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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-06-23 23:55:37 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2018-07-26 23:25:25 +0300 |
| commit | f0b429819b5fbcedd1be15da7277292a0431ddd0 (patch) | |
| tree | b4d7f32117d3f714a397b59dff8cbea623fcd60a /fs/nfs/pnfs.c | |
| parent | 00bcbe119f915dec256f211f9dbfc93cb64773bc (diff) | |
| download | linux-f0b429819b5fbcedd1be15da7277292a0431ddd0.tar.xz | |
pNFS: Ignore non-recalled layouts in pnfs_layout_need_return()
If a layout has been recalled, then we should fire off a layoutreturn as
soon as all the layout segments that match the recall have been retired.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
| -rw-r--r-- | fs/nfs/pnfs.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 17776ef734d7..bf7f0b21066d 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1160,12 +1160,21 @@ static bool pnfs_layout_need_return(struct pnfs_layout_hdr *lo) { struct pnfs_layout_segment *s; + enum pnfs_iomode iomode; + u32 seq; if (!test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) return false; - /* Defer layoutreturn until all lsegs are done */ + seq = lo->plh_return_seq; + iomode = lo->plh_return_iomode; + + /* Defer layoutreturn until all recalled lsegs are done */ list_for_each_entry(s, &lo->plh_segs, pls_list) { + if (seq && pnfs_seqid_is_newer(s->pls_seq, seq)) + continue; + if (iomode != IOMODE_ANY && s->pls_range.iomode != iomode) + continue; if (test_bit(NFS_LSEG_LAYOUTRETURN, &s->pls_flags)) return false; } |