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authorHelge Deller <deller@gmx.de>2006-12-06 20:40:36 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:46 -0800
commit15ad7cdcfd76450d4beebc789ec646664238184d (patch)
tree279d05a76ae0906c23ee2de8c5684d95d9886ad3
parent4a08a9f68168e547c2baf100020e9b96cae5fbd1 (diff)
downloadop-kernel-dev-15ad7cdcfd76450d4beebc789ec646664238184d.zip
op-kernel-dev-15ad7cdcfd76450d4beebc789ec646664238184d.tar.gz
[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>
-rw-r--r--fs/seq_file.c4
-rw-r--r--include/linux/cpuset.h2
-rw-r--r--include/linux/mmzone.h2
-rw-r--r--include/linux/relay.h2
-rw-r--r--include/linux/sched.h2
-rw-r--r--include/linux/seq_file.h4
-rw-r--r--kernel/configs.c2
-rw-r--r--kernel/cpuset.c4
-rw-r--r--kernel/dma.c2
-rw-r--r--kernel/futex.c2
-rw-r--r--kernel/kallsyms.c4
-rw-r--r--kernel/lockdep_proc.c6
-rw-r--r--kernel/module.c2
-rw-r--r--kernel/power/user.c2
-rw-r--r--kernel/profile.c2
-rw-r--r--kernel/relay.c2
-rw-r--r--kernel/resource.c6
-rw-r--r--kernel/sched.c2
-rw-r--r--kernel/sysctl.c2
-rw-r--r--mm/mempolicy.c4
-rw-r--r--mm/page_alloc.c2
-rw-r--r--mm/shmem.c4
-rw-r--r--mm/slab.c4
-rw-r--r--mm/swapfile.c4
-rw-r--r--mm/vmstat.c8
25 files changed, 40 insertions, 40 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 555b9ac..10690aa 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -26,7 +26,7 @@
* ERR_PTR(error). In the end of sequence they return %NULL. ->show()
* returns 0 in case of success and negative number in case of error.
*/
-int seq_open(struct file *file, struct seq_operations *op)
+int seq_open(struct file *file, const struct seq_operations *op)
{
struct seq_file *p = file->private_data;
@@ -408,7 +408,7 @@ EXPORT_SYMBOL(single_open);
int single_release(struct inode *inode, struct file *file)
{
- struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
+ const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
int res = seq_release(inode, file);
kfree(op);
return res;
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 748d2c9..8821e1f 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -46,7 +46,7 @@ extern int cpuset_excl_nodes_overlap(const struct task_struct *p);
extern int cpuset_memory_pressure_enabled;
extern void __cpuset_memory_pressure_bump(void);
-extern struct file_operations proc_cpuset_operations;
+extern const struct file_operations proc_cpuset_operations;
extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer);
extern void cpuset_lock(void);
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index da6002d..e339a73 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -278,7 +278,7 @@ struct zone {
/*
* rarely used fields:
*/
- char *name;
+ const char *name;
} ____cacheline_internodealigned_in_smp;
/*
diff --git a/include/linux/relay.h b/include/linux/relay.h
index 0e3d91b..c6a48bf 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -274,7 +274,7 @@ static inline void subbuf_start_reserve(struct rchan_buf *buf,
/*
* exported relay file operations, kernel/relay.c
*/
-extern struct file_operations relay_file_operations;
+extern const struct file_operations relay_file_operations;
#endif /* _LINUX_RELAY_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3a76724..dede82c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -573,7 +573,7 @@ struct sched_info {
#endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
#ifdef CONFIG_SCHEDSTATS
-extern struct file_operations proc_schedstat_operations;
+extern const struct file_operations proc_schedstat_operations;
#endif /* CONFIG_SCHEDSTATS */
#ifdef CONFIG_TASK_DELAY_ACCT
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index b95f6eb..3e3cccb 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -20,7 +20,7 @@ struct seq_file {
loff_t index;
loff_t version;
struct mutex lock;
- struct seq_operations *op;
+ const struct seq_operations *op;
void *private;
};
@@ -31,7 +31,7 @@ struct seq_operations {
int (*show) (struct seq_file *m, void *v);
};
-int seq_open(struct file *, struct seq_operations *);
+int seq_open(struct file *, const struct seq_operations *);
ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
loff_t seq_lseek(struct file *, loff_t, int);
int seq_release(struct inode *, struct file *);
diff --git a/kernel/configs.c b/kernel/configs.c
index f9e3197..8fa1fb2 100644
--- a/kernel/configs.c
+++ b/kernel/configs.c
@@ -75,7 +75,7 @@ ikconfig_read_current(struct file *file, char __user *buf,
return count;
}
-static struct file_operations ikconfig_file_ops = {
+static const struct file_operations ikconfig_file_ops = {
.owner = THIS_MODULE,
.read = ikconfig_read_current,
};
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 9b62b4c..4ef1d29 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1531,7 +1531,7 @@ static int cpuset_rename(struct inode *old_dir, struct dentry *old_dentry,
return simple_rename(old_dir, old_dentry, new_dir, new_dentry);
}
-static struct file_operations cpuset_file_operations = {
+static const struct file_operations cpuset_file_operations = {
.read = cpuset_file_read,
.write = cpuset_file_write,
.llseek = generic_file_llseek,
@@ -2605,7 +2605,7 @@ static int cpuset_open(struct inode *inode, struct file *file)
return single_open(file, proc_cpuset_show, pid);
}
-struct file_operations proc_cpuset_operations = {
+const struct file_operations proc_cpuset_operations = {
.open = cpuset_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/dma.c b/kernel/dma.c
index 2020644..937b13c 100644
--- a/kernel/dma.c
+++ b/kernel/dma.c
@@ -140,7 +140,7 @@ static int proc_dma_open(struct inode *inode, struct file *file)
return single_open(file, proc_dma_show, NULL);
}
-static struct file_operations proc_dma_operations = {
+static const struct file_operations proc_dma_operations = {
.open = proc_dma_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/futex.c b/kernel/futex.c
index a8302a1..95989a3 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1492,7 +1492,7 @@ static unsigned int futex_poll(struct file *filp,
return ret;
