[PATCH 1/6] erofs: get rid of erofs_inode_datablocks()

[Gao Xiang]

erofs_inode_datablocks() has the only one caller, let's just get
rid of it entirely.  No logic changes.

Signed-off-by: Gao Xiang <hsiang...@linux.alibaba.com>
---
 fs/erofs/internal.h |  6 ------
 fs/erofs/namei.c    | 18 +++++-------------
 2 files changed, 5 insertions(+), 19 deletions(-)

diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 08ba817d6551..c18af21ba9c4 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -344,12 +344,6 @@ static inline erofs_off_t erofs_iloc(struct inode *inode)
                (EROFS_I(inode)->nid << sbi->islotbits);
 }
 
-static inline unsigned long erofs_inode_datablocks(struct inode *inode)
-{
-       /* since i_size cannot be changed */
-       return DIV_ROUND_UP(inode->i_size, EROFS_BLKSIZ);
-}
-
 static inline unsigned int erofs_bitrange(unsigned int value, unsigned int bit,
                                          unsigned int bits)
 {
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index b64a108fac92..966eabc61c13 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2022, Alibaba Cloud
  */
 #include "xattr.h"
-
 #include <trace/events/erofs.h>
 
 struct erofs_qstr {
@@ -87,19 +86,13 @@ static struct erofs_dirent *find_target_dirent(struct 
erofs_qstr *name,
        return ERR_PTR(-ENOENT);
 }
 
-static void *find_target_block_classic(struct erofs_buf *target,
-                                      struct inode *dir,
-                                      struct erofs_qstr *name,
-                                      int *_ndirents)
+static void *erofs_find_target_block(struct erofs_buf *target,
+               struct inode *dir, struct erofs_qstr *name, int *_ndirents)
 {
-       unsigned int startprfx, endprfx;
-       int head, back;
+       int head = 0, back = DIV_ROUND_UP(dir->i_size, EROFS_BLKSIZ) - 1;
+       unsigned int startprfx = 0, endprfx = 0;
        void *candidate = ERR_PTR(-ENOENT);
 
-       startprfx = endprfx = 0;
-       head = 0;
-       back = erofs_inode_datablocks(dir) - 1;
-
        while (head <= back) {
                const int mid = head + (back - head) / 2;
                struct erofs_buf buf = __EROFS_BUF_INITIALIZER;
@@ -180,8 +173,7 @@ int erofs_namei(struct inode *dir, const struct qstr *name, 
erofs_nid_t *nid,
        qn.end = name->name + name->len;
 
        ndirents = 0;
-
-       de = find_target_block_classic(&buf, dir, &qn, &ndirents);
+       de = erofs_find_target_block(&buf, dir, &qn, &ndirents);
        if (IS_ERR(de))
                return PTR_ERR(de);
 
-- 
2.24.4