Commit 621e4f8e authored by Richard Purdie's avatar Richard Purdie Committed by David Woodhouse

[MTD] mtdoops: Use the panic_write function when present

When the MTD provides a panic_write function, use it.
Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
parent 388bbb09
......@@ -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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