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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 00:55:31 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 09:48:44 -0800
commit5dfe4c964a0dd7bb3a1d64a4166835a153146207 (patch)
tree2fb2fd8c09922be4f40a5a9ac50b537b1d780e27 /arch/powerpc/kernel/rtas_flash.c
parent540473208f8ac71c25a87e1a2670c3c18dd4d6db (diff)
downloadop-kernel-dev-5dfe4c964a0dd7bb3a1d64a4166835a153146207.zip
op-kernel-dev-5dfe4c964a0dd7bb3a1d64a4166835a153146207.tar.gz
[PATCH] mark struct file_operations const 2
Many struct file_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. [akpm@osdl.org: sparc64 fix] 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 'arch/powerpc/kernel/rtas_flash.c')
-rw-r--r--arch/powerpc/kernel/rtas_flash.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 65e4ebe..f72118c 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -702,7 +702,7 @@ static int initialize_flash_pde_data(const char *rtas_call_name,
}
static struct proc_dir_entry *create_flash_pde(const char *filename,
- struct file_operations *fops)
+ const struct file_operations *fops)
{
struct proc_dir_entry *ent = NULL;
@@ -715,21 +715,21 @@ static struct proc_dir_entry *create_flash_pde(const char *filename,
return ent;
}
-static struct file_operations rtas_flash_operations = {
+static const struct file_operations rtas_flash_operations = {
.read = rtas_flash_read,
.write = rtas_flash_write,
.open = rtas_excl_open,
.release = rtas_flash_release,
};
-static struct file_operations manage_flash_operations = {
+static const struct file_operations manage_flash_operations = {
.read = manage_flash_read,
.write = manage_flash_write,
.open = rtas_excl_open,
.release = rtas_excl_release,
};
-static struct file_operations validate_flash_operations = {
+static const struct file_operations validate_flash_operations = {
.read = validate_flash_read,
.write = validate_flash_write,
.open = rtas_excl_open,
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