Merge branch 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (25 commits)
nfs: set vs_hidden on nfs4_callback_version4 (try #2)
pnfs-obj: Support for RAID5 read-4-write interface.
pnfs-obj: move to ore 03: Remove old raid engine
pnfs-obj: move to ore 02: move to ORE
pnfs-obj: move to ore 01: ore_layout & ore_components
pnfs-obj: Rename objlayout_io_state => objlayout_io_res
pnfs-obj: Get rid of objlayout_{alloc,free}_io_state
pnfs-obj: Return PNFS_NOT_ATTEMPTED in case of read/write_pagelist
pnfs-obj: Remove redundant EOF from objlayout_io_state
nfs: Remove unused variable from write.c
nfs: Fix unused variable warning from file.c
NFS: Remove no-op less-than-zero checks on unsigned variables.
NFS: Clean up nfs4_xdr_dec_secinfo()
NFS: Fix documenting comment for nfs_create_request()
NFS4: fix cb_recallany decode error
nfs4: serialize layoutcommit
SUNRPC: remove rpcbind clients destruction on module cleanup
SUNRPC: remove rpcbind clients creation during service registering
NFSd: call svc rpcbind cleanup explicitly
SUNRPC: cleanup service destruction
...
diff --git a/fs/exofs/Kconfig b/fs/exofs/Kconfig
index fa9a286..da42f32 100644
--- a/fs/exofs/Kconfig
+++ b/fs/exofs/Kconfig
@@ -5,7 +5,7 @@
# selected by any of the users.
config ORE
tristate
- depends on EXOFS_FS
+ depends on EXOFS_FS || PNFS_OBJLAYOUT
select ASYNC_XOR
default SCSI_OSD_ULD
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 918ad64..726e59a 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -488,17 +488,18 @@
struct xdr_stream *xdr,
struct cb_recallanyargs *args)
{
- __be32 *p;
+ uint32_t bitmap[2];
+ __be32 *p, status;
args->craa_addr = svc_addr(rqstp);
p = read_buf(xdr, 4);
if (unlikely(p == NULL))
return htonl(NFS4ERR_BADXDR);
args->craa_objs_to_keep = ntohl(*p++);
- p = read_buf(xdr, 4);
- if (unlikely(p == NULL))
- return htonl(NFS4ERR_BADXDR);
- args->craa_type_mask = ntohl(*p);
+ status = decode_bitmap(xdr, bitmap);
+ if (unlikely(status))
+ return status;
+ args->craa_type_mask = bitmap[0];
return 0;
}
@@ -986,4 +987,5 @@
.vs_proc = nfs4_callback_procedures1,
.vs_xdrsize = NFS4_CALLBACK_XDRSIZE,
.vs_dispatch = NULL,
+ .vs_hidden = 1,
};
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 91c01f0..0a1f831 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -137,11 +137,9 @@
static int
nfs_file_release(struct inode *inode, struct file *filp)
{
- struct dentry *dentry = filp->f_path.dentry;
-
dprintk("NFS: release(%s/%s)\n",
- dentry->d_parent->d_name.name,
- dentry->d_name.name);
+ filp->f_path.dentry->d_parent->d_name.name,
+ filp->f_path.dentry->d_name.name);
nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
return nfs_release(inode, filp);
@@ -228,14 +226,13 @@
struct dentry * dentry = iocb->ki_filp->f_path.dentry;
struct inode * inode = dentry->d_inode;
ssize_t result;
- size_t count = iov_length(iov, nr_segs);
if (iocb->ki_filp->f_flags & O_DIRECT)
return nfs_file_direct_read(iocb, iov, nr_segs, pos);
dprintk("NFS: read(%s/%s, %lu@%lu)\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
- (unsigned long) count, (unsigned long) pos);
+ (unsigned long) iov_length(iov, nr_segs), (unsigned long) pos);
result = nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
if (!result) {
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 0911941..12185aa 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -449,9 +449,8 @@
fl->dsaddr = dsaddr;
- if (fl->first_stripe_index < 0 ||
- fl->first_stripe_index >= dsaddr->stripe_count) {
- dprintk("%s Bad first_stripe_index %d\n",
+ if (fl->first_stripe_index >= dsaddr->stripe_count) {
+ dprintk("%s Bad first_stripe_index %u\n",
__func__, fl->first_stripe_index);
goto out_put;
}
@@ -552,7 +551,7 @@
/* Note that a zero value for num_fh is legal for STRIPE_SPARSE.
