diff options
| author | Seungwon Jeon <tgih.jun@samsung.com> | 2013-03-14 07:17:13 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-03-22 18:29:36 +0100 |
| commit | ef3a69c7a40d5350adeaed7f0f4b4dcf6362dbbd (patch) | |
| tree | cb77517ba212670cb6234624848c4b3afc69eda6 /drivers/mmc/card/queue.h | |
| parent | mmc: core: wait while adding MMC host to ensure root mounts successfully (diff) | |
| download | linux-ef3a69c7a40d5350adeaed7f0f4b4dcf6362dbbd.tar.xz linux-ef3a69c7a40d5350adeaed7f0f4b4dcf6362dbbd.zip | |
mmc: block: fix the host's claim-release in special request
For normal request mmc_blk_issue_rq is called twice with asynchronous
transfer(cur and prev). Host's claim and release can be done in each
mmc_blk_issue_rq. However, Special request is currently excluded in
asynchronous transfer. After special request is finished, if there is
no new request, mmc_release_host won't be called in mmc_blk_issue_rq.
The problem is founded during mmc_suspend.
[<c0541124>] (__schedule+0x0/0x78c) from [<c05419e8>] (schedule+0x38/0x78)
[<c05419b0>] (schedule+0x0/0x78) from [<c03a843c>] (__mmc_claim_host+0xac/0x1b4)
[<c03a8390>] (__mmc_claim_host+0x0/0x1b4) from [<c03ac98c>] (mmc_suspend+0x28/0x9c)
[<c03ac964>] (mmc_suspend+0x0/0x9c) from [<c03aad24>] (mmc_suspend_host+0xb4/0x194)
...
Reported-by: Johan Rudholm <jrudholm@gmail.com>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Johan Rudholm <johan.rudholm@stericsson.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/card/queue.h')
| -rw-r--r-- | drivers/mmc/card/queue.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h index 031bf6376c99..5752d50049a3 100644 --- a/drivers/mmc/card/queue.h +++ b/drivers/mmc/card/queue.h @@ -1,6 +1,8 @@ #ifndef MMC_QUEUE_H #define MMC_QUEUE_H +#define MMC_REQ_SPECIAL_MASK (REQ_DISCARD | REQ_FLUSH) + struct request; struct task_struct; |