[PATCH] mark struct file_operations const 4
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@sdl.org: dvb 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>
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Linus Torvalds

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2b8693c061
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@@ -152,7 +152,7 @@ static int pwc_video_ioctl(struct inode *inode, struct file *file,
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unsigned int ioctlnr, unsigned long arg);
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static int pwc_video_mmap(struct file *file, struct vm_area_struct *vma);
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static struct file_operations pwc_fops = {
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static const struct file_operations pwc_fops = {
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.owner = THIS_MODULE,
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.open = pwc_video_open,
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.release = pwc_video_close,
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