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authorIgor Konopko <igor.j.konopko@intel.com>2019-05-04 20:38:04 +0200
committerJens Axboe <axboe@kernel.dk>2019-05-06 10:19:18 -0600
commit32ac0fa3afebb8b83e3f9189af1a481c0110fe51 (patch)
tree2bdb691d452b29ecead33b7f561a78ed9a682e1a /drivers/lightnvm
parent1fc3b30569bc1087dc8c8b8eff27ca7727b807c4 (diff)
downloadlinux-32ac0fa3afebb8b83e3f9189af1a481c0110fe51.tar.bz2
lightnvm: pblk: remove internal IO timeout
Currently during pblk padding, there is internal IO timeout introduced, which is smaller than default NVMe timeout. This can lead to various use-after-free issues. Since in case of any IO timeouts NVMe and block layer will handle timeout by themselves and report it back to use, there is no need to keep this internal timeout in pblk. Signed-off-by: Igor Konopko <igor.j.konopko@intel.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/pblk-recovery.c7
-rw-r--r--drivers/lightnvm/pblk.h2
2 files changed, 1 insertions, 8 deletions
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index 137e963cd51d..865fe310cab4 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -290,12 +290,7 @@ next_pad_rq:
fail_complete:
kref_put(&pad_rq->ref, pblk_recov_complete);
-
- if (!wait_for_completion_io_timeout(&pad_rq->wait,
- msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
- pblk_err(pblk, "pad write timed out\n");
- ret = -ETIME;
- }
+ wait_for_completion(&pad_rq->wait);
if (!pblk_line_is_full(line))
pblk_err(pblk, "corrupted padded line: %d\n", line->id);
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 381f0746a9cf..90c703d3f84c 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -43,8 +43,6 @@
#define PBLK_CACHE_NAME_LEN (DISK_NAME_LEN + 16)
-#define PBLK_COMMAND_TIMEOUT_MS 30000
-
/* Max 512 LUNs per device */
#define PBLK_MAX_LUNS_BITMAP (4)