* Futher checking is done in filelayout_check_layout */
- if (fl->num_fh < 0 || fl->num_fh >
+ if (fl->num_fh >
max(NFS4_PNFS_MAX_STRIPE_CNT, NFS4_PNFS_MAX_MULTI_CNT))
goto out_err;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d2ae413..b60fddf 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5950,6 +5950,7 @@
{
struct nfs4_layoutcommit_data *data = calldata;
struct pnfs_layout_segment *lseg, *tmp;
+ unsigned long *bitlock = &NFS_I(data->args.inode)->flags;
pnfs_cleanup_layoutcommit(data);
/* Matched by references in pnfs_set_layoutcommit */
@@ -5959,6 +5960,11 @@
&lseg->pls_flags))
put_lseg(lseg);
}
+
+ clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
+ smp_mb__after_clear_bit();
+ wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING);
+
put_rpccred(data->cred);
kfree(data);
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 1dce12f..e6161b2 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -6602,8 +6602,6 @@
if (status)
goto out;
status = decode_secinfo(xdr, res);
- if (status)
- goto out;
out:
return status;
}
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index d0cda12..c807ab9 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -38,21 +38,15 @@
*/
#include <linux/module.h>
-#include <scsi/osd_initiator.h>
+#include <scsi/osd_ore.h>
#include "objlayout.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
-#define _LLU(x) ((unsigned long long)x)
-
-enum { BIO_MAX_PAGES_KMALLOC =
- (PAGE_SIZE - sizeof(struct bio)) / sizeof(struct bio_vec),
-};
-
struct objio_dev_ent {
struct nfs4_deviceid_node id_node;
- struct osd_dev *od;
+ struct ore_dev od;
};
static void
@@ -60,8 +54,8 @@
{
struct objio_dev_ent *de = container_of(d, struct objio_dev_ent, id_node);
- dprintk("%s: free od=%p\n", __func__, de->od);
- osduld_put_device(de->od);
+ dprintk("%s: free od=%p\n", __func__, de->od.od);
+ osduld_put_device(de->od.od);
kfree(de);
}
@@ -98,12 +92,12 @@
nfss->pnfs_curr_ld,
nfss->nfs_client,
d_id);
- de->od = od;
+ de->od.od = od;
d = nfs4_insert_deviceid_node(&de->id_node);
n = container_of(d, struct objio_dev_ent, id_node);
if (n != de) {
- dprintk("%s: Race with other n->od=%p\n", __func__, n->od);
+ dprintk("%s: Race with other n->od=%p\n", __func__, n->od.od);
objio_free_deviceid_node(&de->id_node);
de = n;
}
@@ -111,28 +105,11 @@
return de;
}
-struct caps_buffers {
- u8 caps_key[OSD_CRYPTO_KEYID_SIZE];
- u8 creds[OSD_CAP_LEN];
-};
-
struct objio_segment {
struct pnfs_layout_segment lseg;
- struct pnfs_osd_object_cred *comps;
-
- unsigned mirrors_p1;
- unsigned stripe_unit;
- unsigned group_width; /* Data stripe_units without integrity comps */
- u64 group_depth;
- unsigned group_count;
-
- unsigned max_io_size;
-
- unsigned comps_index;
- unsigned num_comps;
- /* variable length */
- struct objio_dev_ent *ods[];
+ struct ore_layout layout;
+ struct ore_components oc;
};
static inline struct objio_segment *
@@ -141,59 +118,44 @@
return container_of(lseg, struct objio_segment, lseg);
}
-struct objio_state;
-typedef ssize_t (*objio_done_fn)(struct objio_state *ios);
-
struct objio_state {
/* Generic layer */
- struct objlayout_io_state ol_state;
+ struct objlayout_io_res oir;
- struct objio_segment *layout;
-
- struct kref kref;
- objio_done_fn done;
- void *private;
-
- unsigned long length;
- unsigned numdevs; /* Actually used devs in this IO */
- /* A per-device variable array of size numdevs */
- struct _objio_per_comp {
- struct bio *bio;
- struct osd_request *or;
- unsigned long length;
- u64 offset;
- unsigned dev;
- } per_dev[];
+ bool sync;
+ /*FIXME: Support for extra_bytes at ore_get_rw_state() */
+ struct ore_io_state *ios;
};
/* Send and wait for a get_device_info of devices in the layout,
then look them up with the osd_initiator library */
-static struct objio_dev_ent *_device_lookup(struct pnfs_layout_hdr *pnfslay,
- struct objio_segment *objio_seg, unsigned comp,
- gfp_t gfp_flags)
+static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay,
+ struct objio_segment *objio_seg, unsigned c, struct nfs4_deviceid *d_id,
+ gfp_t gfp_flags)
{
struct pnfs_osd_deviceaddr *deviceaddr;
- struct nfs4_deviceid *d_id;
struct objio_dev_ent *ode;
struct osd_dev *od;
struct osd_dev_info odi;
int err;
- d_id = &objio_seg->comps[comp].oc_object_id.oid_device_id;
-
ode = _dev_list_find(NFS_SERVER(pnfslay->plh_inode), d_id);
- if (ode)
- return ode;
