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| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-16 19:21:14 +0300 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2022-12-02 13:24:59 +0300 |
| commit | d9a4af5690e26afa8a2eb83c575d3a9ef52cde1d (patch) | |
| tree | 42dfbe9bc1d553682eb6c83b8a6e9cf93081fa41 /include/linux/console.h | |
| parent | 9e409c4778afbbd44759e56ec4bbed839fd31909 (diff) | |
| download | linux-d9a4af5690e26afa8a2eb83c575d3a9ef52cde1d.tar.xz | |
printk: Convert console_drivers list to hlist
Replace the open coded single linked list with a hlist so a conversion
to SRCU protected list walks can reuse the existing primitives.
Co-developed-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20221116162152.193147-3-john.ogness@linutronix.de
Diffstat (limited to 'include/linux/console.h')
| -rw-r--r-- | include/linux/console.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/console.h b/include/linux/console.h index 8c1686e2c233..7b5f21f9e469 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -15,6 +15,7 @@ #define _LINUX_CONSOLE_H_ 1 #include <linux/atomic.h> +#include <linux/list.h> #include <linux/types.h> struct vc_data; @@ -154,14 +155,16 @@ struct console { u64 seq; unsigned long dropped; void *data; - struct console *next; + struct hlist_node node; }; +extern struct hlist_head console_list; + /* * for_each_console() allows you to iterate on each console */ #define for_each_console(con) \ - for (con = console_drivers; con != NULL; con = con->next) + hlist_for_each_entry(con, &console_list, node) extern int console_set_on_cmdline; extern struct console *early_console; @@ -174,7 +177,6 @@ enum con_flush_mode { extern int add_preferred_console(char *name, int idx, char *options); extern void register_console(struct console *); extern int unregister_console(struct console *); -extern struct console *console_drivers; extern void console_lock(void); extern int console_trylock(void); extern void console_unlock(void); |