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| author | Peng Tao <tao.peng@primarydata.com> | 2014-09-05 18:53:23 +0200 |
|---|---|---|
| committer | Tom Haynes <loghyr@primarydata.com> | 2015-02-03 20:06:41 +0100 |
| commit | 016256df3a7e9eeb3f4dea5ccd0e21a0b63841eb (patch) | |
| tree | 98a9c9596f3febafdbaeff99e6912f8b295dd897 /fs/nfs/pnfs.h | |
| parent | nfs41: make a helper function to send layoutreturn (diff) | |
| download | linux-016256df3a7e9eeb3f4dea5ccd0e21a0b63841eb.tar.xz linux-016256df3a7e9eeb3f4dea5ccd0e21a0b63841eb.zip | |
nfs41: add a helper to mark layout for return
It marks all matching layout segments as NFS_LSEG_LAYOUTRETURN,
which is an indicator for pnfs_put_lseg() to send layoutreturn,
and also prevents pnfs_update_layout() from using the returning
segments. Once it is set, it never gets cleared.
It also sets proper io failure bit so that pnfs path can be retried
after PNFS_LAYOUTGET_RETRY_TIMEOUT second.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
| -rw-r--r-- | fs/nfs/pnfs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 4cf0d54e14c3..bea2030eec74 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -38,6 +38,7 @@ enum { NFS_LSEG_VALID = 0, /* cleared when lseg is recalled/returned */ NFS_LSEG_ROC, /* roc bit received from server */ NFS_LSEG_LAYOUTCOMMIT, /* layoutcommit bit set for layoutcommit */ + NFS_LSEG_LAYOUTRETURN, /* layoutreturn bit set for layoutreturn */ }; /* Individual ip address */ @@ -184,6 +185,7 @@ struct pnfs_layout_hdr { u32 plh_barrier; /* ignore lower seqids */ unsigned long plh_retry_timestamp; unsigned long plh_flags; + enum pnfs_iomode plh_return_iomode; loff_t plh_lwb; /* last write byte for layoutcommit */ struct rpc_cred *plh_lc_cred; /* layoutcommit cred */ struct inode *plh_inode; @@ -274,6 +276,8 @@ void nfs4_deviceid_mark_client_invalid(struct nfs_client *clp); int pnfs_read_done_resend_to_mds(struct nfs_pgio_header *); int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *); struct nfs4_threshold *pnfs_mdsthreshold_alloc(void); +void pnfs_error_mark_layout_for_return(struct inode *inode, + struct pnfs_layout_segment *lseg); /* nfs4_deviceid_flags */ enum { |