+ if (ode) {
+ objio_seg->oc.ods[c] = &ode->od; /* must use container_of */
+ return 0;
+ }
err = objlayout_get_deviceinfo(pnfslay, d_id, &deviceaddr, gfp_flags);
if (unlikely(err)) {
dprintk("%s: objlayout_get_deviceinfo dev(%llx:%llx) =>%d\n",
__func__, _DEVID_LO(d_id), _DEVID_HI(d_id), err);
- return ERR_PTR(err);
+ return err;
}
odi.systemid_len = deviceaddr->oda_systemid.len;
if (odi.systemid_len > sizeof(odi.systemid)) {
+ dprintk("%s: odi.systemid_len > sizeof(systemid=%zd)\n",
+ __func__, sizeof(odi.systemid));
err = -EINVAL;
goto out;
} else if (odi.systemid_len)
@@ -218,94 +180,51 @@
ode = _dev_list_add(NFS_SERVER(pnfslay->plh_inode), d_id, od,
gfp_flags);
-
+ objio_seg->oc.ods[c] = &ode->od; /* must use container_of */
+ dprintk("Adding new dev_id(%llx:%llx)\n",
+ _DEVID_LO(d_id), _DEVID_HI(d_id));
out:
- dprintk("%s: return=%d\n", __func__, err);
objlayout_put_deviceinfo(deviceaddr);
- return err ? ERR_PTR(err) : ode;
-}
-
-static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay,
- struct objio_segment *objio_seg,
- gfp_t gfp_flags)
-{
- unsigned i;
- int err;
-
- /* lookup all devices */
- for (i = 0; i < objio_seg->num_comps; i++) {
- struct objio_dev_ent *ode;
-
- ode = _device_lookup(pnfslay, objio_seg, i, gfp_flags);
- if (unlikely(IS_ERR(ode))) {
- err = PTR_ERR(ode);
- goto out;
- }
- objio_seg->ods[i] = ode;
- }
- err = 0;
-
-out:
- dprintk("%s: return=%d\n", __func__, err);
return err;
}
-static int _verify_data_map(struct pnfs_osd_layout *layout)
+static void copy_single_comp(struct ore_components *oc, unsigned c,
+ struct pnfs_osd_object_cred *src_comp)
{
- struct pnfs_osd_data_map *data_map = &layout->olo_map;
- u64 stripe_length;
- u32 group_width;
+ struct ore_comp *ocomp = &oc->comps[c];
-/* FIXME: Only raid0 for now. if not go through MDS */
- if (data_map->odm_raid_algorithm != PNFS_OSD_RAID_0) {
- printk(KERN_ERR "Only RAID_0 for now\n");
- return -ENOTSUPP;
- }
- if (0 != (data_map->odm_num_comps % (data_map->odm_mirror_cnt + 1))) {
- printk(KERN_ERR "Data Map wrong, num_comps=%u mirrors=%u\n",
- data_map->odm_num_comps, data_map->odm_mirror_cnt);
- return -EINVAL;
- }
+ WARN_ON(src_comp->oc_cap_key.cred_len > 0); /* libosd is NO_SEC only */
+ WARN_ON(src_comp->oc_cap.cred_len > sizeof(ocomp->cred));
- if (data_map->odm_group_width)
- group_width = data_map->odm_group_width;
- else
- group_width = data_map->odm_num_comps /
- (data_map->odm_mirror_cnt + 1);
+ ocomp->obj.partition = src_comp->oc_object_id.oid_partition_id;
+ ocomp->obj.id = src_comp->oc_object_id.oid_object_id;
- stripe_length = (u64)data_map->odm_stripe_unit * group_width;
- if (stripe_length >= (1ULL << 32)) {
- printk(KERN_ERR "Total Stripe length(0x%llx)"
- " >= 32bit is not supported\n", _LLU(stripe_length));
- return -ENOTSUPP;
- }
-
- if (0 != (data_map->odm_stripe_unit & ~PAGE_MASK)) {
- printk(KERN_ERR "Stripe Unit(0x%llx)"
- " must be Multples of PAGE_SIZE(0x%lx)\n",
- _LLU(data_map->odm_stripe_unit), PAGE_SIZE);
- return -ENOTSUPP;
- }
-
- return 0;
+ memcpy(ocomp->cred, src_comp->oc_cap.cred, sizeof(ocomp->cred));
}
-static void copy_single_comp(struct pnfs_osd_object_cred *cur_comp,
- struct pnfs_osd_object_cred *src_comp,
- struct caps_buffers *caps_p)
+int __alloc_objio_seg(unsigned numdevs, gfp_t gfp_flags,
+ struct objio_segment **pseg)
{
- WARN_ON(src_comp->oc_cap_key.cred_len > sizeof(caps_p->caps_key));
- WARN_ON(src_comp->oc_cap.cred_len > sizeof(caps_p->creds));
+ struct __alloc_objio_segment {
+ struct objio_segment olseg;
+ struct ore_dev *ods[numdevs];
+ struct ore_comp comps[numdevs];
+ } *aolseg;
- *cur_comp = *src_comp;
+ aolseg = kzalloc(sizeof(*aolseg), gfp_flags);
+ if (unlikely(!aolseg)) {
+ dprintk("%s: Faild allocation numdevs=%d size=%zd\n", __func__,
+ numdevs, sizeof(*aolseg));
+ return -ENOMEM;
+ }
- memcpy(caps_p->caps_key, src_comp->oc_cap_key.cred,
- sizeof(caps_p->caps_key));
- cur_comp->oc_cap_key.cred = caps_p->caps_key;
+ aolseg->olseg.oc.numdevs = numdevs;
+ aolseg->olseg.oc.single_comp = EC_MULTPLE_COMPS;
+ aolseg->olseg.oc.comps = aolseg->comps;
+ aolseg->olseg.oc.ods = aolseg->ods;
- memcpy(caps_p->creds, src_comp->oc_cap.cred,
- sizeof(caps_p->creds));
- cur_comp->oc_cap.cred = caps_p->creds;
+ *pseg = &aolseg->olseg;
+ return 0;
}
int objio_alloc_lseg(struct pnfs_layout_segment **outp,
@@ -317,59 +236,43 @@
struct objio_segment *objio_seg;
