diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-23 16:00:10 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-23 16:00:10 -0700 |
commit | 9157141c95bc3ffcdae93fde5d5aafee7ce6e39a (patch) | |
tree | d19dd16a9caeec931fabfb31213aac9dda68af6d /net/sunrpc/xprtrdma/svc_rdma_rw.c | |
parent | 6f7948f566bf423ddf5ff58dc0198afcf37c0b64 (diff) | |
parent | 108b833cde9c9b93204e6a4e455829a67f9785c3 (diff) |
Merge tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Chuck Lever fixed a problem with NFSv4.0 callbacks over GSS from
multi-homed servers.
The only new feature is a minor bit of protocol (change_attr_type)
which the client doesn't even use yet.
Other than that, various bugfixes and cleanup"
* tag 'nfsd-4.19-1' of git://linux-nfs.org/~bfields/linux: (27 commits)
sunrpc: Add comment defining gssd upcall API keywords
nfsd: Remove callback_cred
nfsd: Use correct credential for NFSv4.0 callback with GSS
sunrpc: Extract target name into svc_cred
sunrpc: Enable the kernel to specify the hostname part of service principals
sunrpc: Don't use stack buffer with scatterlist
rpc: remove unneeded variable 'ret' in rdma_listen_handler
nfsd: use true and false for boolean values
nfsd: constify write_op[]
fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id
NFSD: Handle full-length symlinks
NFSD: Refactor the generic write vector fill helper
svcrdma: Clean up Read chunk path
svcrdma: Avoid releasing a page in svc_xprt_release()
nfsd: Mark expected switch fall-through
sunrpc: remove redundant variables 'checksumlen','blocksize' and 'data'
nfsd: fix leaked file lock with nfs exported overlayfs
nfsd: don't advertise a SCSI layout for an unsupported request_queue
nfsd: fix corrupted reply to badly ordered compound
nfsd: clarify check_op_ordering
...
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_rw.c')
-rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_rw.c | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c index 04cb3363172a..dc1951759a8e 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_rw.c +++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c @@ -680,6 +680,7 @@ static int svc_rdma_build_read_chunk(struct svc_rqst *rqstp, struct svc_rdma_read_info *info, __be32 *p) { + unsigned int i; int ret; ret = -EINVAL; @@ -702,6 +703,12 @@ static int svc_rdma_build_read_chunk(struct svc_rqst *rqstp, info->ri_chunklen += rs_length; } + /* Pages under I/O have been copied to head->rc_pages. + * Prevent their premature release by svc_xprt_release() . + */ + for (i = 0; i < info->ri_readctxt->rc_page_count; i++) + rqstp->rq_pages[i] = NULL; + return ret; } @@ -817,7 +824,6 @@ int svc_rdma_recv_read_chunk(struct svcxprt_rdma *rdma, struct svc_rqst *rqstp, struct svc_rdma_recv_ctxt *head, __be32 *p) { struct svc_rdma_read_info *info; - struct page **page; int ret; /* The request (with page list) is constructed in @@ -844,27 +850,15 @@ int svc_rdma_recv_read_chunk(struct svcxprt_rdma *rdma, struct svc_rqst *rqstp, ret = svc_rdma_build_normal_read_chunk(rqstp, info, p); else ret = svc_rdma_build_pz_read_chunk(rqstp, info, p); - - /* Mark the start of the pages that can be used for the reply */ - if (info->ri_pageoff > 0) - info->ri_pageno++; - rqstp->rq_respages = &rqstp->rq_pages[info->ri_pageno]; - rqstp->rq_next_page = rqstp->rq_respages + 1; - if (ret < 0) - goto out; + goto out_err; ret = svc_rdma_post_chunk_ctxt(&info->ri_cc); - -out: - /* Read sink pages have been moved from rqstp->rq_pages to - * head->rc_arg.pages. Force svc_recv to refill those slots - * in rq_pages. - */ - for (page = rqstp->rq_pages; page < rqstp->rq_respages; page++) - *page = NULL; - if (ret < 0) - svc_rdma_read_info_free(info); + goto out_err; + return 0; + +out_err: + svc_rdma_read_info_free(info); return ret; } |