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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/hugetlbfs
parent754661f143e70d66eae6c48532ca245aa05dec0e (diff)
downloadlwn-92e1d5be91a0e3ffa5c4697eeb09b2aa22792122.tar.gz
lwn-92e1d5be91a0e3ffa5c4697eeb09b2aa22792122.zip
[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/hugetlbfs')
-rw-r--r--fs/hugetlbfs/inode.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index e6bd553fdc4c..26ba81fc7fab 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -36,8 +36,8 @@
static struct super_operations hugetlbfs_ops;
static const struct address_space_operations hugetlbfs_aops;
const struct file_operations hugetlbfs_file_operations;
-static struct inode_operations hugetlbfs_dir_inode_operations;
-static struct inode_operations hugetlbfs_inode_operations;
+static const struct inode_operations hugetlbfs_dir_inode_operations;
+static const struct inode_operations hugetlbfs_inode_operations;
static struct backing_dev_info hugetlbfs_backing_dev_info = {
.ra_pages = 0, /* No readahead */
@@ -563,7 +563,7 @@ const struct file_operations hugetlbfs_file_operations = {
.get_unmapped_area = hugetlb_get_unmapped_area,
};
-static struct inode_operations hugetlbfs_dir_inode_operations = {
+static const struct inode_operations hugetlbfs_dir_inode_operations = {
.create = hugetlbfs_create,
.lookup = simple_lookup,
.link = simple_link,
@@ -576,7 +576,7 @@ static struct inode_operations hugetlbfs_dir_inode_operations = {
.setattr = hugetlbfs_setattr,
};
-static struct inode_operations hugetlbfs_inode_operations = {
+static const struct inode_operations hugetlbfs_inode_operations = {
.setattr = hugetlbfs_setattr,
};