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authorChristoph Hellwig <hch@lst.de>2006-06-28 04:26:44 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-28 14:59:04 -0700
commitf5e54d6e53a20cef45af7499e86164f0e0d16bb2 (patch)
treecb92acbb89b84796261bf5563182261ec5654127 /mm
parenta052b68b1e7a31f1e6a721290035e9deb0f6fed9 (diff)
downloadlinux-f5e54d6e53a20cef45af7499e86164f0e0d16bb2.tar.bz2
[PATCH] mark address_space_operations const
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/filemap.c4
-rw-r--r--mm/filemap_xip.c2
-rw-r--r--mm/shmem.c4
-rw-r--r--mm/swap_state.c2
4 files changed, 6 insertions, 6 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index d504d6e98886..4082b3b3cea7 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2069,7 +2069,7 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
{
struct file *file = iocb->ki_filp;
struct address_space * mapping = file->f_mapping;
- struct address_space_operations *a_ops = mapping->a_ops;
+ const struct address_space_operations *a_ops = mapping->a_ops;
struct inode *inode = mapping->host;
long status = 0;
struct page *page;
@@ -2219,7 +2219,7 @@ __generic_file_aio_write_nolock(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t *ppos)
{
struct file *file = iocb->ki_filp;
- struct address_space * mapping = file->f_mapping;
+ const struct address_space * mapping = file->f_mapping;
size_t ocount; /* original count */
size_t count; /* after file limit checks */
struct inode *inode = mapping->host;
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index b960ac8e5918..b4fd0d7c9bfb 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -273,7 +273,7 @@ __xip_file_write(struct file *filp, const char __user *buf,
size_t count, loff_t pos, loff_t *ppos)
{
struct address_space * mapping = filp->f_mapping;
- struct address_space_operations *a_ops = mapping->a_ops;
+ const struct address_space_operations *a_ops = mapping->a_ops;
struct inode *inode = mapping->host;
long status = 0;
struct page *page;
diff --git a/mm/shmem.c b/mm/shmem.c
index 38bc3334f263..ea64c07cbe72 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -174,7 +174,7 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
}
static struct super_operations shmem_ops;
-static struct address_space_operations shmem_aops;
+static const struct address_space_operations shmem_aops;
static struct file_operations shmem_file_operations;
static struct inode_operations shmem_inode_operations;
static struct inode_operations shmem_dir_inode_operations;
@@ -2162,7 +2162,7 @@ static void destroy_inodecache(void)
printk(KERN_INFO "shmem_inode_cache: not all structures were freed\n");
}
-static struct address_space_operations shmem_aops = {
+static const struct address_space_operations shmem_aops = {
.writepage = shmem_writepage,
.set_page_dirty = __set_page_dirty_nobuffers,
#ifdef CONFIG_TMPFS
diff --git a/mm/swap_state.c b/mm/swap_state.c
index e0e1583f32c2..7535211bb495 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -24,7 +24,7 @@
* vmscan's shrink_list, to make sync_page look nicer, and to allow
* future use of radix_tree tags in the swap cache.
*/
-static struct address_space_operations swap_aops = {
+static const struct address_space_operations swap_aops = {
.writepage = swap_writepage,
.sync_page = block_sync_page,
.set_page_dirty = __set_page_dirty_nobuffers,