struct pnfs_osd_xdr_decode_layout_iter iter;
struct pnfs_osd_layout layout;
- struct pnfs_osd_object_cred *cur_comp, src_comp;
- struct caps_buffers *caps_p;
+ struct pnfs_osd_object_cred src_comp;
+ unsigned cur_comp;
int err;
err = pnfs_osd_xdr_decode_layout_map(&layout, &iter, xdr);
if (unlikely(err))
return err;
- err = _verify_data_map(&layout);
+ err = __alloc_objio_seg(layout.olo_num_comps, gfp_flags, &objio_seg);
if (unlikely(err))
return err;
- objio_seg = kzalloc(sizeof(*objio_seg) +
- sizeof(objio_seg->ods[0]) * layout.olo_num_comps +
- sizeof(*objio_seg->comps) * layout.olo_num_comps +
- sizeof(struct caps_buffers) * layout.olo_num_comps,
- gfp_flags);
- if (!objio_seg)
- return -ENOMEM;
+ objio_seg->layout.stripe_unit = layout.olo_map.odm_stripe_unit;
+ objio_seg->layout.group_width = layout.olo_map.odm_group_width;
+ objio_seg->layout.group_depth = layout.olo_map.odm_group_depth;
+ objio_seg->layout.mirrors_p1 = layout.olo_map.odm_mirror_cnt + 1;
+ objio_seg->layout.raid_algorithm = layout.olo_map.odm_raid_algorithm;
- objio_seg->comps = (void *)(objio_seg->ods + layout.olo_num_comps);
- cur_comp = objio_seg->comps;
- caps_p = (void *)(cur_comp + layout.olo_num_comps);
- while (pnfs_osd_xdr_decode_layout_comp(&src_comp, &iter, xdr, &err))
- copy_single_comp(cur_comp++, &src_comp, caps_p++);
+ err = ore_verify_layout(layout.olo_map.odm_num_comps,
+ &objio_seg->layout);
if (unlikely(err))
goto err;
- objio_seg->num_comps = layout.olo_num_comps;
- objio_seg->comps_index = layout.olo_comps_index;
- err = objio_devices_lookup(pnfslay, objio_seg, gfp_flags);
- if (err)
- goto err;
-
- objio_seg->mirrors_p1 = layout.olo_map.odm_mirror_cnt + 1;
- objio_seg->stripe_unit = layout.olo_map.odm_stripe_unit;
- if (layout.olo_map.odm_group_width) {
- objio_seg->group_width = layout.olo_map.odm_group_width;
- objio_seg->group_depth = layout.olo_map.odm_group_depth;
- objio_seg->group_count = layout.olo_map.odm_num_comps /
- objio_seg->mirrors_p1 /
- objio_seg->group_width;
- } else {
- objio_seg->group_width = layout.olo_map.odm_num_comps /
- objio_seg->mirrors_p1;
- objio_seg->group_depth = -1;
- objio_seg->group_count = 1;
+ objio_seg->oc.first_dev = layout.olo_comps_index;
+ cur_comp = 0;
+ while (pnfs_osd_xdr_decode_layout_comp(&src_comp, &iter, xdr, &err)) {
+ copy_single_comp(&objio_seg->oc, cur_comp, &src_comp);
+ err = objio_devices_lookup(pnfslay, objio_seg, cur_comp,
+ &src_comp.oc_object_id.oid_device_id,
+ gfp_flags);
+ if (err)
+ goto err;
+ ++cur_comp;
}
-
- /* Cache this calculation it will hit for every page */
- objio_seg->max_io_size = (BIO_MAX_PAGES_KMALLOC * PAGE_SIZE -
- objio_seg->stripe_unit) *
- objio_seg->group_width;
+ /* pnfs_osd_xdr_decode_layout_comp returns false on error */
+ if (unlikely(err))
+ goto err;
*outp = &objio_seg->lseg;
return 0;
@@ -386,43 +289,63 @@
int i;
struct objio_segment *objio_seg = OBJIO_LSEG(lseg);
- for (i = 0; i < objio_seg->num_comps; i++) {
- if (!objio_seg->ods[i])
+ for (i = 0; i < objio_seg->oc.numdevs; i++) {
+ struct ore_dev *od = objio_seg->oc.ods[i];
+ struct objio_dev_ent *ode;
+
+ if (!od)
break;
- nfs4_put_deviceid_node(&objio_seg->ods[i]->id_node);
+ ode = container_of(od, typeof(*ode), od);
+ nfs4_put_deviceid_node(&ode->id_node);
}
kfree(objio_seg);
}
-int objio_alloc_io_state(struct pnfs_layout_segment *lseg,
- struct objlayout_io_state **outp,
- gfp_t gfp_flags)
+static int
+objio_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type, bool is_reading,
+ struct pnfs_layout_segment *lseg, struct page **pages, unsigned pgbase,
+ loff_t offset, size_t count, void *rpcdata, gfp_t gfp_flags,
+ struct objio_state **outp)
{
struct objio_segment *objio_seg = OBJIO_LSEG(lseg);
- struct objio_state *ios;
- const unsigned first_size = sizeof(*ios) +
- objio_seg->num_comps * sizeof(ios->per_dev[0]);
- const unsigned sec_size = objio_seg->num_comps *
- sizeof(ios->ol_state.ioerrs[0]);
+ struct ore_io_state *ios;
+ int ret;
+ struct __alloc_objio_state {
+ struct objio_state objios;
+ struct pnfs_osd_ioerr ioerrs[objio_seg->oc.numdevs];
+ } *aos;
- ios = kzalloc(first_size + sec_size, gfp_flags);
- if (unlikely(!ios))
+ aos = kzalloc(sizeof(*aos), gfp_flags);
+ if (unlikely(!aos))
return -ENOMEM;
- ios->layout = objio_seg;
- ios->ol_state.ioerrs = ((void *)ios) + first_size;
- ios->ol_state.num_comps = objio_seg->num_comps;
