z_erofs_maprecorder {
bool partialref;
};

-static int z_erofs_reload_indexes(struct z_erofs_maprecorder *m,
- erofs_blk_t eblk)
-{
- struct super_block *const sb = m->inode->i_sb;
-
- m->kaddr = erofs_read_metabuf(&m->map->buf, sb, eblk,
- EROFS_KMAP_ATOMIC);
- if (IS_ERR(m->kaddr))
- return PTR_ERR(m->kaddr);
- return 0;
-}
-
static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
unsigned long lcn)
{
@@ -190,11 +178,11 @@ static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
lcn * sizeof(struct z_erofs_vle_decompressed_index);
struct z_erofs_vle_decompressed_index *di;
unsigned int advise, type;
- int err;

- err = z_erofs_reload_indexes(m, erofs_blknr(pos));
- if (err)
- return err;
+ m->kaddr = erofs_read_metabuf(&m->map->buf, inode->i_sb,
+ erofs_blknr(pos), EROFS_KMAP_ATOMIC);
+ if (IS_ERR(m->kaddr))
+ return PTR_ERR(m->kaddr);

m->nextpackoff = pos + sizeof(struct z_erofs_vle_decompressed_index);
m->lcn = lcn;
@@ -393,7 +381,6 @@ static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m,
unsigned int compacted_4b_initial, compacted_2b;
unsigned int amortizedshift;
erofs_off_t pos;
- int err;

if (lclusterbits != 12)
return -EOPNOTSUPP;
@@ -430,9 +417,10 @@ static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m,
amortizedshift = 2;
out:
pos += lcn * (1 << amortizedshift);
- err = z_erofs_reload_indexes(m, erofs_blknr(pos));
- if (err)
- return err;
+ m->kaddr = erofs_read_metabuf(&m->map->buf, inode->i_sb,
+ erofs_blknr(pos), EROFS_KMAP_ATOMIC);
+ if (IS_ERR(m->kaddr))
+ return PTR_ERR(m->kaddr);
return unpack_compacted_index(m, amortizedshift, pos, lookahead);
}

--
2.17.1