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Date: Mon, 7 Dec 2015 21:46:04 +0100
From: Julia Lawall <Julia.Lawall@...6.fr>
To: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] fat: constify fatent_operations structures
The fatent_operations structures are never modified, so declare them as
const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
---
fs/fat/fat.h | 2 +-
fs/fat/fatent.c | 24 ++++++++++++------------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 4307cd4..e6b764a 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -87,7 +87,7 @@ struct msdos_sb_info {
unsigned int vol_id; /*volume ID*/
int fatent_shift;
- struct fatent_operations *fatent_ops;
+ const struct fatent_operations *fatent_ops;
struct inode *fat_inode;
struct inode *fsinfo_inode;
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 8226557..1d9a8c4 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -99,7 +99,7 @@ err:
static int fat_ent_bread(struct super_block *sb, struct fat_entry *fatent,
int offset, sector_t blocknr)
{
- struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
+ const struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
WARN_ON(blocknr < MSDOS_SB(sb)->fat_start);
fatent->fat_inode = MSDOS_SB(sb)->fat_inode;
@@ -246,7 +246,7 @@ static int fat32_ent_next(struct fat_entry *fatent)
return 0;
}
-static struct fatent_operations fat12_ops = {
+static const struct fatent_operations fat12_ops = {
.ent_blocknr = fat12_ent_blocknr,
.ent_set_ptr = fat12_ent_set_ptr,
.ent_bread = fat12_ent_bread,
@@ -255,7 +255,7 @@ static struct fatent_operations fat12_ops = {
.ent_next = fat12_ent_next,
};
-static struct fatent_operations fat16_ops = {
+static const struct fatent_operations fat16_ops = {
.ent_blocknr = fat_ent_blocknr,
.ent_set_ptr = fat16_ent_set_ptr,
.ent_bread = fat_ent_bread,
@@ -264,7 +264,7 @@ static struct fatent_operations fat16_ops = {
.ent_next = fat16_ent_next,
};
-static struct fatent_operations fat32_ops = {
+static const struct fatent_operations fat32_ops = {
.ent_blocknr = fat_ent_blocknr,
.ent_set_ptr = fat32_ent_set_ptr,
.ent_bread = fat_ent_bread,
@@ -320,7 +320,7 @@ static inline int fat_ent_update_ptr(struct super_block *sb,
int offset, sector_t blocknr)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- struct fatent_operations *ops = sbi->fatent_ops;
+ const struct fatent_operations *ops = sbi->fatent_ops;
struct buffer_head **bhs = fatent->bhs;
/* Is this fatent's blocks including this entry? */
@@ -349,7 +349,7 @@ int fat_ent_read(struct inode *inode, struct fat_entry *fatent, int entry)
{
struct super_block *sb = inode->i_sb;
struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
- struct fatent_operations *ops = sbi->fatent_ops;
+ const struct fatent_operations *ops = sbi->fatent_ops;
int err, offset;
sector_t blocknr;
@@ -407,7 +407,7 @@ int fat_ent_write(struct inode *inode, struct fat_entry *fatent,
int new, int wait)
{
struct super_block *sb = inode->i_sb;
- struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
+ const struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
int err;
ops->ent_put(fatent, new);
@@ -432,7 +432,7 @@ static inline int fat_ent_next(struct msdos_sb_info *sbi,
static inline int fat_ent_read_block(struct super_block *sb,
struct fat_entry *fatent)
{
- struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
+ const struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
sector_t blocknr;
int offset;
@@ -463,7 +463,7 @@ int fat_alloc_clusters(struct inode *inode, int *cluster, int nr_cluster)
{
struct super_block *sb = inode->i_sb;
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- struct fatent_operations *ops = sbi->fatent_ops;
+ const struct fatent_operations *ops = sbi->fatent_ops;
struct fat_entry fatent, prev_ent;
struct buffer_head *bhs[MAX_BUF_PER_PAGE];
int i, count, err, nr_bhs, idx_clus;
@@ -551,7 +551,7 @@ int fat_free_clusters(struct inode *inode, int cluster)
{
struct super_block *sb = inode->i_sb;
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- struct fatent_operations *ops = sbi->fatent_ops;
+ const struct fatent_operations *ops = sbi->fatent_ops;
struct fat_entry fatent;
struct buffer_head *bhs[MAX_BUF_PER_PAGE];
int i, err, nr_bhs;
@@ -636,7 +636,7 @@ EXPORT_SYMBOL_GPL(fat_free_clusters);
static void fat_ent_reada(struct super_block *sb, struct fat_entry *fatent,
unsigned long reada_blocks)
{
- struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
+ const struct fatent_operations *ops = MSDOS_SB(sb)->fatent_ops;
sector_t blocknr;
int i, offset;
@@ -649,7 +649,7 @@ static void fat_ent_reada(struct super_block *sb, struct fat_entry *fatent,
int fat_count_free_clusters(struct super_block *sb)
{
struct msdos_sb_info *sbi = MSDOS_SB(sb);
- struct fatent_operations *ops = sbi->fatent_ops;
+ const struct fatent_operations *ops = sbi->fatent_ops;
struct fat_entry fatent;
unsigned long reada_blocks, reada_mask, cur_block;
int err = 0, free;
--
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