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authorArjan van de Ven <arjan@linux.intel.com>2007-02-12 03:55:32 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:45 -0500
commit2b8693c0617e972fc0b2fd1ebf8de97e15b656c3 (patch)
tree3eb7dfbc8d5e4031e4992bdd566e211f5ada71f3 /drivers/ieee1394
parent5dfe4c964a0dd7bb3a1d64a4166835a153146207 (diff)
[PATCH] mark struct file_operations const 3
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>
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r--drivers/ieee1394/dv1394.c2
-rw-r--r--drivers/ieee1394/raw1394.c2
-rw-r--r--drivers/ieee1394/video1394.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 55d6ae664fd6..dee9529aa8e7 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -2147,7 +2147,7 @@ out:
2147} 2147}
2148 2148
2149static struct cdev dv1394_cdev; 2149static struct cdev dv1394_cdev;
2150static struct file_operations dv1394_fops= 2150static const struct file_operations dv1394_fops=
2151{ 2151{
2152 .owner = THIS_MODULE, 2152 .owner = THIS_MODULE,
2153 .poll = dv1394_poll, 2153 .poll = dv1394_poll,
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index a77a832828c8..aa9ca8385ec7 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -3013,7 +3013,7 @@ static struct hpsb_highlevel raw1394_highlevel = {
3013}; 3013};
3014 3014
3015static struct cdev raw1394_cdev; 3015static struct cdev raw1394_cdev;
3016static struct file_operations raw1394_fops = { 3016static const struct file_operations raw1394_fops = {
3017 .owner = THIS_MODULE, 3017 .owner = THIS_MODULE,
3018 .read = raw1394_read, 3018 .read = raw1394_read,
3019 .write = raw1394_write, 3019 .write = raw1394_write,
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index f4d1ec00af65..95ca26d75272 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1277,7 +1277,7 @@ static long video1394_compat_ioctl(struct file *f, unsigned cmd, unsigned long a
1277#endif 1277#endif
1278 1278
1279static struct cdev video1394_cdev; 1279static struct cdev video1394_cdev;
1280static struct file_operations video1394_fops= 1280static const struct file_operations video1394_fops=
1281{ 1281{
1282 .owner = THIS_MODULE, 1282 .owner = THIS_MODULE,
1283 .unlocked_ioctl = video1394_ioctl, 1283 .unlocked_ioctl = video1394_ioctl,