}
-static struct file_operations futex_fops = {
+static const struct file_operations futex_fops = {
.release = futex_close,
.poll = futex_poll,
};
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 54befe3..ab63cfc 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -398,7 +398,7 @@ static int s_show(struct seq_file *m, void *p)
return 0;
}
-static struct seq_operations kallsyms_op = {
+static const struct seq_operations kallsyms_op = {
.start = s_start,
.next = s_next,
.stop = s_stop,
@@ -433,7 +433,7 @@ static int kallsyms_release(struct inode *inode, struct file *file)
return seq_release(inode, file);
}
-static struct file_operations kallsyms_operations = {
+static const struct file_operations kallsyms_operations = {
.open = kallsyms_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index f6e72ea..b554b40 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -113,7 +113,7 @@ static int l_show(struct seq_file *m, void *v)
return 0;
}
-static struct seq_operations lockdep_ops = {
+static const struct seq_operations lockdep_ops = {
.start = l_start,
.next = l_next,
.stop = l_stop,
@@ -135,7 +135,7 @@ static int lockdep_open(struct inode *inode, struct file *file)
return res;
}
-static struct file_operations proc_lockdep_operations = {
+static const struct file_operations proc_lockdep_operations = {
.open = lockdep_open,
.read = seq_read,
.llseek = seq_lseek,
@@ -319,7 +319,7 @@ static int lockdep_stats_open(struct inode *inode, struct file *file)
return single_open(file, lockdep_stats_show, NULL);
}
-static struct file_operations proc_lockdep_stats_operations = {
+static const struct file_operations proc_lockdep_stats_operations = {
.open = lockdep_stats_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/module.c b/kernel/module.c
index e2d09d6..d9eae45 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2209,7 +2209,7 @@ static int m_show(struct seq_file *m, void *p)
Where refcount is a number or -, and deps is a comma-separated list
of depends or -.
*/
-struct seq_operations modules_op = {
+const struct seq_operations modules_op = {
.start = m_start,
.next = m_next,
.stop = m_stop,
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 069732e..89443b8 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -383,7 +383,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
return error;
}
-static struct file_operations snapshot_fops = {
+static const struct file_operations snapshot_fops = {
.open = snapshot_open,
.release = snapshot_release,
.read = snapshot_read,
diff --git a/kernel/profile.c b/kernel/profile.c
index 0961d93..fb5e03d 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -501,7 +501,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
return count;
}
-static struct file_operations proc_profile_operations = {
+static const struct file_operations proc_profile_operations = {
.read = read_profile,
.write = write_profile,
};
diff --git a/kernel/relay.c b/kernel/relay.c
index 2b92e8e..75a3a9a 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1013,7 +1013,7 @@ static ssize_t relay_file_sendfile(struct file *filp,
actor, &desc);
}
-struct file_operations relay_file_operations = {
+const struct file_operations relay_file_operations = {
.open = relay_file_open,
.poll = relay_file_poll,
.mmap = relay_file_mmap,
diff --git a/kernel/resource.c b/kernel/resource.c
index 6de60c1..7b9a497 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -88,7 +88,7 @@ static int r_show(struct seq_file *m, void *v)
return 0;
}
-static struct seq_operations resource_op = {
+static const struct seq_operations resource_op = {
.start = r_start,
.next = r_next,
.stop = r_stop,
@@ -115,14 +115,14 @@ static int iomem_open(struct inode *inode, struct file *file)
return res;
}
-static struct file_operations proc_ioports_operations = {
+static const struct file_operations proc_ioports_operations = {
.open = ioports_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
-static struct file_operations proc_iomem_operations = {
+static const struct file_operations proc_iomem_operations = {
.open = iomem_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/sched.c b/kernel/sched.c
index b43cef0..f385eff 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -505,7 +505,7 @@ static int schedstat_open(struct inode *inode, struct file *file)
return res;
}
-struct file_operations proc_schedstat_operations = {
+const struct file_operations proc_schedstat_operations = {
.open = schedstat_open,
.read = seq_read,
.llseek = seq_lseek,
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 6d7147c..758dbbf 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -170,7 +170,7 @@ static ssize_t proc_readsys(struct file *, char __user *, size_t, loff_t *);
static ssize_t proc_writesys(struct file *, const char __user *, size_t, loff_t *);
static int proc_opensys(struct inode *, struct file *);
-struct file_operations proc_sys_file_operations = {
+const struct file_operations proc_sys_file_operations = {
.open = proc_opensys,
.read = proc_readsys,
.write = proc_writesys,
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index ad864f8..b917d6f 100644
--- a/mm/mempolicy.c
+++ b/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.
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 27ec7a1..cace22b 100644
--- a/mm/page_alloc.c
+++ b/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",
diff --git a/mm/shmem.c b/mm/shmem.c
index 0076536..c820b4f 100644
--- a/mm/shmem.c
+++ b/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,
diff --git a/mm/slab.c b/mm/slab.c
index 86f5d6e..068cb45 100644
--- a/mm/slab.c
+++ b/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,
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 5524236..c543107 100644
--- a/mm/swapfile.c
+++ b/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,
diff --git a/mm/vmstat.c b/mm/vmstat.c
index ef41768..dc005a0 100644
--- a/mm/vmstat.c
+++ b/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,
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