f2fs: unify string length declarations and usage

This patch is intended to unify string length declarations and usage.
There are number of calls to strlen which return size_t object.
The size of this object depends on compiler if it will be bigger,
equal or even smaller than an unsigned int

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

5 files changed, 18 insertions, 15 deletions

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 4a78d6c4f3a7..951ed52748f6 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -75,7 +75,7 @@ static unsigned long dir_block_index(unsigned int level, unsigned int idx)
         return bidx;
 }
 
-static bool early_match_name(const char *name, int namelen,
+static bool early_match_name(const char *name, size_t namelen,
                         f2fs_hash_t namehash, struct f2fs_dir_entry *de)
 {
         if (le16_to_cpu(de->name_len) != namelen)
@@ -88,7 +88,7 @@ static bool early_match_name(const char *name, int namelen,
 }
 
 static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
-                        const char *name, int namelen, int *max_slots,
+                        const char *name, size_t namelen, int *max_slots,
                         f2fs_hash_t namehash, struct page **res_page)
 {
         struct f2fs_dir_entry *de;
@@ -127,7 +127,7 @@ found:
 }
 
 static struct f2fs_dir_entry *find_in_level(struct inode *dir,
-                unsigned int level, const char *name, int namelen,
+                unsigned int level, const char *name, size_t namelen,
                         f2fs_hash_t namehash, struct page **res_page)
 {
         int s = GET_DENTRY_SLOTS(namelen);
@@ -182,7 +182,7 @@ struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
                         struct qstr *child, struct page **res_page)
 {
         const char *name = child->name;
-        int namelen = child->len;
+        size_t namelen = child->len;
         unsigned long npages = dir_blocks(dir);
         struct f2fs_dir_entry *de = NULL;
         f2fs_hash_t name_hash;
@@ -383,7 +383,7 @@ int f2fs_add_link(struct dentry *dentry, struct inode *inode)
         struct inode *dir = dentry->d_parent->d_inode;
         struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
         const char *name = dentry->d_name.name;
-        int namelen = dentry->d_name.len;
+        size_t namelen = dentry->d_name.len;
         struct page *dentry_page = NULL;
         struct f2fs_dentry_block *dentry_blk = NULL;
         int slots = GET_DENTRY_SLOTS(namelen);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a18d63db2fb6..13c6dfbb7183 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -881,7 +881,7 @@ int f2fs_sync_fs(struct super_block *, int);
 /*
  * hash.c
  */
-f2fs_hash_t f2fs_dentry_hash(const char *, int);
+f2fs_hash_t f2fs_dentry_hash(const char *, size_t);
 
 /*
  * node.c
diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
index 6977415c52fc..6eb8d269b53b 100644
--- a/fs/f2fs/hash.c
+++ b/fs/f2fs/hash.c
@@ -42,7 +42,7 @@ static void TEA_transform(unsigned int buf[4], unsigned int const in[])
         buf[1] += b1;
 }
 
-static void str2hashbuf(const char *msg, int len, unsigned int *buf, int num)
+static void str2hashbuf(const char *msg, size_t len, unsigned int *buf, int num)
 {
         unsigned pad, val;
         int i;
@@ -69,7 +69,7 @@ static void str2hashbuf(const char *msg, int len, unsigned int *buf, int num)
                 *buf++ = pad;
 }
 
-f2fs_hash_t f2fs_dentry_hash(const char *name, int len)
+f2fs_hash_t f2fs_dentry_hash(const char *name, size_t len)
 {
         __u32 hash;
         f2fs_hash_t f2fs_hash;
@@ -87,11 +87,13 @@ f2fs_hash_t f2fs_dentry_hash(const char *name, int len)
         buf[3] = 0x10325476;
 
         p = name;
-        while (len > 0) {
+        while (1) {
                 str2hashbuf(p, len, in, 4);
                 TEA_transform(buf, in);
-                len -= 16;
                 p += 16;
+                if (len <= 16)
+                        break;
+                len -= 16;
         }
         hash = buf[0];
         f2fs_hash = cpu_to_le32(hash & ~F2FS_HASH_COL_BIT);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index b42389f80011..1a49b881bac0 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -77,8 +77,8 @@ fail:
 
 static int is_multimedia_file(const unsigned char *s, const char *sub)
 {
-        int slen = strlen(s);
-        int sublen = strlen(sub);
+        size_t slen = strlen(s);
+        size_t sublen = strlen(sub);
         int ret;
 
         if (sublen > slen)
@@ -250,7 +250,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
         struct super_block *sb = dir->i_sb;
         struct f2fs_sb_info *sbi = F2FS_SB(sb);
         struct inode *inode;
-        unsigned symlen = strlen(symname) + 1;
+        size_t symlen = strlen(symname) + 1;
         int err;
 
         f2fs_balance_fs(sbi);
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 7d52e8dc0c59..940136a3d3a6 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -208,7 +208,7 @@ int f2fs_getxattr(struct inode *inode, int name_index, const char *name,
         struct page *page;
         void *base_addr;
         int error = 0, found = 0;
-        int value_len, name_len;
+        size_t value_len, name_len;
 
         if (name == NULL)
                 return -EINVAL;
@@ -304,7 +304,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
         struct f2fs_xattr_entry *here, *last;
         struct page *page;
         void *base_addr;
-        int error, found, free, name_len, newsize;
+        int error, found, free, newsize;
+        size_t name_len;
         char *pval;
 
         if (name == NULL)