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nfs: add a helper to set NFS_ODIRECT_RESCHED_WRITES to direct writes 

To allow pnfs LD to ask direct writes to be resend.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
This commit is contained in:
Peng Tao 2014-12-01 08:22:21 +08:00 committed by Tom Haynes
parent c829013dca
commit 012fa16dca
2 changed files with 7 additions and 0 deletions
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6
fs/nfs/direct.c
View File

@ -116,6 +116,12 @@ static inline int put_dreq(struct nfs_direct_req *dreq)
return atomic_dec_and_test(&dreq->io_count); return atomic_dec_and_test(&dreq->io_count);
} }
void nfs_direct_set_resched_writes(struct nfs_direct_req *dreq)
{
dreq->flags = NFS_ODIRECT_RESCHED_WRITES;
}
EXPORT_SYMBOL_GPL(nfs_direct_set_resched_writes);
static void static void
nfs_direct_good_bytes(struct nfs_direct_req *dreq, struct nfs_pgio_header *hdr) nfs_direct_good_bytes(struct nfs_direct_req *dreq, struct nfs_pgio_header *hdr)
{ {

1
fs/nfs/internal.h
View File

@ -502,6 +502,7 @@ static inline void nfs_inode_dio_wait(struct inode *inode)
inode_dio_wait(inode); inode_dio_wait(inode);
} }
extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq); extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq);
extern void nfs_direct_set_resched_writes(struct nfs_direct_req *dreq);
/* nfs4proc.c */ /* nfs4proc.c */
extern void __nfs4_read_done_cb(struct nfs_pgio_header *); extern void __nfs4_read_done_cb(struct nfs_pgio_header *);