diff options
| author | Christoph Hellwig <hch@lst.de> | 2006-06-28 04:26:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-28 14:59:04 -0700 |
| commit | f5e54d6e53a20cef45af7499e86164f0e0d16bb2 (patch) | |
| tree | cb92acbb89b84796261bf5563182261ec5654127 /mm | |
| parent | a052b68b1e7a31f1e6a721290035e9deb0f6fed9 (diff) | |
| download | lwn-f5e54d6e53a20cef45af7499e86164f0e0d16bb2.tar.gz lwn-f5e54d6e53a20cef45af7499e86164f0e0d16bb2.zip | |
[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.c | 4 | ||||
| -rw-r--r-- | mm/filemap_xip.c | 2 | ||||
| -rw-r--r-- | mm/shmem.c | 4 | ||||
| -rw-r--r-- | mm/swap_state.c | 2 |
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, |