diff options
| author | Fred Isaman <iisaman@citi.umich.edu> | 2011-07-30 20:52:44 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-31 12:18:16 -0400 |
| commit | a60d2ebd93d3c5db5b6913c4844b8e6bd3b5538e (patch) | |
| tree | 34ef84344eb3cf3418c5ffe0058e65b3a3ec3dff /fs/nfs/blocklayout/blocklayout.c | |
| parent | 025a70ed6518f635f66f314d6959718be79638db (diff) | |
pnfsblock: lseg alloc and free
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: fix bug getting pnfs_layout_type in translate_devid().]
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Zhang Jingwang <Jingwang.Zhang@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/blocklayout/blocklayout.c')
| -rw-r--r-- | fs/nfs/blocklayout/blocklayout.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index c83878441047..e7bc7a57b3bb 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -115,16 +115,35 @@ static struct pnfs_layout_hdr *bl_alloc_layout_hdr(struct inode *inode, return &bl->bl_layout; } -static void -bl_free_lseg(struct pnfs_layout_segment *lseg) +static void bl_free_lseg(struct pnfs_layout_segment *lseg) { + dprintk("%s enter\n", __func__); + kfree(lseg); } -static struct pnfs_layout_segment * -bl_alloc_lseg(struct pnfs_layout_hdr *lo, - struct nfs4_layoutget_res *lgr, gfp_t gfp_flags) +/* We pretty much ignore lseg, and store all data layout wide, so we + * can correctly merge. + */ +static struct pnfs_layout_segment *bl_alloc_lseg(struct pnfs_layout_hdr *lo, + struct nfs4_layoutget_res *lgr, + gfp_t gfp_flags) { - return NULL; + struct pnfs_layout_segment *lseg; + int status; + + dprintk("%s enter\n", __func__); + lseg = kzalloc(sizeof(*lseg), gfp_flags); + if (!lseg) + return ERR_PTR(-ENOMEM); + status = nfs4_blk_process_layoutget(lo, lgr, gfp_flags); + if (status) { + /* We don't want to call the full-blown bl_free_lseg, + * since on error extents were not touched. + */ + kfree(lseg); + return ERR_PTR(status); + } + return lseg; } static void |