[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>
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 2fe82ab..6cbf2ae 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -160,7 +160,7 @@
return single_open(file, ppc_rtas_sensors_show, NULL);
}
-struct file_operations ppc_rtas_sensors_operations = {
+const struct file_operations ppc_rtas_sensors_operations = {
.open = sensors_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -172,7 +172,7 @@
return single_open(file, ppc_rtas_poweron_show, NULL);
}
-struct file_operations ppc_rtas_poweron_operations = {
+const struct file_operations ppc_rtas_poweron_operations = {
.open = poweron_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -185,7 +185,7 @@
return single_open(file, ppc_rtas_progress_show, NULL);
}
-struct file_operations ppc_rtas_progress_operations = {
+const struct file_operations ppc_rtas_progress_operations = {
.open = progress_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -198,7 +198,7 @@
return single_open(file, ppc_rtas_clock_show, NULL);
}
-struct file_operations ppc_rtas_clock_operations = {
+const struct file_operations ppc_rtas_clock_operations = {
.open = clock_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -211,7 +211,7 @@
return single_open(file, ppc_rtas_tone_freq_show, NULL);
}
-struct file_operations ppc_rtas_tone_freq_operations = {
+const struct file_operations ppc_rtas_tone_freq_operations = {
.open = tone_freq_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -224,7 +224,7 @@
return single_open(file, ppc_rtas_tone_volume_show, NULL);
}
-struct file_operations ppc_rtas_tone_volume_operations = {
+const struct file_operations ppc_rtas_tone_volume_operations = {
.open = tone_volume_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -237,7 +237,7 @@
return single_open(file, ppc_rtas_rmo_buf_show, NULL);
}
-struct file_operations ppc_rtas_rmo_buf_ops = {
+const struct file_operations ppc_rtas_rmo_buf_ops = {
.open = rmo_buf_open,
.read = seq_read,
.llseek = seq_lseek,