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NFSv4.1: filelayout async error handler

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Use our own async error handler.
Mark the layout as failed and retry i/o through the MDS on specified errors.

Update the mds_offset in nfs_readpage_retry so that a failed short-read retry
to a DS gets correctly resent through the MDS.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson
2011-03-01 01:34:20 +00:00
committed by Trond Myklebust
parent dc70d7b318
commit cbdabc7f8b
8 changed files with 123 additions and 6 deletions
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fs/nfs/internal.h
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@@ -285,6 +285,7 @@ extern int nfs_migrate_page(struct address_space *,
#endif
/* nfs4proc.c */
extern void nfs4_reset_read(struct rpc_task *task, struct nfs_read_data *data);
extern int nfs4_init_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
const char *ip_addr,