[PATCH] Make most file operations structs in fs/ const
This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds
parent
99ac48f54a
commit
4b6f5d20b0
@@ -39,7 +39,7 @@ static int default_open(struct inode *inode, struct file *file)
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return 0;
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}
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struct file_operations debugfs_file_operations = {
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const struct file_operations debugfs_file_operations = {
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.read = default_read_file,
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.write = default_write_file,
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.open = default_open,
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@@ -213,7 +213,7 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf,
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return count;
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}
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static struct file_operations fops_bool = {
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static const struct file_operations fops_bool = {
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.read = read_file_bool,
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.write = write_file_bool,
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.open = default_open,
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