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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-08-04 15:57:13 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-08-12 14:56:19 -0400
commit5c4a79fb2b1cd80cb58986f6acf402721901c545 (patch)
treecd5c7e472b425d297910b7bc0797e649d9faa662 /fs
parent8f70f53a87007bdbb34c79d11178a153914f5db1 (diff)
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NFSv4.1/pnfs: Don't prevent layoutgets when doing return-on-close
If there is an outstanding return-on-close, then we just want new layoutget requests to wait rather than fail. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/pnfs.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index e3a47ee15474..8c5f9f59efbb 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1105,7 +1105,9 @@ bool pnfs_roc(struct inode *ino)
}
if (!found)
goto out_noroc;
- lo->plh_block_lgets++;
+ if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
+ goto out_noroc;
+ lo->plh_return_iomode = IOMODE_ANY;
pnfs_get_layout_hdr(lo); /* matched in pnfs_roc_release */
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&tmp_list);
@@ -1133,7 +1135,7 @@ void pnfs_roc_release(struct inode *ino)
spin_lock(&ino->i_lock);
lo = NFS_I(ino)->layout;
- lo->plh_block_lgets--;
+ pnfs_clear_layoutreturn_waitbit(lo);
if (atomic_dec_and_test(&lo->plh_refcount)) {
pnfs_detach_layout_hdr(lo);
spin_unlock(&ino->i_lock);