Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=621e4f...
Commit: 621e4f8e9b208245d1f64eac7e6782b7aa506c21
Parent: 388bbb09b991c792310af2f6b49f6c55edb3dff0
Author: Richard Purdie <rpurdie@rpsys.net>
AuthorDate: Wed Feb 6 10:17:50 2008 +0000
Committer: David Woodhouse <dwmw2@infradead.org>
CommitDate: Thu Feb 7 10:31:04 2008 +0000
[MTD] mtdoops: Use the panic_write function when present
When the MTD provides a panic_write function, use it.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---
drivers/mtd/mtdoops.c | 26 +++++++++++++++++++++-----
1 files changed, 21 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 34681bc..fd98e38 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -28,6 +28,7 @@
#include <linux/workqueue.h>
#include <linux/sched.h>
#include <linux/wait.h>
+#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/mtd/mtd.h>
@@ -183,10 +184,8 @@ badblock:
goto badblock;
}
-static void mtdoops_workfunc_write(struct work_struct *work)
+static void mtdoops_write(struct mtdoops_context *cxt, int panic)
{
- struct mtdoops_context *cxt =
- container_of(work, struct mtdoops_context, work_write);
struct mtd_info *mtd = cxt->mtd;
size_t retlen;
int ret;
@@ -195,7 +194,11 @@ static void mtdoops_workfunc_write(struct work_struct *work)
memset(cxt->oops_buf + cxt->writecount, 0xff,
OOPS_PAGE_SIZE - cxt->writecount);
- ret = mtd->write(mtd, cxt->nextpage * OOPS_PAGE_SIZE,
+ if (panic)
+ ret = mtd->panic_write(mtd, cxt->nextpage * OOPS_PAGE_SIZE,
+ OOPS_PAGE_SIZE, &retlen, cxt->oops_buf);
+ else
+ ret = mtd->write(mtd, cxt->nextpage * OOPS_PAGE_SIZE,
OOPS_PAGE_SIZE, &retlen, cxt->oops_buf);
cxt->writecount = 0;
@@ -205,6 +208,15 @@ static void mtdoops_workfunc_write(struct work_struct *work)
cxt->nextpage * OOPS_PAGE_SIZE, retlen, OOPS_PAGE_SIZE, ret);
mtdoops_inc_counter(cxt);
+}
+
+
+static void mtdoops_workfunc_write(struct work_struct *work)
+{
+ struct mtdoops_context *cxt =
+ container_of(work, struct mtdoops_context, work_write);
+
+ mtdoops_write(cxt, 0);
}
static void find_next_position(struct mtdoops_context *cxt)
@@ -314,7 +326,11 @@ static void mtdoops_console_sync(void)
cxt->ready = 0;
spin_unlock_irqrestore(&cxt->writecount_lock, flags);
- schedule_work(&cxt->work_write);
+ if (mtd->panic_write && in_interrupt())
+ /* Interrupt context, we're going to panic so try and log */
+ mtdoops_write(cxt, 1);
+ else
+ schedule_work(&cxt->work_write);
}
static void
-
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