From c5ef1c42c51b1b5b4a401a6517bdda30933ddbaf Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 12 Feb 2007 00:55:40 -0800 Subject: [PATCH] mark struct inode_operations const 3 Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/sysv/file.c | 2 +- fs/sysv/inode.c | 2 +- fs/sysv/namei.c | 2 +- fs/sysv/symlink.c | 2 +- fs/sysv/sysv.h | 6 +++--- 5 files changed, 7 insertions(+), 7 deletions(-) (limited to 'fs/sysv') diff --git a/fs/sysv/file.c b/fs/sysv/file.c index 47a4b728f15b..0732ddb9020b 100644 --- a/fs/sysv/file.c +++ b/fs/sysv/file.c @@ -30,7 +30,7 @@ const struct file_operations sysv_file_operations = { .sendfile = generic_file_sendfile, }; -struct inode_operations sysv_file_inode_operations = { +const struct inode_operations sysv_file_inode_operations = { .truncate = sysv_truncate, .getattr = sysv_getattr, }; diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index ead9864567e3..13dd75c4bc85 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -142,7 +142,7 @@ static inline void write3byte(struct sysv_sb_info *sbi, } } -static struct inode_operations sysv_symlink_inode_operations = { +static const struct inode_operations sysv_symlink_inode_operations = { .readlink = generic_readlink, .follow_link = page_follow_link_light, .put_link = page_put_link, diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c index f7c08db8e34c..4e48abbd2b5d 100644 --- a/fs/sysv/namei.c +++ b/fs/sysv/namei.c @@ -292,7 +292,7 @@ out: /* * directories can handle most operations... */ -struct inode_operations sysv_dir_inode_operations = { +const struct inode_operations sysv_dir_inode_operations = { .create = sysv_create, .lookup = sysv_lookup, .link = sysv_link, diff --git a/fs/sysv/symlink.c b/fs/sysv/symlink.c index b85ce61d635c..00d2f8a43e4e 100644 --- a/fs/sysv/symlink.c +++ b/fs/sysv/symlink.c @@ -14,7 +14,7 @@ static void *sysv_follow_link(struct dentry *dentry, struct nameidata *nd) return NULL; } -struct inode_operations sysv_fast_symlink_inode_operations = { +const struct inode_operations sysv_fast_symlink_inode_operations = { .readlink = generic_readlink, .follow_link = sysv_follow_link, }; diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h index dcb18b2171fe..a320edcf541e 100644 --- a/fs/sysv/sysv.h +++ b/fs/sysv/sysv.h @@ -159,9 +159,9 @@ extern struct sysv_dir_entry *sysv_dotdot(struct inode *, struct page **); extern ino_t sysv_inode_by_name(struct dentry *); -extern struct inode_operations sysv_file_inode_operations; -extern struct inode_operations sysv_dir_inode_operations; -extern struct inode_operations sysv_fast_symlink_inode_operations; +extern const struct inode_operations sysv_file_inode_operations; +extern const struct inode_operations sysv_dir_inode_operations; +extern const struct inode_operations sysv_fast_symlink_inode_operations; extern const struct file_operations sysv_file_operations; extern const struct file_operations sysv_dir_operations; extern const struct address_space_operations sysv_aops; -- cgit v1.2.3-58-ga151