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| author |   Richard Purdie <rpurdie@rpsys.net> | 2008-02-06 10:17:50 +0000 |
|---|---|---|
| committer |   David Woodhouse <dwmw2@infradead.org> | 2008-02-07 10:31:04 +0000 |
| commit | 621e4f8e9b208245d1f64eac7e6782b7aa506c21 (patch) | |
| tree | 9f321b2cb0126cf2c5edb5a0694b0576313e57a2 /drivers/mtd/mtdoops.c | |
| parent | [MTD] Add mtd panic_write function pointer (diff) | |
| download | linux-dev-621e4f8e9b208245d1f64eac7e6782b7aa506c21.tar.xz linux-dev-621e4f8e9b208245d1f64eac7e6782b7aa506c21.zip | |
[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>
Diffstat (limited to 'drivers/mtd/mtdoops.c')
| -rw-r--r-- | 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 34681bc91105..fd98e38f10bc 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 |