[PATCH] mark struct file_operations const 5

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.

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>

45 files changed, 89 insertions, 89 deletions

diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index e33d446e7493..8ba275a12773 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -1111,7 +1111,7 @@ static int cfg_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static struct file_operations config_fops = {
+static const struct file_operations config_fops = {
 	.owner = THIS_MODULE,
 	.llseek = no_llseek,
 	.ioctl = i2o_cfg_ioctl,
diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
index a61cb17c5c12..06892ac2286e 100644
--- a/drivers/message/i2o/i2o_proc.c
+++ b/drivers/message/i2o/i2o_proc.c
@@ -1703,133 +1703,133 @@ static int i2o_seq_open_dev_name(struct inode *inode, struct file *file)
 	return single_open(file, i2o_seq_show_dev_name, PDE(inode)->data);
 };
 
-static struct file_operations i2o_seq_fops_lct = {
+static const struct file_operations i2o_seq_fops_lct = {
 	.open = i2o_seq_open_lct,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_hrt = {
+static const struct file_operations i2o_seq_fops_hrt = {
 	.open = i2o_seq_open_hrt,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_status = {
+static const struct file_operations i2o_seq_fops_status = {
 	.open = i2o_seq_open_status,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_hw = {
+static const struct file_operations i2o_seq_fops_hw = {
 	.open = i2o_seq_open_hw,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_ddm_table = {
+static const struct file_operations i2o_seq_fops_ddm_table = {
 	.open = i2o_seq_open_ddm_table,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_driver_store = {
+static const struct file_operations i2o_seq_fops_driver_store = {
 	.open = i2o_seq_open_driver_store,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_drivers_stored = {
+static const struct file_operations i2o_seq_fops_drivers_stored = {
 	.open = i2o_seq_open_drivers_stored,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_groups = {
+static const struct file_operations i2o_seq_fops_groups = {
 	.open = i2o_seq_open_groups,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_phys_device = {
+static const struct file_operations i2o_seq_fops_phys_device = {
 	.open = i2o_seq_open_phys_device,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_claimed = {
+static const struct file_operations i2o_seq_fops_claimed = {
 	.open = i2o_seq_open_claimed,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_users = {
+static const struct file_operations i2o_seq_fops_users = {
 	.open = i2o_seq_open_users,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_priv_msgs = {
+static const struct file_operations i2o_seq_fops_priv_msgs = {
 	.open = i2o_seq_open_priv_msgs,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_authorized_users = {
+static const struct file_operations i2o_seq_fops_authorized_users = {
 	.open = i2o_seq_open_authorized_users,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_dev_name = {
+static const struct file_operations i2o_seq_fops_dev_name = {
 	.open = i2o_seq_open_dev_name,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_dev_identity = {
+static const struct file_operations i2o_seq_fops_dev_identity = {
 	.open = i2o_seq_open_dev_identity,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_ddm_identity = {
+static const struct file_operations i2o_seq_fops_ddm_identity = {
 	.open = i2o_seq_open_ddm_identity,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_uinfo = {
+static const struct file_operations i2o_seq_fops_uinfo = {
 	.open = i2o_seq_open_uinfo,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_sgl_limits = {
+static const struct file_operations i2o_seq_fops_sgl_limits = {
 	.open = i2o_seq_open_sgl_limits,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };
 