+ objlayout_init_ioerrs(&aos->objios.oir, objio_seg->oc.numdevs,
+ aos->ioerrs, rpcdata, pnfs_layout_type);
- *outp = &ios->ol_state;
+ ret = ore_get_rw_state(&objio_seg->layout, &objio_seg->oc, is_reading,
+ offset, count, &ios);
+ if (unlikely(ret)) {
+ kfree(aos);
+ return ret;
+ }
+
+ ios->pages = pages;
+ ios->pgbase = pgbase;
+ ios->private = aos;
+ BUG_ON(ios->nr_pages > (pgbase + count + PAGE_SIZE - 1) >> PAGE_SHIFT);
+
+ aos->objios.sync = 0;
+ aos->objios.ios = ios;
+ *outp = &aos->objios;
return 0;
}
-void objio_free_io_state(struct objlayout_io_state *ol_state)
+void objio_free_result(struct objlayout_io_res *oir)
{
- struct objio_state *ios = container_of(ol_state, struct objio_state,
- ol_state);
+ struct objio_state *objios = container_of(oir, struct objio_state, oir);
- kfree(ios);
+ ore_put_io_state(objios->ios);
+ kfree(objios);
}
enum pnfs_osd_errno osd_pri_2_pnfs_err(enum osd_err_priority oep)
@@ -455,539 +378,152 @@
}
}
-static void _clear_bio(struct bio *bio)
+static void __on_dev_error(struct ore_io_state *ios,
+ struct ore_dev *od, unsigned dev_index, enum osd_err_priority oep,
+ u64 dev_offset, u64 dev_len)
{
- struct bio_vec *bv;
- unsigned i;
+ struct objio_state *objios = ios->private;
+ struct pnfs_osd_objid pooid;
+ struct objio_dev_ent *ode = container_of(od, typeof(*ode), od);
+ /* FIXME: what to do with more-then-one-group layouts. We need to
+ * translate from ore_io_state index to oc->comps index
+ */
+ unsigned comp = dev_index;
- __bio_for_each_segment(bv, bio, i, 0) {
- unsigned this_count = bv->bv_len;
+ pooid.oid_device_id = ode->id_node.deviceid;
+ pooid.oid_partition_id = ios->oc->comps[comp].obj.partition;
+ pooid.oid_object_id = ios->oc->comps[comp].obj.id;
- if (likely(PAGE_SIZE == this_count))
- clear_highpage(bv->bv_page);
- else
- zero_user(bv->bv_page, bv->bv_offset, this_count);
- }
-}
-
-static int _io_check(struct objio_state *ios, bool is_write)
-{
- enum osd_err_priority oep = OSD_ERR_PRI_NO_ERROR;
- int lin_ret = 0;
- int i;
-
- for (i = 0; i < ios->numdevs; i++) {
- struct osd_sense_info osi;
- struct osd_request *or = ios->per_dev[i].or;
- int ret;
-
- if (!or)
- continue;
-
- ret = osd_req_decode_sense(or, &osi);
- if (likely(!ret))
- continue;
-
- if (OSD_ERR_PRI_CLEAR_PAGES == osi.osd_err_pri) {
- /* start read offset passed endof file */
- BUG_ON(is_write);
- _clear_bio(ios->per_dev[i].bio);
- dprintk("%s: start read offset passed end of file "
- "offset=0x%llx, length=0x%lx\n", __func__,
- _LLU(ios->per_dev[i].offset),
- ios->per_dev[i].length);
-
- continue; /* we recovered */
- }
- objlayout_io_set_result(&ios->ol_state, i,
- &ios->layout->comps[i].oc_object_id,
- osd_pri_2_pnfs_err(osi.osd_err_pri),
- ios->per_dev[i].offset,
- ios->per_dev[i].length,
- is_write);
-
- if (osi.osd_err_pri >= oep) {
- oep = osi.osd_err_pri;
- lin_ret = ret;
- }
- }
-
- return lin_ret;
-}
-
-/*
- * Common IO state helpers.
- */
-static void _io_free(struct objio_state *ios)
-{
- unsigned i;
-
- for (i = 0; i < ios->numdevs; i++) {
- struct _objio_per_comp *per_dev = &ios->per_dev[i];
-
- if (per_dev->or) {
- osd_end_request(per_dev->or);
- per_dev->or = NULL;
- }
-
- if (per_dev->bio) {
- bio_put(per_dev->bio);
- per_dev->bio = NULL;
- }
- }
-}
-
-struct osd_dev *_io_od(struct objio_state *ios, unsigned dev)
-{
- unsigned min_dev = ios->layout->comps_index;
- unsigned max_dev = min_dev + ios->layout->num_comps;
-
- BUG_ON(dev < min_dev || max_dev <= dev);
- return ios->layout->ods[dev - min_dev]->od;
-}
-
-struct _striping_info {
- u64 obj_offset;
- u64 group_length;
- unsigned dev;
- unsigned unit_off;
-};
-
-static void _calc_stripe_info(struct objio_state *ios, u64 file_offset,
- struct _striping_info *si)
-{
- u32 stripe_unit = ios->layout->stripe_unit;
- u32 group_width = ios->layout->group_width;
- u64 group_depth = ios->layout->group_depth;
- u32 U = stripe_unit * group_width;
-
- u64 T = U * group_depth;
- u64 S = T * ios->layout->group_count;
- u64 M = div64_u64(file_offset, S);
-
- /*
- G = (L - (M * S)) / T
- H = (L - (M * S)) % T
- */
- u64 LmodU = file_offset - M * S;
- u32 G = div64_u64(LmodU, T);
- u64 H = LmodU - G * T;
-
- u32 N = div_u64(H, U);
-
- div_u64_rem(file_offset, stripe_unit, &si->unit_off);
- si->obj_offset = si->unit_off + (N * stripe_unit) +
- (M * group_depth * stripe_unit);
-
