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| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-09-20 15:07:45 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-09-28 16:03:12 -0400 |
| commit | 965938b83b19aeffdc1d16ce9947c8c127e8f59b (patch) | |
| tree | 40288cb09fb91d508cc7e43ce565aa9b3a2a6137 | |
| parent | NFSv4.1: Simplify the pNFS return-on-close code (diff) | |
| download | linux-dev-965938b83b19aeffdc1d16ce9947c8c127e8f59b.tar.xz linux-dev-965938b83b19aeffdc1d16ce9947c8c127e8f59b.zip | |
NFSv4.1: Get rid of pNFS layout state "NFS_LAYOUT_INVALID"
In all cases where we set NFS_LAYOUT_INVALID, we also set NFS_LAYOUT_DESTROYED.
Furthermore, in all cases where we test for NFS_LAYOUT_INVALID, we should
also be testing for NFS_LAYOUT_DESTROYED, since the latter means that
we hold no valid layout segments.
Ergo the two are redundant.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/nfs4filelayout.c | 4 | ||||
| -rw-r--r-- | fs/nfs/nfs4filelayout.h | 6 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 7 |
3 files changed, 7 insertions, 10 deletions
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index dac2162c3ac4..6cce57e7fe55 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -190,8 +190,6 @@ static int filelayout_async_handle_error(struct rpc_task *task, * i/o and all i/o waiting on the slot table to the MDS until * layout is destroyed and a new valid layout is obtained. */ - set_bit(NFS_LAYOUT_INVALID, - &NFS_I(inode)->layout->plh_flags); pnfs_destroy_layout(NFS_I(inode)); rpc_wake_up(&tbl->slot_tbl_waitq); goto reset; @@ -281,7 +279,7 @@ filelayout_reset_to_mds(struct pnfs_layout_segment *lseg) { struct nfs4_deviceid_node *node = FILELAYOUT_DEVID_NODE(lseg); - return filelayout_test_layout_invalid(lseg->pls_layout) || + return pnfs_test_layout_destroyed(lseg->pls_layout) || filelayout_test_devid_unavailable(node); } diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 10b0f134400b..dca47d786710 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -129,12 +129,6 @@ filelayout_mark_devid_invalid(struct nfs4_deviceid_node *node) } static inline bool -filelayout_test_layout_invalid(struct pnfs_layout_hdr *lo) -{ - return test_bit(NFS_LAYOUT_INVALID, &lo->plh_flags); -} - -static inline bool filelayout_test_devid_invalid(struct nfs4_deviceid_node *node) { return test_bit(NFS_DEVICEID_INVALID, &node->flags); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index aa9fa1b1ff4a..aacda7fbb536 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -63,7 +63,6 @@ enum { NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */ NFS_LAYOUT_ROC, /* some lseg had roc bit set */ NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */ - NFS_LAYOUT_INVALID, /* layout is being destroyed */ NFS_LAYOUT_RETURNED, /* layout has already been returned */ }; @@ -279,6 +278,12 @@ pnfs_test_layout_returned(struct pnfs_layout_hdr *lo) return test_bit(NFS_LAYOUT_RETURNED, &lo->plh_flags); } +static inline bool +pnfs_test_layout_destroyed(struct pnfs_layout_hdr *lo) +{ + return test_bit(NFS_LAYOUT_DESTROYED, &lo->plh_flags); +} + static inline struct pnfs_layout_segment * pnfs_get_lseg(struct pnfs_layout_segment *lseg) { |