From: Chaitanya Kulkarni kch@nvidia.com
[ Upstream commit 2caecd62ea5160803b25d96cb1a14ce755c2c259 ]
Instead of calling vfs_getattr() use i_size_read() to read the size of file so we can read the size of not only file type but also block type with one call. This is needed to implement buffered_io support for the NVMeOF block device backend.
We also change return type of function nvmet_file_ns_revalidate() from int to void, since this function does not return any meaning value.
Signed-off-by: Chaitanya Kulkarni kch@nvidia.com Signed-off-by: Christoph Hellwig hch@lst.de Stable-dep-of: ab76e7206b67 ("nvmet: fix error handling in nvmet_execute_identify_cns_cs_ns()") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/target/io-cmd-file.c | 17 ++++------------- drivers/nvme/target/nvmet.h | 2 +- 2 files changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c index eadba13b276de..098b6bf12cd0a 100644 --- a/drivers/nvme/target/io-cmd-file.c +++ b/drivers/nvme/target/io-cmd-file.c @@ -13,16 +13,9 @@
#define NVMET_MIN_MPOOL_OBJ 16
-int nvmet_file_ns_revalidate(struct nvmet_ns *ns) +void nvmet_file_ns_revalidate(struct nvmet_ns *ns) { - struct kstat stat; - int ret; - - ret = vfs_getattr(&ns->file->f_path, &stat, STATX_SIZE, - AT_STATX_FORCE_SYNC); - if (!ret) - ns->size = stat.size; - return ret; + ns->size = i_size_read(ns->file->f_mapping->host); }
void nvmet_file_ns_disable(struct nvmet_ns *ns) @@ -40,7 +33,7 @@ void nvmet_file_ns_disable(struct nvmet_ns *ns) int nvmet_file_ns_enable(struct nvmet_ns *ns) { int flags = O_RDWR | O_LARGEFILE; - int ret; + int ret = 0;
if (!ns->buffered_io) flags |= O_DIRECT; @@ -54,9 +47,7 @@ int nvmet_file_ns_enable(struct nvmet_ns *ns) return ret; }
- ret = nvmet_file_ns_revalidate(ns); - if (ret) - goto err; + nvmet_file_ns_revalidate(ns);
/* * i_blkbits can be greater than the universally accepted upper bound, diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index fdb06a9d430d2..f3e42d2c85c6c 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -542,7 +542,7 @@ u16 nvmet_bdev_flush(struct nvmet_req *req); u16 nvmet_file_flush(struct nvmet_req *req); void nvmet_ns_changed(struct nvmet_subsys *subsys, u32 nsid); void nvmet_bdev_ns_revalidate(struct nvmet_ns *ns); -int nvmet_file_ns_revalidate(struct nvmet_ns *ns); +void nvmet_file_ns_revalidate(struct nvmet_ns *ns); void nvmet_ns_revalidate(struct nvmet_ns *ns); u16 blk_to_nvme_status(struct nvmet_req *req, blk_status_t blk_sts);