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

[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

drivers/mtd/mtdoops.c

+21 −5
Original line number Original line Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <linux/workqueue.h>

#include <linux/workqueue.h>

#include <linux/sched.h>

#include <linux/sched.h>

#include <linux/wait.h>

#include <linux/wait.h>

#include <linux/delay.h>

#include <linux/spinlock.h>

#include <linux/spinlock.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/mtd.h>
@@ -183,10 +184,8 @@ badblock: 
	goto 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;

	struct mtd_info *mtd = cxt->mtd;

	size_t retlen;

	size_t retlen;

	int ret;

	int ret;
@@ -195,6 +194,10 @@ static void mtdoops_workfunc_write(struct work_struct *work) 
		memset(cxt->oops_buf + cxt->writecount, 0xff,

		memset(cxt->oops_buf + cxt->writecount, 0xff,

					OOPS_PAGE_SIZE - cxt->writecount);

					OOPS_PAGE_SIZE - cxt->writecount);





	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,

		ret = mtd->write(mtd, cxt->nextpage * OOPS_PAGE_SIZE,

					OOPS_PAGE_SIZE, &retlen, cxt->oops_buf);

					OOPS_PAGE_SIZE, &retlen, cxt->oops_buf);
@@ -207,6 +210,15 @@ static void mtdoops_workfunc_write(struct work_struct *work) 
	mtdoops_inc_counter(cxt);

	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)

static void find_next_position(struct mtdoops_context *cxt)

{

{

	struct mtd_info *mtd = cxt->mtd;

	struct mtd_info *mtd = cxt->mtd;
@@ -314,6 +326,10 @@ static void mtdoops_console_sync(void) 
	cxt->ready = 0;

	cxt->ready = 0;

	spin_unlock_irqrestore(&cxt->writecount_lock, flags);

	spin_unlock_irqrestore(&cxt->writecount_lock, flags);





	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);

		schedule_work(&cxt->work_write);

}

}