diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/pnfs.c | 3 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 18 |
2 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 108a619861e5..893f6b5afe6a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -615,6 +615,7 @@ pnfs_destroy_layout(struct nfs_inode *nfsi) pnfs_get_layout_hdr(lo); pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RO_FAILED); pnfs_layout_clear_fail_bit(lo, NFS_LAYOUT_RW_FAILED); + pnfs_clear_retry_layoutget(lo); spin_unlock(&nfsi->vfs_inode.i_lock); pnfs_free_lseg_list(&tmp_list); pnfs_put_layout_hdr(lo); @@ -1066,6 +1067,7 @@ bool pnfs_roc(struct inode *ino) if (!lo || !test_and_clear_bit(NFS_LAYOUT_ROC, &lo->plh_flags) || test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) goto out_nolayout; + pnfs_clear_retry_layoutget(lo); list_for_each_entry_safe(lseg, tmp, &lo->plh_segs, pls_list) if (test_bit(NFS_LSEG_ROC, &lseg->pls_flags)) { mark_lseg_invalid(lseg, &tmp_list); @@ -1491,6 +1493,7 @@ lookup_again: arg.length = PAGE_CACHE_ALIGN(arg.length); lseg = send_layoutget(lo, ctx, &arg, gfp_flags); + pnfs_clear_retry_layoutget(lo); atomic_dec(&lo->plh_outstanding); out_put_layout_hdr: if (first) { diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 080bf90498d4..fed6ae067acb 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -99,6 +99,7 @@ enum { NFS_LAYOUT_RETURN_BEFORE_CLOSE, /* Return this layout before close */ NFS_LAYOUT_INVALID_STID, /* layout stateid id is invalid */ NFS_LAYOUT_FIRST_LAYOUTGET, /* Serialize first layoutget */ + NFS_LAYOUT_RETRY_LAYOUTGET, /* Retry layoutget */ }; enum layoutdriver_policy_flags { @@ -350,6 +351,23 @@ nfs4_get_deviceid(struct nfs4_deviceid_node *d) return d; } +static inline void pnfs_set_retry_layoutget(struct pnfs_layout_hdr *lo) +{ + if (!test_and_set_bit(NFS_LAYOUT_RETRY_LAYOUTGET, &lo->plh_flags)) + atomic_inc(&lo->plh_refcount); +} + +static inline void pnfs_clear_retry_layoutget(struct pnfs_layout_hdr *lo) +{ + if (test_and_clear_bit(NFS_LAYOUT_RETRY_LAYOUTGET, &lo->plh_flags)) + atomic_dec(&lo->plh_refcount); +} + +static inline bool pnfs_should_retry_layoutget(struct pnfs_layout_hdr *lo) +{ + return test_bit(NFS_LAYOUT_RETRY_LAYOUTGET, &lo->plh_flags); +} + static inline struct pnfs_layout_segment * pnfs_get_lseg(struct pnfs_layout_segment *lseg) { |