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authorTrond Myklebust <trond.myklebust@hammerspace.com>2019-08-27 03:41:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-21 08:12:51 +0300
commitccc4f53a7d4576d25e96dfaa9b9a902f0755d08c (patch)
tree2b5a12dcd2e1cfa797c52df7aaa9a1e7e9688751 /fs/nfs
parent1ad4aaa984dc234b5b0c0f816e09cc40b4632409 (diff)
downloadlinux-ccc4f53a7d4576d25e96dfaa9b9a902f0755d08c.tar.xz
NFSv2: Fix eof handling
[ Upstream commit 71affe9be45a5c60b9772e1b2701710712637274 ] If we received a reply from the server with a zero length read and no error, then that implies we are at eof. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/proc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index b417bbcd9704..80ecdf2ec8b6 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -588,7 +588,8 @@ static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
/* Emulate the eof flag, which isn't normally needed in NFSv2
* as it is guaranteed to always return the file attributes
*/
- if (hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
+ if ((hdr->res.count == 0 && hdr->args.count > 0) ||
+ hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
hdr->res.eof = 1;
}
return 0;