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Date: Tue, 08 Dec 2015 17:35:21 +0900
From: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@...6.fr>,
kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fat: constify fatent_operations structures
Julia Lawall <Julia.Lawall@...6.fr> writes:
> The fatent_operations structures are never modified, so declare them as
> const.
>
> Done with the help of Coccinelle.
Looks good. Thanks.
Acked-by: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
> 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;
>
--
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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