[PATCH] mark struct file_operations const 7
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>
此提交包含在:
@@ -1938,7 +1938,7 @@ static int ax25_info_open(struct inode *inode, struct file *file)
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return seq_open(file, &ax25_info_seqops);
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}
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static struct file_operations ax25_info_fops = {
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static const struct file_operations ax25_info_fops = {
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.owner = THIS_MODULE,
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.open = ax25_info_open,
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.read = seq_read,
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@@ -332,7 +332,7 @@ static int ax25_rt_info_open(struct inode *inode, struct file *file)
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return seq_open(file, &ax25_rt_seqops);
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}
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struct file_operations ax25_route_fops = {
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const struct file_operations ax25_route_fops = {
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.owner = THIS_MODULE,
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.open = ax25_rt_info_open,
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.read = seq_read,
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@@ -198,7 +198,7 @@ static int ax25_uid_info_open(struct inode *inode, struct file *file)
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return seq_open(file, &ax25_uid_seqops);
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}
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struct file_operations ax25_uid_fops = {
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const struct file_operations ax25_uid_fops = {
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.owner = THIS_MODULE,
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.open = ax25_uid_info_open,
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.read = seq_read,
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