-static struct file_operations i2o_seq_fops_sensors = {
+static const struct file_operations i2o_seq_fops_sensors = {
 	.open = i2o_seq_open_sensors,
 	.read = seq_read,
 	.llseek = seq_lseek,
diff --git a/drivers/misc/hdpuftrs/hdpu_cpustate.c b/drivers/misc/hdpuftrs/hdpu_cpustate.c
index 11a801be71c8..ca86f113f36a 100644
--- a/drivers/misc/hdpuftrs/hdpu_cpustate.c
+++ b/drivers/misc/hdpuftrs/hdpu_cpustate.c
@@ -169,7 +169,7 @@ static struct platform_driver hdpu_cpustate_driver = {
 /*
  *	The various file operations we support.
  */
-static struct file_operations cpustate_fops = {
+static const struct file_operations cpustate_fops = {
       owner:THIS_MODULE,
       open:cpustate_open,
       release:cpustate_release,
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index b99dc507de2e..c436d3de8b8b 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -156,7 +156,7 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode)
 static struct dentry *ibmasmfs_create_file (struct super_block *sb,
 			struct dentry *parent,
 		       	const char *name,
-			struct file_operations *fops,
+			const struct file_operations *fops,
 			void *data,
 			int mode)
 {
@@ -581,28 +581,28 @@ static ssize_t remote_settings_file_write(struct file *file, const char __user *
 	return count;
 }
 
-static struct file_operations command_fops = {
+static const struct file_operations command_fops = {
 	.open =		command_file_open,
 	.release =	command_file_close,
 	.read =		command_file_read,
 	.write =	command_file_write,
 };
 
-static struct file_operations event_fops = {
+static const struct file_operations event_fops = {
 	.open =		event_file_open,
 	.release =	event_file_close,
 	.read =		event_file_read,
 	.write =	event_file_write,
 };
 
-static struct file_operations r_heartbeat_fops = {
+static const struct file_operations r_heartbeat_fops = {
 	.open =		r_heartbeat_file_open,
 	.release =	r_heartbeat_file_close,
 	.read =		r_heartbeat_file_read,
 	.write =	r_heartbeat_file_write,
 };
 
-static struct file_operations remote_settings_fops = {
+static const struct file_operations remote_settings_fops = {
 	.open =		remote_settings_file_open,
 	.release =	remote_settings_file_close,
 	.read =		remote_settings_file_read,
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 3013d0883b97..61a994ea8af1 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -759,7 +759,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
 	return ret;
 } /* memory_ioctl */
 
-static struct file_operations mtd_fops = {
+static const struct file_operations mtd_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= mtd_lseek,
 	.read		= mtd_read,
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 8ce8fec615ba..61a6fa465d71 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3120,7 +3120,7 @@ static int bond_info_open(struct inode *inode, struct file *file)
 	return res;
 }
 
-static struct file_operations bond_info_fops = {
+static const struct file_operations bond_info_fops = {
 	.owner   = THIS_MODULE,
 	.open    = bond_info_open,
 	.read    = seq_read,
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 5b788d84011f..d2542697e298 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -459,7 +459,7 @@ static int bpq_info_open(struct inode *inode, struct file *file)
 	return seq_open(file, &bpq_seqops);
 }
 
-static struct file_operations bpq_info_fops = {
+static const struct file_operations bpq_info_fops = {
 	.owner = THIS_MODULE,
 	.open = bpq_info_open,
 	.read = seq_read,
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index 2ce047e9d262..6fdaad5a4577 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -2083,7 +2083,7 @@ static int scc_net_seq_open(struct inode *inode, struct file *file)
 	return seq_open(file, &scc_net_seq_ops);
 }
 
-static struct file_operations scc_net_seq_fops = {
+static const struct file_operations scc_net_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = scc_net_seq_open,
 	.read	 = seq_read,
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 6d74f08720d5..08f27119a807 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -804,7 +804,7 @@ static int yam_info_open(struct inode *inode, struct file *file)
 	return seq_open(file, &yam_seqops);
 }
 
-static struct file_operations yam_info_fops = {
+static const struct file_operations yam_info_fops = {
 	.owner = THIS_MODULE,
 	.open = yam_info_open,
 	.read = seq_read,
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 99343b5836b8..458db0538a9a 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -1156,7 +1156,7 @@ static int ibmveth_proc_open(struct inode *inode, struct file *file)
 	return rc;
 }
 
