iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pNFS: If we have to delay the layout callback, mark the layout for return

Browse Source 
If the client needs to delay the layout callback, then speed up the recall
process by marking the remaining layout segments to be actively returned
by the client.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2015-12-28 10:28:59 -05:00
parent 0654cc726f
commit fc7ff36747
3 changed files with 18 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
fs/nfs/callback_proc.c
View File

@@ -181,9 +181,19 @@ static u32 initiate_file_draining(struct nfs_client *clp,
pnfs_layoutcommit_inode(ino, false);
spin_lock(&ino->i_lock);
if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) ||
pnfs_mark_matching_lsegs_invalid(lo, &free_me_list,
/*
* Enforce RFC5661 Section 12.5.5.2.1.5 (Bulk Recall and Return)
*/
if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
rv = NFS4ERR_DELAY;
goto unlock;
}
if (pnfs_mark_matching_lsegs_invalid(lo, &free_me_list,
&args->cbl_range)) {
pnfs_mark_matching_lsegs_return(lo,
&free_me_list,
&args->cbl_range);
rv = NFS4ERR_DELAY;
goto unlock;
}