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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 11:55:40 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 20:48:46 +0300
commitc5ef1c42c51b1b5b4a401a6517bdda30933ddbaf (patch)
treee1a9804a8af427f700aaba4b386cf8679b317e83 /fs/sysfs
parent92e1d5be91a0e3ffa5c4697eeb09b2aa22792122 (diff)
downloadlinux-c5ef1c42c51b1b5b4a401a6517bdda30933ddbaf.tar.xz
[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 <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/sysfs')
-rw-r--r--fs/sysfs/dir.c2
-rw-r--r--fs/sysfs/inode.c2
-rw-r--r--fs/sysfs/symlink.c2
-rw-r--r--fs/sysfs/sysfs.h4
4 files changed, 5 insertions, 5 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 9e95e7abaf69..8813990304fe 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -296,7 +296,7 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(err);
}
-struct inode_operations sysfs_dir_inode_operations = {
+const struct inode_operations sysfs_dir_inode_operations = {
.lookup = sysfs_lookup,
.setattr = sysfs_setattr,
};
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 542d2bcc73df..dd1344b007f5 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -29,7 +29,7 @@ static struct backing_dev_info sysfs_backing_dev_info = {
.capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
};
-static struct inode_operations sysfs_inode_operations ={
+static const struct inode_operations sysfs_inode_operations ={
.setattr = sysfs_setattr,
};
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 4869f611192f..7b9c5bfde920 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -181,7 +181,7 @@ static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *co
free_page((unsigned long)page);
}
-struct inode_operations sysfs_symlink_inode_operations = {
+const struct inode_operations sysfs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = sysfs_follow_link,
.put_link = sysfs_put_link,
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index fe1cbfd208ed..d976b0005549 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -26,8 +26,8 @@ extern struct super_block * sysfs_sb;
extern const struct file_operations sysfs_dir_operations;
extern const struct file_operations sysfs_file_operations;
extern const struct file_operations bin_fops;
-extern struct inode_operations sysfs_dir_inode_operations;
-extern struct inode_operations sysfs_symlink_inode_operations;
+extern const struct inode_operations sysfs_dir_inode_operations;
+extern const struct inode_operations sysfs_symlink_inode_operations;
struct sysfs_symlink {
char * link_name;