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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/gfs2
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/gfs2')
-rw-r--r--fs/gfs2/ops_inode.c8
-rw-r--r--fs/gfs2/ops_inode.h8
2 files changed, 8 insertions, 8 deletions
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index f40a848..60f47bf 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -1115,7 +1115,7 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
return gfs2_ea_remove(GFS2_I(dentry->d_inode), &er);
}
-struct inode_operations gfs2_file_iops = {
+const struct inode_operations gfs2_file_iops = {
.permission = gfs2_permission,
.setattr = gfs2_setattr,
.getattr = gfs2_getattr,
@@ -1125,7 +1125,7 @@ struct inode_operations gfs2_file_iops = {
.removexattr = gfs2_removexattr,
};
-struct inode_operations gfs2_dev_iops = {
+const struct inode_operations gfs2_dev_iops = {
.permission = gfs2_permission,
.setattr = gfs2_setattr,
.getattr = gfs2_getattr,
@@ -1135,7 +1135,7 @@ struct inode_operations gfs2_dev_iops = {
.removexattr = gfs2_removexattr,
};
-struct inode_operations gfs2_dir_iops = {
+const struct inode_operations gfs2_dir_iops = {
.create = gfs2_create,
.lookup = gfs2_lookup,
.link = gfs2_link,
@@ -1154,7 +1154,7 @@ struct inode_operations gfs2_dir_iops = {
.removexattr = gfs2_removexattr,
};
-struct inode_operations gfs2_symlink_iops = {
+const struct inode_operations gfs2_symlink_iops = {
.readlink = gfs2_readlink,
.follow_link = gfs2_follow_link,
.permission = gfs2_permission,
diff --git a/fs/gfs2/ops_inode.h b/fs/gfs2/ops_inode.h
index b15acb4..34f0caa 100644
--- a/fs/gfs2/ops_inode.h
+++ b/fs/gfs2/ops_inode.h
@@ -12,9 +12,9 @@
#include <linux/fs.h>
-extern struct inode_operations gfs2_file_iops;
-extern struct inode_operations gfs2_dir_iops;
-extern struct inode_operations gfs2_symlink_iops;
-extern struct inode_operations gfs2_dev_iops;
+extern const struct inode_operations gfs2_file_iops;
+extern const struct inode_operations gfs2_dir_iops;
+extern const struct inode_operations gfs2_symlink_iops;
+extern const struct inode_operations gfs2_dev_iops;
#endif /* __OPS_INODE_DOT_H__ */
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