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nfsd: add a nfserrno mapping for -E2BIG to nfserr_fbig 

I saw this pop up with some pynfs testing:

    [  123.609992] nfsd: non-standard errno: -7

...and -7 is -E2BIG. I think what happened is that XFS returned -E2BIG
due to some xattr operations with the ACL10 pynfs TEST (I guess it has
limited xattr size?).

Add a better mapping for that error since it's possible that we'll need
it. How about we convert it to NFSERR_FBIG? As Bruce points out, they
both have "BIG" in the name so it must be good.

Also, turn the printk in this function into a WARN() so that we can get
a bit more information about situations that don't have proper mappings.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton 2014-07-03 15:15:54 -04:00 committed by J. Bruce Fields
parent 722b620d18
commit 62814d6a9b
1 changed files with 2 additions and 1 deletions
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3
fs/nfsd/nfsproc.c
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@ -717,6 +717,7 @@ nfserrno (int errno)
{ nfserr_noent, -ENOENT },
{ nfserr_io, -EIO },
{ nfserr_nxio, -ENXIO },
{ nfserr_fbig, -E2BIG },
{ nfserr_acces, -EACCES },
{ nfserr_exist, -EEXIST },
{ nfserr_xdev, -EXDEV },
@ -751,7 +752,7 @@ nfserrno (int errno)
if (nfs_errtbl[i].syserr == errno)
return nfs_errtbl[i].nfserr;
}
printk (KERN_INFO "nfsd: non-standard errno: %d\n", errno);
WARN(1, "nfsd: non-standard errno: %d\n", errno);
return nfserr_io;
}