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| author | Sagi Grimberg <sagi@grimberg.me> | 2018-07-11 12:43:16 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-07-24 15:55:50 +0200 |
| commit | 1b72b71faccee986e2128a271125177dfe91f7b7 (patch) | |
| tree | 695d1f5db22e84715b438d789e9d6dd4eb824c5a | |
| parent | 75862c72323e222656792370e2f240bc4029ff96 (diff) | |
| download | linux-stable-1b72b71faccee986e2128a271125177dfe91f7b7.tar.gz linux-stable-1b72b71faccee986e2128a271125177dfe91f7b7.tar.bz2 linux-stable-1b72b71faccee986e2128a271125177dfe91f7b7.zip | |
nvmet: fix file discard return status
If nvmet_copy_from_sgl failed, we falsly return successful
completion status.
Fixes: d5eff33ee6f8 ("nvmet: add simple file backed ns support")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/nvme/target/io-cmd-file.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c index 57c660e3245d..dad8d44bf90e 100644 --- a/drivers/nvme/target/io-cmd-file.c +++ b/drivers/nvme/target/io-cmd-file.c @@ -227,22 +227,24 @@ static void nvmet_file_execute_discard(struct nvmet_req *req) { int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE; struct nvme_dsm_range range; - loff_t offset; - loff_t len; - int i, ret; + loff_t offset, len; + u16 ret; + int i; for (i = 0; i <= le32_to_cpu(req->cmd->dsm.nr); i++) { - if (nvmet_copy_from_sgl(req, i * sizeof(range), &range, - sizeof(range))) + ret = nvmet_copy_from_sgl(req, i * sizeof(range), &range, + sizeof(range)); + if (ret) break; offset = le64_to_cpu(range.slba) << req->ns->blksize_shift; len = le32_to_cpu(range.nlb) << req->ns->blksize_shift; - ret = vfs_fallocate(req->ns->file, mode, offset, len); - if (ret) + if (vfs_fallocate(req->ns->file, mode, offset, len)) { + ret = NVME_SC_INTERNAL | NVME_SC_DNR; break; + } } - nvmet_req_complete(req, ret < 0 ? NVME_SC_INTERNAL | NVME_SC_DNR : 0); + nvmet_req_complete(req, ret); } static void nvmet_file_dsm_work(struct work_struct *w) |