diff options
| author | Linus Luessing <linus.luessing@web.de> | 2010-02-19 16:18:08 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 16:43:02 -0800 |
| commit | 837b8248f6206a6b08b3d6defe2946282e432679 (patch) | |
| tree | cb17aef52d0578dea091365c26656712abd8b087 /drivers/staging/batman-adv/proc.c | |
| parent | bc0ad071a788625abb23aee4cb3c07d17d501641 (diff) | |
Staging: batman-adv: atomic variable for vis-srv activation
This fixes the bug discovered by Marek Lindner which did not allow
turning on the vis-server before an interface has been added. With this
patch we are using a global atomic variable for activating and
deactiating the vis-server-mode, which can be used before
inserting an interface.
Signed-off-by: Linus Luessing <linus.luessing@web.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/batman-adv/proc.c')
| -rw-r--r-- | drivers/staging/batman-adv/proc.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/staging/batman-adv/proc.c b/drivers/staging/batman-adv/proc.c index 68c36b097a07..0eadc6b48d75 100644 --- a/drivers/staging/batman-adv/proc.c +++ b/drivers/staging/batman-adv/proc.c @@ -338,11 +338,11 @@ static ssize_t proc_vis_srv_write(struct file *file, const char __user * buffer, if ((strcmp(vis_mode_string, "client") == 0) || (strcmp(vis_mode_string, "disabled") == 0)) { printk(KERN_INFO "batman-adv:Setting VIS mode to client (disabling vis server)\n"); - vis_set_mode(VIS_TYPE_CLIENT_UPDATE); + atomic_set(&vis_mode, VIS_TYPE_CLIENT_UPDATE); } else if ((strcmp(vis_mode_string, "server") == 0) || (strcmp(vis_mode_string, "enabled") == 0)) { printk(KERN_INFO "batman-adv:Setting VIS mode to server (enabling vis server)\n"); - vis_set_mode(VIS_TYPE_SERVER_SYNC); + atomic_set(&vis_mode, VIS_TYPE_SERVER_SYNC); } else printk(KERN_ERR "batman-adv:Unknown VIS mode: %s\n", vis_mode_string); @@ -353,12 +353,12 @@ static ssize_t proc_vis_srv_write(struct file *file, const char __user * buffer, static int proc_vis_srv_read(struct seq_file *seq, void *offset) { - int vis_server = is_vis_server(); + int vis_server = atomic_read(&vis_mode); seq_printf(seq, "[%c] client mode (server disabled) \n", - (!vis_server) ? 'x' : ' '); + (vis_server == VIS_TYPE_CLIENT_UPDATE) ? 'x' : ' '); seq_printf(seq, "[%c] server mode (server enabled) \n", - (vis_server) ? 'x' : ' '); + (vis_server == VIS_TYPE_SERVER_SYNC) ? 'x' : ' '); return 0; } @@ -377,9 +377,10 @@ static int proc_vis_data_read(struct seq_file *seq, void *offset) int i; char tmp_addr_str[ETH_STR_LEN]; unsigned long flags; + int vis_server = atomic_read(&vis_mode); rcu_read_lock(); - if (list_empty(&if_list) || (!is_vis_server())) { + if (list_empty(&if_list) || (vis_server == VIS_TYPE_CLIENT_UPDATE)) { rcu_read_unlock(); goto end; } @@ -672,5 +673,3 @@ int setup_procfs(void) return 0; } - - |