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

pNFS: Don't allocate more pages than we need to fit a layoutget response

Browse Source 
For the 'files' and 'flexfiles' layout types, we do not expect the reply
to be any larger than 4k. The block and scsi layout types are a little more
greedy, so we keep allocating the maximum response size for now.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2018-09-03 13:12:15 -04:00
parent a2791d3a2c
commit 28ced9a84c
4 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
fs/nfs/flexfilelayout/flexfilelayout.c
View File

@@ -2356,6 +2356,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = {
.name = "LAYOUT_FLEX_FILES",
.owner = THIS_MODULE,
.flags = PNFS_LAYOUTGET_ON_OPEN,
.max_layoutget_response = 4096, /* 1 page or so... */
.set_layoutdriver = ff_layout_set_layoutdriver,
.alloc_layout_hdr = ff_layout_alloc_layout_hdr,
.free_layout_hdr = ff_layout_free_layout_hdr,