diff options
| author | Peng Tao <bergwolf@gmail.com> | 2012-09-25 14:55:57 +0800 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-10-08 19:31:55 -0400 |
| commit | 35754bc00e94e598c432ad02f7a3d3063c4402e3 (patch) | |
| tree | f950c3108074aae7b14a4354ed9af370047f0460 /fs/nfs/direct.c | |
| parent | 19c54abab79404c027ff61f13468e78a3e2a0065 (diff) | |
NFS: track direct IO left bytes
Signed-off-by: Peng Tao <tao.peng@emc.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/direct.c')
| -rw-r--r-- | fs/nfs/direct.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 253d397780b1..4be8673ee18d 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -78,6 +78,7 @@ struct nfs_direct_req { atomic_t io_count; /* i/os we're waiting for */ spinlock_t lock; /* protect completion state */ ssize_t count, /* bytes actually processed */ + bytes_left, /* bytes left to be sent */ error; /* any reported error */ struct completion completion; /* wait for i/o completion */ @@ -390,6 +391,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_pageio_descriptor *de user_addr += req_len; pos += req_len; count -= req_len; + dreq->bytes_left -= req_len; } /* The nfs_page now hold references to these pages */ nfs_direct_release_pages(pagevec, npages); @@ -457,6 +459,7 @@ static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov, goto out; dreq->inode = inode; + dreq->bytes_left = iov_length(iov, nr_segs); dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp)); l_ctx = nfs_get_lock_context(dreq->ctx); if (IS_ERR(l_ctx)) { @@ -710,6 +713,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_pageio_descriptor *d user_addr += req_len; pos += req_len; count -= req_len; + dreq->bytes_left -= req_len; } /* The nfs_page now hold references to these pages */ nfs_direct_release_pages(pagevec, npages); @@ -860,6 +864,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov, goto out; dreq->inode = inode; + dreq->bytes_left = count; dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp)); l_ctx = nfs_get_lock_context(dreq->ctx); if (IS_ERR(l_ctx)) { |