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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-02-26 17:57:14 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-03-01 23:23:06 -0500
commit00fb4c9f8421c9aac3947d36ffe8e049b95f7ab1 (patch)
tree22710794d5c32ae8a18f8822741dbd8e13c0e04b /fs/nfs
parent8f8ba1d739b7047e2e1d91735716af2799ff2b1e (diff)
downloadop-kernel-dev-00fb4c9f8421c9aac3947d36ffe8e049b95f7ab1.zip
op-kernel-dev-00fb4c9f8421c9aac3947d36ffe8e049b95f7ab1.tar.gz
NFS: Remove size hack in nfs_inode_attrs_need_update()
Prior to this patch, we used to always OK attribute updates that extended the file size on the assumption that we might be performing writeback. Now that we have attribute barriers to protect the writeback related updates, we should remove this hack, as it can cause truncate() operations to apparently be reverted if/when a readahead or getattr RPC call races with our on-the-wire SETATTR. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Tested-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/inode.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index cd094d6..fef65d1 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1238,13 +1238,6 @@ static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fat
return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
}
-static int nfs_size_need_update(const struct inode *inode, const struct nfs_fattr *fattr)
-{
- if (!(fattr->valid & NFS_ATTR_FATTR_SIZE))
- return 0;
- return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
-}
-
static atomic_long_t nfs_attr_generation_counter;
static unsigned long nfs_read_attr_generation_counter(void)
@@ -1393,7 +1386,6 @@ static int nfs_inode_attrs_need_update(const struct inode *inode, const struct n
return ((long)fattr->gencount - (long)nfsi->attr_gencount) > 0 ||
nfs_ctime_need_update(inode, fattr) ||
- nfs_size_need_update(inode, fattr) ||
((long)nfsi->attr_gencount - (long)nfs_read_attr_generation_counter() > 0);
}
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