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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 00:55:39 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:46 -0800
commit92e1d5be91a0e3ffa5c4697eeb09b2aa22792122 (patch)
tree4eb22a9f6c38e9f4cc2a5100cd6659b0af08b7ae /fs/minix
parent754661f143e70d66eae6c48532ca245aa05dec0e (diff)
downloadop-kernel-dev-92e1d5be91a0e3ffa5c4697eeb09b2aa22792122.zip
op-kernel-dev-92e1d5be91a0e3ffa5c4697eeb09b2aa22792122.tar.gz
[PATCH] mark struct inode_operations const 2
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/minix')
-rw-r--r--fs/minix/file.c2
-rw-r--r--fs/minix/inode.c2
-rw-r--r--fs/minix/minix.h4
-rw-r--r--fs/minix/namei.c2
4 files changed, 5 insertions, 5 deletions
diff --git a/fs/minix/file.c b/fs/minix/file.c
index 40eac2e..f92baa1 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -26,7 +26,7 @@ const struct file_operations minix_file_operations = {
.sendfile = generic_file_sendfile,
};
-struct inode_operations minix_file_inode_operations = {
+const struct inode_operations minix_file_inode_operations = {
.truncate = minix_truncate,
.getattr = minix_getattr,
};
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index 9ddfcc1..e56822b 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -369,7 +369,7 @@ static const struct address_space_operations minix_aops = {
.bmap = minix_bmap
};
-static struct inode_operations minix_symlink_inode_operations = {
+static const struct inode_operations minix_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index e016ee91..73ef84f 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -75,8 +75,8 @@ extern struct minix_dir_entry *minix_dotdot(struct inode*, struct page**);
extern ino_t minix_inode_by_name(struct dentry*);
extern int minix_sync_file(struct file *, struct dentry *, int);
-extern struct inode_operations minix_file_inode_operations;
-extern struct inode_operations minix_dir_inode_operations;
+extern const struct inode_operations minix_file_inode_operations;
+extern const struct inode_operations minix_dir_inode_operations;
extern const struct file_operations minix_file_operations;
extern const struct file_operations minix_dir_operations;
extern struct dentry_operations minix_dentry_operations;
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 299bb66..f4aa7a9 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -291,7 +291,7 @@ out:
/*
* directories can handle most operations...
*/
-struct inode_operations minix_dir_inode_operations = {
+const struct inode_operations minix_dir_inode_operations = {
.create = minix_create,
.lookup = minix_lookup,
.link = minix_link,
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