- /* "H - (N * U)" is just "H % U" so it's bound to u32 */
- si->dev = (u32)(H - (N * U)) / stripe_unit + G * group_width;
- si->dev *= ios->layout->mirrors_p1;
-
- si->group_length = T - H;
-}
-
-static int _add_stripe_unit(struct objio_state *ios, unsigned *cur_pg,
- unsigned pgbase, struct _objio_per_comp *per_dev, int len,
- gfp_t gfp_flags)
-{
- unsigned pg = *cur_pg;
- int cur_len = len;
- struct request_queue *q =
- osd_request_queue(_io_od(ios, per_dev->dev));
-
- if (per_dev->bio == NULL) {
- unsigned pages_in_stripe = ios->layout->group_width *
- (ios->layout->stripe_unit / PAGE_SIZE);
- unsigned bio_size = (ios->ol_state.nr_pages + pages_in_stripe) /
- ios->layout->group_width;
-
- if (BIO_MAX_PAGES_KMALLOC < bio_size)
- bio_size = BIO_MAX_PAGES_KMALLOC;
-
- per_dev->bio = bio_kmalloc(gfp_flags, bio_size);
- if (unlikely(!per_dev->bio)) {
- dprintk("Faild to allocate BIO size=%u\n", bio_size);
- return -ENOMEM;
- }
- }
-
- while (cur_len > 0) {
- unsigned pglen = min_t(unsigned, PAGE_SIZE - pgbase, cur_len);
- unsigned added_len;
-
- BUG_ON(ios->ol_state.nr_pages <= pg);
- cur_len -= pglen;
-
- added_len = bio_add_pc_page(q, per_dev->bio,
- ios->ol_state.pages[pg], pglen, pgbase);
- if (unlikely(pglen != added_len))
- return -ENOMEM;
- pgbase = 0;
- ++pg;
- }
- BUG_ON(cur_len);
-
- per_dev->length += len;
- *cur_pg = pg;
- return 0;
-}
-
-static int _prepare_one_group(struct objio_state *ios, u64 length,
- struct _striping_info *si, unsigned *last_pg,
- gfp_t gfp_flags)
-{
- unsigned stripe_unit = ios->layout->stripe_unit;
- unsigned mirrors_p1 = ios->layout->mirrors_p1;
- unsigned devs_in_group = ios->layout->group_width * mirrors_p1;
- unsigned dev = si->dev;
- unsigned first_dev = dev - (dev % devs_in_group);
- unsigned max_comp = ios->numdevs ? ios->numdevs - mirrors_p1 : 0;
- unsigned cur_pg = *last_pg;
- int ret = 0;
-
- while (length) {
- struct _objio_per_comp *per_dev = &ios->per_dev[dev - first_dev];
- unsigned cur_len, page_off = 0;
-
- if (!per_dev->length) {
- per_dev->dev = dev;
- if (dev < si->dev) {
- per_dev->offset = si->obj_offset + stripe_unit -
- si->unit_off;
- cur_len = stripe_unit;
- } else if (dev == si->dev) {
- per_dev->offset = si->obj_offset;
- cur_len = stripe_unit - si->unit_off;
- page_off = si->unit_off & ~PAGE_MASK;
- BUG_ON(page_off &&
- (page_off != ios->ol_state.pgbase));
- } else { /* dev > si->dev */
- per_dev->offset = si->obj_offset - si->unit_off;
- cur_len = stripe_unit;
- }
-
- if (max_comp < dev - first_dev)
- max_comp = dev - first_dev;
- } else {
- cur_len = stripe_unit;
- }
- if (cur_len >= length)
- cur_len = length;
-
- ret = _add_stripe_unit(ios, &cur_pg, page_off , per_dev,
- cur_len, gfp_flags);
- if (unlikely(ret))
- goto out;
-
- dev += mirrors_p1;
- dev = (dev % devs_in_group) + first_dev;
-
- length -= cur_len;
- ios->length += cur_len;
- }
-out:
- ios->numdevs = max_comp + mirrors_p1;
- *last_pg = cur_pg;
- return ret;
-}
-
-static int _io_rw_pagelist(struct objio_state *ios, gfp_t gfp_flags)
-{
- u64 length = ios->ol_state.count;
- u64 offset = ios->ol_state.offset;
- struct _striping_info si;
- unsigned last_pg = 0;
- int ret = 0;
-
- while (length) {
- _calc_stripe_info(ios, offset, &si);
-
- if (length < si.group_length)
- si.group_length = length;
-
- ret = _prepare_one_group(ios, si.group_length, &si, &last_pg, gfp_flags);
- if (unlikely(ret))
- goto out;
-
- offset += si.group_length;
- length -= si.group_length;
- }
-
-out:
- if (!ios->length)
- return ret;
-
- return 0;
-}
-
-static ssize_t _sync_done(struct objio_state *ios)
-{
- struct completion *waiting = ios->private;
-
- complete(waiting);
- return 0;
-}
-
-static void _last_io(struct kref *kref)
-{
- struct objio_state *ios = container_of(kref, struct objio_state, kref);
-
- ios->done(ios);
-}
-
-static void _done_io(struct osd_request *or, void *p)
-{
- struct objio_state *ios = p;
-
- kref_put(&ios->kref, _last_io);
-}
-
-static ssize_t _io_exec(struct objio_state *ios)
-{
- DECLARE_COMPLETION_ONSTACK(wait);
- ssize_t status = 0; /* sync status */
- unsigned i;
- objio_done_fn saved_done_fn = ios->done;
- bool sync = ios->ol_state.sync;
-
- if (sync) {
- ios->done = _sync_done;
- ios->private = &wait;
- }
-
- kref_init(&ios->kref);
-
- for (i = 0; i < ios->numdevs; i++) {
- struct osd_request *or = ios->per_dev[i].or;
-
- if (!or)
- continue;
-
- kref_get(&ios->kref);
