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NFSv4.2 fix handling of sr_eof in SEEK's reply
Currently the client ignores the value of the sr_eof of the SEEK
operation. According to the spec, if the server didn't find the
requested extent and reached the end of the file, the server
would return sr_eof=true. In case the request for DATA and no
data was found (ie in the middle of the hole), then the lseek
expects that ENXIO would be returned.
Fixes: 1c6dcbe5ce
("NFS: Implement SEEK")
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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@ -667,7 +667,10 @@ static loff_t _nfs42_proc_llseek(struct file *filep,
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if (status)
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return status;
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return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes);
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if (whence == SEEK_DATA && res.sr_eof)
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return -NFS4ERR_NXIO;
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else
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return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes);
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}
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loff_t nfs42_proc_llseek(struct file *filep, loff_t offset, int whence)
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