From 4b6f5d20b04dcbc3d888555522b90ba6d36c4106 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 28 Mar 2006 01:56:42 -0800 Subject: [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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/pipe.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/pipe.c') diff --git a/fs/pipe.c b/fs/pipe.c index 4384c929094..e2f4f1d9ffc 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -568,7 +568,7 @@ pipe_rdwr_open(struct inode *inode, struct file *filp) * The file_operations structs are not static because they * are also used in linux/fs/fifo.c to do operations on FIFOs. */ -struct file_operations read_fifo_fops = { +const struct file_operations read_fifo_fops = { .llseek = no_llseek, .read = pipe_read, .readv = pipe_readv, @@ -580,7 +580,7 @@ struct file_operations read_fifo_fops = { .fasync = pipe_read_fasync, }; -struct file_operations write_fifo_fops = { +const struct file_operations write_fifo_fops = { .llseek = no_llseek, .read = bad_pipe_r, .write = pipe_write, @@ -592,7 +592,7 @@ struct file_operations write_fifo_fops = { .fasync = pipe_write_fasync, }; -struct file_operations rdwr_fifo_fops = { +const struct file_operations rdwr_fifo_fops = { .llseek = no_llseek, .read = pipe_read, .readv = pipe_readv, -- cgit v1.2.3-70-g09d2