- osd_execute_request_async(or, _done_io, ios);
- }
-
- kref_put(&ios->kref, _last_io);
-
- if (sync) {
- wait_for_completion(&wait);
- status = saved_done_fn(ios);
- }
-
- return status;
+ objlayout_io_set_result(&objios->oir, comp,
+ &pooid, osd_pri_2_pnfs_err(oep),
+ dev_offset, dev_len, !ios->reading);
}
/*
* read
*/
-static ssize_t _read_done(struct objio_state *ios)
+static void _read_done(struct ore_io_state *ios, void *private)
{
+ struct objio_state *objios = private;
ssize_t status;
- int ret = _io_check(ios, false);
+ int ret = ore_check_io(ios, &__on_dev_error);
- _io_free(ios);
+ /* FIXME: _io_free(ios) can we dealocate the libosd resources; */
if (likely(!ret))
status = ios->length;
else
status = ret;
- objlayout_read_done(&ios->ol_state, status, ios->ol_state.sync);
- return status;
+ objlayout_read_done(&objios->oir, status, objios->sync);
}
-static int _read_mirrors(struct objio_state *ios, unsigned cur_comp)
+int objio_read_pagelist(struct nfs_read_data *rdata)
{
- struct osd_request *or = NULL;
- struct _objio_per_comp *per_dev = &ios->per_dev[cur_comp];
- unsigned dev = per_dev->dev;
- struct pnfs_osd_object_cred *cred =
- &ios->layout->comps[cur_comp];
- struct osd_obj_id obj = {
- .partition = cred->oc_object_id.oid_partition_id,
- .id = cred->oc_object_id.oid_object_id,
- };
+ struct objio_state *objios;
int ret;
- or = osd_start_request(_io_od(ios, dev), GFP_KERNEL);
- if (unlikely(!or)) {
- ret = -ENOMEM;
- goto err;
- }
- per_dev->or = or;
-
- osd_req_read(or, &obj, per_dev->offset, per_dev->bio, per_dev->length);
-
- ret = osd_finalize_request(or, 0, cred->oc_cap.cred, NULL);
- if (ret) {
- dprintk("%s: Faild to osd_finalize_request() => %d\n",
- __func__, ret);
- goto err;
- }
-
- dprintk("%s:[%d] dev=%d obj=0x%llx start=0x%llx length=0x%lx\n",
- __func__, cur_comp, dev, obj.id, _LLU(per_dev->offset),
- per_dev->length);
-
-err:
- return ret;
-}
-
-static ssize_t _read_exec(struct objio_state *ios)
-{
- unsigned i;
- int ret;
-
- for (i = 0; i < ios->numdevs; i += ios->layout->mirrors_p1) {
- if (!ios->per_dev[i].length)
- continue;
- ret = _read_mirrors(ios, i);
- if (unlikely(ret))
- goto err;
- }
-
- ios->done = _read_done;
- return _io_exec(ios); /* In sync mode exec returns the io status */
-
-err:
- _io_free(ios);
- return ret;
-}
-
-ssize_t objio_read_pagelist(struct objlayout_io_state *ol_state)
-{
- struct objio_state *ios = container_of(ol_state, struct objio_state,
- ol_state);
- int ret;
-
- ret = _io_rw_pagelist(ios, GFP_KERNEL);
+ ret = objio_alloc_io_state(NFS_I(rdata->inode)->layout, true,
+ rdata->lseg, rdata->args.pages, rdata->args.pgbase,
+ rdata->args.offset, rdata->args.count, rdata,
+ GFP_KERNEL, &objios);
if (unlikely(ret))
return ret;
- return _read_exec(ios);
+ objios->ios->done = _read_done;
+ dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
+ rdata->args.offset, rdata->args.count);
+ return ore_read(objios->ios);
}
/*
* write
*/
-static ssize_t _write_done(struct objio_state *ios)
+static void _write_done(struct ore_io_state *ios, void *private)
{
+ struct objio_state *objios = private;
ssize_t status;
- int ret = _io_check(ios, true);
+ int ret = ore_check_io(ios, &__on_dev_error);
- _io_free(ios);
+ /* FIXME: _io_free(ios) can we dealocate the libosd resources; */
if (likely(!ret)) {
/* FIXME: should be based on the OSD's persistence model
* See OSD2r05 Section 4.13 Data persistence model */
- ios->ol_state.committed = NFS_FILE_SYNC;
+ objios->oir.committed = NFS_FILE_SYNC;
status = ios->length;
} else {
status = ret;
}
- objlayout_write_done(&ios->ol_state, status, ios->ol_state.sync);
- return status;
+ objlayout_write_done(&objios->oir, status, objios->sync);
}
-static int _write_mirrors(struct objio_state *ios, unsigned cur_comp)
+static struct page *__r4w_get_page(void *priv, u64 offset, bool *uptodate)
{
- struct _objio_per_comp *master_dev = &ios->per_dev[cur_comp];
- unsigned dev = ios->per_dev[cur_comp].dev;
- unsigned last_comp = cur_comp + ios->layout->mirrors_p1;
- int ret;
+ struct objio_state *objios = priv;
+ struct nfs_write_data *wdata = objios->oir.rpcdata;
+ pgoff_t index = offset / PAGE_SIZE;
+ struct page *page = find_get_page(wdata->inode->i_mapping, index);
- for (; cur_comp < last_comp; ++cur_comp, ++dev) {
- struct osd_request *or = NULL;
- struct pnfs_osd_object_cred *cred =
- &ios->layout->comps[cur_comp];