-static struct file_operations ibmveth_proc_fops = {
+static const struct file_operations ibmveth_proc_fops = {
 	.owner	 = THIS_MODULE,
 	.open    = ibmveth_proc_open,
 	.read    = seq_read,
diff --git a/drivers/net/irda/vlsi_ir.c b/drivers/net/irda/vlsi_ir.c
index e2b1af618450..3457e9d8b667 100644
--- a/drivers/net/irda/vlsi_ir.c
+++ b/drivers/net/irda/vlsi_ir.c
@@ -385,7 +385,7 @@ static int vlsi_seq_open(struct inode *inode, struct file *file)
 	return single_open(file, vlsi_seq_show, PDE(inode)->data);
 }
 
-static struct file_operations vlsi_proc_fops = {
+static const struct file_operations vlsi_proc_fops = {
 	.owner	 = THIS_MODULE,
 	.open    = vlsi_seq_open,
 	.read    = seq_read,
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 0986f6c843e6..11b575f89856 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -834,7 +834,7 @@ static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
 	return err;
 }
 
-static struct file_operations ppp_device_fops = {
+static const struct file_operations ppp_device_fops = {
 	.owner		= THIS_MODULE,
 	.read		= ppp_read,
 	.write		= ppp_write,
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 315d5c3fc66a..860bb0f60f68 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -1043,7 +1043,7 @@ static int pppoe_seq_open(struct inode *inode, struct file *file)
 	return seq_open(file, &pppoe_seq_ops);
 }
 
-static struct file_operations pppoe_seq_fops = {
+static const struct file_operations pppoe_seq_fops = {
 	.owner		= THIS_MODULE,
 	.open		= pppoe_seq_open,
 	.read		= seq_read,
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 151a2e10e4f3..5643d1e84ed6 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -744,7 +744,7 @@ static int tun_chr_close(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static struct file_operations tun_fops = {
+static const struct file_operations tun_fops = {
 	.owner	= THIS_MODULE,
 	.llseek = no_llseek,
 	.read  = do_sync_read,
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 6c7dfb50143f..e91b5a84a20a 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -311,7 +311,7 @@ static int cosa_chardev_ioctl(struct inode *inode, struct file *file,
 static int cosa_fasync(struct inode *inode, struct file *file, int on);
 #endif
 
-static struct file_operations cosa_fops = {
+static const struct file_operations cosa_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.read		= cosa_read,
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 44a22701da97..b08055abe83a 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -4430,53 +4430,53 @@ static int proc_BSSList_open( struct inode *inode, struct file *file );
 static int proc_config_open( struct inode *inode, struct file *file );
 static int proc_wepkey_open( struct inode *inode, struct file *file );
 
-static struct file_operations proc_statsdelta_ops = {
+static const struct file_operations proc_statsdelta_ops = {
 	.read		= proc_read,
 	.open		= proc_statsdelta_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_stats_ops = {
+static const struct file_operations proc_stats_ops = {
 	.read		= proc_read,
 	.open		= proc_stats_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_status_ops = {
+static const struct file_operations proc_status_ops = {
 	.read		= proc_read,
 	.open		= proc_status_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_SSID_ops = {
+static const struct file_operations proc_SSID_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_SSID_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_BSSList_ops = {
+static const struct file_operations proc_BSSList_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_BSSList_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_APList_ops = {
+static const struct file_operations proc_APList_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_APList_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_config_ops = {
+static const struct file_operations proc_config_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_config_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_wepkey_ops = {
+static const struct file_operations proc_wepkey_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_wepkey_open,
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
index b9df06a06ea9..35dbe4554513 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
@@ -355,37 +355,37 @@ out_up:
 #undef fappend
 
 
-static struct file_operations devinfo_fops = {
+static const struct file_operations devinfo_fops = {
 	.read = devinfo_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations spromdump_fops = {
+static const struct file_operations spromdump_fops = {
 	.read = spromdump_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations drvinfo_fops = {
+static const struct file_operations drvinfo_fops = {
 	.read = drvinfo_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations tsf_fops = {
+static const struct file_operations tsf_fops = {
 	.read = tsf_read_file,
 	.write = tsf_write_file,
 	.open = open_file_generic,
 };
 
