From 79c0108d1b9db4864ab77b2a95dfa04f2dcf264c Mon Sep 17 00:00:00 2001 From: Linas Vepstas Date: Thu, 9 Aug 2007 06:06:15 +1000 Subject: [PATCH] [POWERPC] pseries: Fix jumbled no_logging flag Get rid of the jumbled usage of the no_logging flag. Its use spans several directories, and is incorrectly/misleadingly documented. Instead, two changes: 1) nvram will accept error log as soon as its ready. 2) logging to nvram stops on the first fatal error reported. Signed-off-by: Linas Vepstas ---- arch/powerpc/kernel/nvram_64.c | 8 -------- arch/powerpc/platforms/pseries/rtasd.c | 14 ++++++-------- 2 files changed, 6 insertions(+), 16 deletions(-) Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/nvram_64.c | 8 -------- arch/powerpc/platforms/pseries/rtasd.c | 14 ++++++-------- 2 files changed, 6 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index ba979908d17d..4a4d785a08d3 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -38,10 +38,6 @@ static struct nvram_partition * nvram_part; static long nvram_error_log_index = -1; static long nvram_error_log_size = 0; -int no_logging = 1; /* Until we initialize everything, - * make sure we don't try logging - * anything */ - extern volatile int error_log_cnt; struct err_log_info { @@ -637,10 +633,6 @@ int nvram_write_error_log(char * buff, int length, unsigned int err_type) loff_t tmp_index; struct err_log_info info; - if (no_logging) { - return -EPERM; - } - if (nvram_error_log_index == -1) { return -ESPIPE; } diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index d902097646b7..b802a272bd29 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -53,7 +53,8 @@ static unsigned int rtas_event_scan_rate; static int full_rtas_msgs = 0; -extern int no_logging; +/* Stop logging to nvram after first fatal error */ +static int no_more_logging; volatile int error_log_cnt = 0; @@ -216,7 +217,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal) } /* Write error to NVRAM */ - if (!no_logging && !(err_type & ERR_FLAG_BOOT)) + if (!no_more_logging && !(err_type & ERR_FLAG_BOOT)) nvram_write_error_log(buf, len, err_type); /* @@ -228,8 +229,8 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal) printk_log_rtas(buf, len); /* Check to see if we need to or have stopped logging */ - if (fatal || no_logging) { - no_logging = 1; + if (fatal || no_more_logging) { + no_more_logging = 1; spin_unlock_irqrestore(&rtasd_log_lock, s); return; } @@ -301,7 +302,7 @@ static ssize_t rtas_log_read(struct file * file, char __user * buf, spin_lock_irqsave(&rtasd_log_lock, s); /* if it's 0, then we know we got the last one (the one in NVRAM) */ - if (rtas_log_size == 0 && !no_logging) + if (rtas_log_size == 0 && !no_more_logging) nvram_clear_error_log(); spin_unlock_irqrestore(&rtasd_log_lock, s); @@ -413,9 +414,6 @@ static int rtasd(void *unused) memset(logdata, 0, rtas_error_log_max); rc = nvram_read_error_log(logdata, rtas_error_log_max, &err_type); - /* We can use rtas_log_buf now */ - no_logging = 0; - if (!rc) { if (err_type != ERR_FLAG_ALREADY_LOGGED) { pSeries_log_error(logdata, err_type | ERR_FLAG_BOOT, 0); -- 2.11.0