Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
---
fs/nfs/pnfs.c | 21 ++++++++++++++++++---
fs/nfs/pnfs.h | 3 +++
2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index afc64b3..2254362 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -188,13 +188,28 @@ get_layout_hdr(struct pnfs_layout_hdr *lo)
atomic_inc(&lo->plh_refcount);
}
+static struct pnfs_layout_hdr *
+pnfs_alloc_layout_hdr(struct inode *ino)
+{
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld;
+ return ld->alloc_layout_hdr ? ld->alloc_layout_hdr(ino) :
+ kzalloc(sizeof(struct pnfs_layout_hdr), GFP_KERNEL);
+}
+
+static void
+pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo)
+{
+ struct pnfs_layoutdriver_type *ld = NFS_SERVER(lo->plh_inode)->pnfs_curr_ld;
+ return ld->alloc_layout_hdr ? ld->free_layout_hdr(lo) : kfree(lo);
+}
+
static void
destroy_layout_hdr(struct pnfs_layout_hdr *lo)
{
dprintk("%s: freeing layout cache %p\n", __func__, lo);
BUG_ON(!list_empty(&lo->plh_layouts));
NFS_I(lo->plh_inode)->layout = NULL;
- kfree(lo);
+ pnfs_free_layout_hdr(lo);
}
static void
@@ -857,7 +872,7 @@ alloc_init_layout_hdr(struct inode *ino)
{
struct pnfs_layout_hdr *lo;
- lo = kzalloc(sizeof(struct pnfs_layout_hdr), GFP_KERNEL);
+ lo = pnfs_alloc_layout_hdr(ino);
if (!lo)
return NULL;
atomic_set(&lo->plh_refcount, 1);
@@ -890,7 +905,7 @@ pnfs_find_alloc_layout(struct inode *ino)
if (likely(nfsi->layout == NULL)) /* Won the race? */
nfsi->layout = new;
else
- kfree(new);
+ pnfs_free_layout_hdr(new);
return nfsi->layout;
}
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index bb266ba..35662ac 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -83,6 +83,9 @@ struct pnfs_layoutdriver_type {
int (*set_layoutdriver) (struct nfs_server *);
int (*unset_layoutdriver) (struct nfs_server *);
+ struct pnfs_layout_hdr * (*alloc_layout_hdr) (struct inode *inode);
+ void (*free_layout_hdr) (struct pnfs_layout_hdr *);
+
struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr);
void (*free_lseg) (struct pnfs_layout_segment *lseg);
--
1.7.3.4
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