Mike Snitzer f4265cd6dd nfs: fix incorrect error handling in LOCALIO ... [ Upstream commit ead11ac50a ] nfs4_stat_to_errno() expects a NFSv4 error code as an argument and returns a POSIX errno. The problem is LOCALIO is passing nfs4_stat_to_errno() the POSIX errno return values from filp->f_op->read_iter(), filp->f_op->write_iter() and vfs_fsync_range(). So the POSIX errno that nfs_local_pgio_done() and nfs_local_commit_done() are passing to nfs4_stat_to_errno() are failing to match any NFSv4 error code, which results in nfs4_stat_to_errno() defaulting to returning -EREMOTEIO. This causes assertions in upper layers due to -EREMOTEIO not being a valid NFSv4 error code. Fix this by updating nfs_local_pgio_done() and nfs_local_commit_done() to use the new nfs_localio_errno_to_nfs4_stat() to map a POSIX errno to an NFSv4 error code. Care was taken to factor out nfs4_errtbl_common[] to avoid duplicating the same NFS error to errno table. nfs4_errtbl_common[] is checked first by both nfs4_stat_to_errno and nfs_localio_errno_to_nfs4_stat before they check their own more specialized tables (nfs4_errtbl[] and nfs4_errtbl_localio[] respectively). While auditing the associated error mapping tables, the (ab)use of -1 for the last table entry was removed in favor of using ARRAY_SIZE to iterate the nfs_errtbl[] and nfs4_errtbl[]. And 'errno_NFSERR_IO' was removed because it caused needless obfuscation. Fixes: 70ba381e1a ("nfs: add LOCALIO support") Reported-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-02-08 09:57:59 +01:00
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common.c	nfs: fix incorrect error handling in LOCALIO	2025-02-08 09:57:59 +01:00
grace.c
Makefile
nfs_ssc.c
nfsacl.c
nfslocalio.c