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| author |   Christoph Hellwig <hch@lst.de> | 2014-09-10 08:23:29 -0700 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-10 12:47:02 -0700 |
| commit | 7c5d187581f57657de79e795602d9f1a0254c88c (patch) | |
| tree | 9e316ee5e0f348dc56244461255356eb6f8d2933 /fs/nfs | |
| parent | NFS: Fix a compile warning when !(CONFIG_NFS_V3 || CONFIG_NFS_V4) (diff) | |
| download | linux-dev-7c5d187581f57657de79e795602d9f1a0254c88c.tar.xz linux-dev-7c5d187581f57657de79e795602d9f1a0254c88c.zip | |
pnfs: force a layout commit when encountering busy segments during recall
Expedite layout recall processing by forcing a layout commit when
we see busy segments. Without it the layout recall might have to wait
until the VM decided to start writeback for the file, which can introduce
long delays.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/callback_proc.c | 8 | ||||
| -rw-r--r-- | fs/nfs/pnfs.c | 3 |
2 files changed, 10 insertions, 1 deletions
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 41db5258e7a7..0d269515c64d 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -171,6 +171,13 @@ static u32 initiate_file_draining(struct nfs_client *clp, goto out; ino = lo->plh_inode; + + spin_lock(&ino->i_lock); + pnfs_set_layout_stateid(lo, &args->cbl_stateid, true); + spin_unlock(&ino->i_lock); + + 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, @@ -178,7 +185,6 @@ static u32 initiate_file_draining(struct nfs_client *clp, rv = NFS4ERR_DELAY; else rv = NFS4ERR_NOMATCHING_LAYOUT; - pnfs_set_layout_stateid(lo, &args->cbl_stateid, true); spin_unlock(&ino->i_lock); pnfs_free_lseg_list(&free_me_list); pnfs_put_layout_hdr(lo); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 8827ab130ed3..ce5d1ea695d1 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -594,6 +594,9 @@ pnfs_layout_free_bulk_destroy_list(struct list_head *layout_list, dprintk("%s freeing layout for inode %lu\n", __func__, lo->plh_inode->i_ino); inode = lo->plh_inode; + + pnfs_layoutcommit_inode(inode, false); + spin_lock(&inode->i_lock); list_del_init(&lo->plh_bulk_destroy); lo->plh_block_lgets++; /* permanently block new LAYOUTGETs */ |