-static struct file_operations txstat_fops = {
+static const struct file_operations txstat_fops = {
 	.read = txstat_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations restart_fops = {
+static const struct file_operations restart_fops = {
 	.write = restart_write_file,
 	.open = open_file_generic,
 };
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index ce3a8bac66ff..f5ce1c6063d8 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1160,7 +1160,7 @@ static int strip_seq_open(struct inode *inode, struct file *file)
 	return seq_open(file, &strip_seq_ops);
 }
 
-static struct file_operations strip_seq_fops = {
+static const struct file_operations strip_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open    = strip_seq_open,
 	.read    = seq_read,
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index 04d641714d34..00e937e9240e 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -181,7 +181,7 @@ out:
 	return retval;
 }
  
-struct file_operations event_buffer_fops = {
+const struct file_operations event_buffer_fops = {
 	.open		= event_buffer_open,
 	.release	= event_buffer_release,
 	.read		= event_buffer_read,
diff --git a/drivers/oprofile/event_buffer.h b/drivers/oprofile/event_buffer.h
index 92416276e577..9b6a4ebd03e3 100644
--- a/drivers/oprofile/event_buffer.h
+++ b/drivers/oprofile/event_buffer.h
@@ -41,7 +41,7 @@ void wake_up_buffer_waiter(void);
 /* add data to the event buffer */
 void add_event_entry(unsigned long data);
  
-extern struct file_operations event_buffer_fops;
+extern const struct file_operations event_buffer_fops;
  
 /* mutex between sync_cpu_buffers() and the
  * file reading code.
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index a72006c08f2b..ef953ba5ab6b 100644
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -44,7 +44,7 @@ static ssize_t depth_write(struct file * file, char const __user * buf, size_t c
 }
 
 
-static struct file_operations depth_fops = {
+static const struct file_operations depth_fops = {
 	.read		= depth_read,
 	.write		= depth_write
 };
@@ -56,7 +56,7 @@ static ssize_t pointer_size_read(struct file * file, char __user * buf, size_t c
 }
 
 
-static struct file_operations pointer_size_fops = {
+static const struct file_operations pointer_size_fops = {
 	.read		= pointer_size_read,
 };
 
@@ -67,7 +67,7 @@ static ssize_t cpu_type_read(struct file * file, char __user * buf, size_t count
 }
  
  
-static struct file_operations cpu_type_fops = {
+static const struct file_operations cpu_type_fops = {
 	.read		= cpu_type_read,
 };
  
@@ -101,7 +101,7 @@ static ssize_t enable_write(struct file * file, char const __user * buf, size_t
 }
 
  
-static struct file_operations enable_fops = {
+static const struct file_operations enable_fops = {
 	.read		= enable_read,
 	.write		= enable_write,
 };
@@ -114,7 +114,7 @@ static ssize_t dump_write(struct file * file, char const __user * buf, size_t co
 }
 
 
-static struct file_operations dump_fops = {
+static const struct file_operations dump_fops = {
 	.write		= dump_write,
 };
  
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 5756401fb15b..6e67b42ca46d 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -115,14 +115,14 @@ static int default_open(struct inode * inode, struct file * filp)
 }
 
 
-static struct file_operations ulong_fops = {
+static const struct file_operations ulong_fops = {
 	.read		= ulong_read_file,
 	.write		= ulong_write_file,
 	.open		= default_open,
 };
 
 
-static struct file_operations ulong_ro_fops = {
+static const struct file_operations ulong_ro_fops = {
 	.read		= ulong_read_file,
 	.open		= default_open,
 };
@@ -182,7 +182,7 @@ static ssize_t atomic_read_file(struct file * file, char __user * buf, size_t co
 }
  
 
-static struct file_operations atomic_ro_fops = {
+static const struct file_operations atomic_ro_fops = {
 	.read		= atomic_read_file,
 	.open		= default_open,
 };
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index fe3f5f5365c5..894fdb9d44c0 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/