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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-19 10:13:05 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2020-03-26 10:52:04 -0400 |
| commit | 329651b1f1965cdc0a66df5717d3ac2fccddc740 (patch) | |
| tree | ebb3d26b5765be8fe7efd95d5bc0fa20ba10ef51 /fs/nfs/flexfilelayout | |
| parent | SUNRPC: fix krb5p mount to provide large enough buffer in rq_rcvsize (diff) | |
| download | linux-dev-329651b1f1965cdc0a66df5717d3ac2fccddc740.tar.xz linux-dev-329651b1f1965cdc0a66df5717d3ac2fccddc740.zip | |
pNFS/flexfiles: Simplify allocation of the mirror array
Just allocate the array at the end of the layout segment structure,
instead of allocating it as a separate array of pointers.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/flexfilelayout')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 21 | ||||
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.h | 2 |
2 files changed, 6 insertions, 17 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index e7d8ae4d0cc5..19728206e9c6 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -248,18 +248,10 @@ static void ff_layout_put_mirror(struct nfs4_ff_layout_mirror *mirror) static void ff_layout_free_mirror_array(struct nfs4_ff_layout_segment *fls) { - int i; + u32 i; - if (fls->mirror_array) { - for (i = 0; i < fls->mirror_array_cnt; i++) { - /* normally mirror_ds is freed in - * .free_deviceid_node but we still do it here - * for .alloc_lseg error path */ - ff_layout_put_mirror(fls->mirror_array[i]); - } - kfree(fls->mirror_array); - fls->mirror_array = NULL; - } + for (i = 0; i < fls->mirror_array_cnt; i++) + ff_layout_put_mirror(fls->mirror_array[i]); } static int ff_layout_check_layout(struct nfs4_layoutget_res *lgr) @@ -400,16 +392,13 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh, goto out_err_free; rc = -ENOMEM; - fls = kzalloc(sizeof(*fls), gfp_flags); + fls = kzalloc(struct_size(fls, mirror_array, mirror_array_cnt), + gfp_flags); if (!fls) goto out_err_free; fls->mirror_array_cnt = mirror_array_cnt; fls->stripe_unit = stripe_unit; - fls->mirror_array = kcalloc(fls->mirror_array_cnt, - sizeof(fls->mirror_array[0]), gfp_flags); - if (fls->mirror_array == NULL) - goto out_err_free; for (i = 0; i < fls->mirror_array_cnt; i++) { struct nfs4_ff_layout_mirror *mirror; diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h index 2f369966abf7..354a031c69b1 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.h +++ b/fs/nfs/flexfilelayout/flexfilelayout.h @@ -99,7 +99,7 @@ struct nfs4_ff_layout_segment { u64 stripe_unit; u32 flags; u32 mirror_array_cnt; - struct nfs4_ff_layout_mirror **mirror_array; + struct nfs4_ff_layout_mirror *mirror_array[]; }; struct nfs4_flexfile_layout { |