diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-12-28 11:48:14 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-12-28 14:33:04 -0500 |
| commit | 0654cc726fc6eed6dca915fb65ba7975716ea080 (patch) | |
| tree | 367e0058259d17d89ffec6d02ea333aa4bb5485f /fs/nfs | |
| parent | ab7d763e477c5be33ac9cffc68e808bbd69371f7 (diff) | |
| download | op-kernel-dev-0654cc726fc6eed6dca915fb65ba7975716ea080.zip op-kernel-dev-0654cc726fc6eed6dca915fb65ba7975716ea080.tar.gz | |
NFSv4.1/pNFS: Add a helper to mark the layout as returned
This ensures that we don't reuse the stateid if a layout return or
implied layout return means that we've returned all layout segments
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/callback_proc.c | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 3 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 1 | ||||
| -rw-r--r-- | fs/nfs/pnfs.h | 13 |
4 files changed, 17 insertions, 1 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 807eb6e..716cbff 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -192,6 +192,7 @@ static u32 initiate_file_draining(struct nfs_client *clp, NFS_SERVER(ino)->pnfs_curr_ld->return_range(lo, &args->cbl_range); } + pnfs_mark_layout_returned_if_empty(lo); unlock: spin_unlock(&ino->i_lock); pnfs_free_lseg_list(&free_me_list); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index fcd7a90..883da29 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8049,9 +8049,10 @@ static void nfs4_layoutreturn_release(void *calldata) dprintk("--> %s\n", __func__); spin_lock(&lo->plh_inode->i_lock); + pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range); + pnfs_mark_layout_returned_if_empty(lo); if (lrp->res.lrs_present) pnfs_set_layout_stateid(lo, &lrp->res.stateid, true); - pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range); pnfs_clear_layoutreturn_waitbit(lo); lo->plh_block_lgets--; spin_unlock(&lo->plh_inode->i_lock); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 6095a8d..b3fb6bb 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1149,6 +1149,7 @@ void pnfs_roc_set_barrier(struct inode *ino, u32 barrier) spin_lock(&ino->i_lock); lo = NFS_I(ino)->layout; + pnfs_mark_layout_returned_if_empty(lo); if (pnfs_seqid_is_newer(barrier, lo->plh_barrier)) lo->plh_barrier = barrier; spin_unlock(&ino->i_lock); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index d1990e9..be24a75 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -556,6 +556,19 @@ pnfs_calc_offset_length(u64 offset, u64 end) return 1 + end - offset; } +/** + * pnfs_mark_layout_returned_if_empty - marks the layout as returned + * @lo: layout header + * + * Note: Caller must hold inode->i_lock + */ +static inline void +pnfs_mark_layout_returned_if_empty(struct pnfs_layout_hdr *lo) +{ + if (list_empty(&lo->plh_segs)) + set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); +} + extern unsigned int layoutstats_timer; #ifdef NFS_DEBUG |
