[PATCH] struct seq_operations and struct file_operations constification

- move some file_operations structs into the .rodata section

 - move static strings from policy_types[] array into the .rodata section

 - fix generic seq_operations usages, so that those structs may be defined
   as "const" as well

[akpm@osdl.org: couple of fixes]
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/mempolicy.c

@@ -1707,8 +1707,8 @@ void mpol_rebind_mm(struct mm_struct *mm, nodemask_t *new)
  * Display pages allocated per node and memory policy via /proc.
  */
 
-static const char *policy_types[] = { "default", "prefer", "bind",
-				      "interleave" };
+static const char * const policy_types[] =
+	{ "default", "prefer", "bind", "interleave" };
 
 /*
  * Convert a mempolicy into a string.

mm/page_alloc.c

@@ -83,7 +83,7 @@ int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {
 
 EXPORT_SYMBOL(totalram_pages);
 
-static char *zone_names[MAX_NR_ZONES] = {
+static char * const zone_names[MAX_NR_ZONES] = {
 	 "DMA",
 #ifdef CONFIG_ZONE_DMA32
 	 "DMA32",

mm/shmem.c

@@ -177,7 +177,7 @@ static inline void shmem_unacct_blocks(unsigned long flags, long pages)
 
 static struct super_operations shmem_ops;
 static const struct address_space_operations shmem_aops;
-static struct file_operations shmem_file_operations;
+static const struct file_operations shmem_file_operations;
 static struct inode_operations shmem_inode_operations;
 static struct inode_operations shmem_dir_inode_operations;
 static struct inode_operations shmem_special_inode_operations;
@@ -2319,7 +2319,7 @@ static const struct address_space_operations shmem_aops = {
 	.migratepage	= migrate_page,
 };
 
-static struct file_operations shmem_file_operations = {
+static const struct file_operations shmem_file_operations = {
 	.mmap		= shmem_mmap,
 #ifdef CONFIG_TMPFS
 	.llseek		= generic_file_llseek,

mm/slab.c

@@ -4142,7 +4142,7 @@ static int s_show(struct seq_file *m, void *p)
  * + further values on SMP and with statistics enabled
  */
 
-struct seq_operations slabinfo_op = {
+const struct seq_operations slabinfo_op = {
 	.start = s_start,
 	.next = s_next,
 	.stop = s_stop,
@@ -4340,7 +4340,7 @@ static int leaks_show(struct seq_file *m, void *p)
 	return 0;
 }
 
-struct seq_operations slabstats_op = {
+const struct seq_operations slabstats_op = {
 	.start = leaks_start,
 	.next = s_next,
 	.stop = s_stop,

mm/swapfile.c

@@ -1368,7 +1368,7 @@ static int swap_show(struct seq_file *swap, void *v)
 	return 0;
 }
 
-static struct seq_operations swaps_op = {
+static const struct seq_operations swaps_op = {
 	.start =	swap_start,
 	.next =		swap_next,
 	.stop =		swap_stop,
@@ -1380,7 +1380,7 @@ static int swaps_open(struct inode *inode, struct file *file)
 	return seq_open(file, &swaps_op);
 }
 
-static struct file_operations proc_swaps_operations = {
+static const struct file_operations proc_swaps_operations = {
 	.open		= swaps_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,

mm/vmstat.c

@@ -430,7 +430,7 @@ static int frag_show(struct seq_file *m, void *arg)
 	return 0;
 }
 
-struct seq_operations fragmentation_op = {
+const struct seq_operations fragmentation_op = {
 	.start	= frag_start,
 	.next	= frag_next,
 	.stop	= frag_stop,
@@ -452,7 +452,7 @@ struct seq_operations fragmentation_op = {
 #define TEXTS_FOR_ZONES(xx) xx "_dma", TEXT_FOR_DMA32(xx) xx "_normal", \
 					TEXT_FOR_HIGHMEM(xx)
 
-static char *vmstat_text[] = {
+static const char * const vmstat_text[] = {
 	/* Zoned VM counters */
 	"nr_anon_pages",
 	"nr_mapped",
@@ -597,7 +597,7 @@ static int zoneinfo_show(struct seq_file *m, void *arg)
 	return 0;
 }
 
-struct seq_operations zoneinfo_op = {
+const struct seq_operations zoneinfo_op = {
 	.start	= frag_start, /* iterate over all zones. The same as in
 			       * fragmentation. */
 	.next	= frag_next,
@@ -660,7 +660,7 @@ static void vmstat_stop(struct seq_file *m, void *arg)
 	m->private = NULL;
 }
 
-struct seq_operations vmstat_op = {
+const struct seq_operations vmstat_op = {
 	.start	= vmstat_start,
 	.next	= vmstat_next,
 	.stop	= vmstat_stop,