- struct osd_obj_id obj = {
- .partition = cred->oc_object_id.oid_partition_id,
- .id = cred->oc_object_id.oid_object_id,
- };
- struct _objio_per_comp *per_dev = &ios->per_dev[cur_comp];
- struct bio *bio;
-
- or = osd_start_request(_io_od(ios, dev), GFP_NOFS);
- if (unlikely(!or)) {
- ret = -ENOMEM;
- goto err;
+ if (!page) {
+ page = find_or_create_page(wdata->inode->i_mapping,
+ index, GFP_NOFS);
+ if (unlikely(!page)) {
+ dprintk("%s: grab_cache_page Failed index=0x%lx\n",
+ __func__, index);
+ return NULL;
}
- per_dev->or = or;
-
- if (per_dev != master_dev) {
- bio = bio_kmalloc(GFP_NOFS,
- master_dev->bio->bi_max_vecs);
- if (unlikely(!bio)) {
- dprintk("Faild to allocate BIO size=%u\n",
- master_dev->bio->bi_max_vecs);
- ret = -ENOMEM;
- goto err;
- }
-
- __bio_clone(bio, master_dev->bio);
- bio->bi_bdev = NULL;
- bio->bi_next = NULL;
- per_dev->bio = bio;
- per_dev->dev = dev;
- per_dev->length = master_dev->length;
- per_dev->offset = master_dev->offset;
- } else {
- bio = master_dev->bio;
- bio->bi_rw |= REQ_WRITE;
- }
-
- osd_req_write(or, &obj, per_dev->offset, bio, per_dev->length);
-
- ret = osd_finalize_request(or, 0, cred->oc_cap.cred, NULL);
- if (ret) {
- dprintk("%s: Faild to osd_finalize_request() => %d\n",
- __func__, ret);
- goto err;
- }
-
- dprintk("%s:[%d] dev=%d obj=0x%llx start=0x%llx length=0x%lx\n",
- __func__, cur_comp, dev, obj.id, _LLU(per_dev->offset),
- per_dev->length);
+ unlock_page(page);
}
-
-err:
- return ret;
+ if (PageDirty(page) || PageWriteback(page))
+ *uptodate = true;
+ else
+ *uptodate = PageUptodate(page);
+ dprintk("%s: index=0x%lx uptodate=%d\n", __func__, index, *uptodate);
+ return page;
}
-static ssize_t _write_exec(struct objio_state *ios)
+static void __r4w_put_page(void *priv, struct page *page)
{
- unsigned i;
- int ret;
-
- for (i = 0; i < ios->numdevs; i += ios->layout->mirrors_p1) {
- if (!ios->per_dev[i].length)
- continue;
- ret = _write_mirrors(ios, i);
- if (unlikely(ret))
- goto err;
- }
-
- ios->done = _write_done;
- return _io_exec(ios); /* In sync mode exec returns the io->status */
-
-err:
- _io_free(ios);
- return ret;
+ dprintk("%s: index=0x%lx\n", __func__, page->index);
+ page_cache_release(page);
+ return;
}
-ssize_t objio_write_pagelist(struct objlayout_io_state *ol_state, bool stable)
+static const struct _ore_r4w_op _r4w_op = {
+ .get_page = &__r4w_get_page,
+ .put_page = &__r4w_put_page,
+};
+
+int objio_write_pagelist(struct nfs_write_data *wdata, int how)
{
- struct objio_state *ios = container_of(ol_state, struct objio_state,
- ol_state);
+ struct objio_state *objios;
int ret;
- /* TODO: ios->stable = stable; */
- ret = _io_rw_pagelist(ios, GFP_NOFS);
+ ret = objio_alloc_io_state(NFS_I(wdata->inode)->layout, false,
+ wdata->lseg, wdata->args.pages, wdata->args.pgbase,
+ wdata->args.offset, wdata->args.count, wdata, GFP_NOFS,
+ &objios);
if (unlikely(ret))
return ret;
- return _write_exec(ios);
+ objios->sync = 0 != (how & FLUSH_SYNC);
+ objios->ios->r4w = &_r4w_op;
+
+ if (!objios->sync)
+ objios->ios->done = _write_done;
+
+ dprintk("%s: offset=0x%llx length=0x%x\n", __func__,
+ wdata->args.offset, wdata->args.count);
+ ret = ore_write(objios->ios);
+ if (unlikely(ret))
+ return ret;
+
+ if (objios->sync)
+ _write_done(objios->ios, objios);
+
+ return 0;
}
static bool objio_pg_test(struct nfs_pageio_descriptor *pgio,
@@ -997,7 +533,7 @@
return false;
return pgio->pg_count + req->wb_bytes <=
- OBJIO_LSEG(pgio->pg_lseg)->max_io_size;
+ OBJIO_LSEG(pgio->pg_lseg)->layout.max_io_length;
}
static const struct nfs_pageio_ops objio_pg_read_ops = {
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c
index 1d06f8e..72074e3 100644
--- a/fs/nfs/objlayout/objlayout.c
+++ b/fs/nfs/objlayout/objlayout.c
@@ -156,77 +156,39 @@
return end > start ? end - 1 : NFS4_MAX_UINT64;
}
-static struct objlayout_io_state *
-objlayout_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type,
- struct page **pages,
- unsigned pgbase,
- loff_t offset,
- size_t count,
- struct pnfs_layout_segment *lseg,
- void *rpcdata,
- gfp_t gfp_flags)
+void _fix_verify_io_params(struct pnfs_layout_segment *lseg,
+ struct page ***p_pages, unsigned *p_pgbase,
+ u64 offset, unsigned long count)
{
- struct objlayout_io_state *state;
u64 lseg_end_offset;
- dprintk("%s: allocating io_state\n", __func__);
- if (objio_alloc_io_state(lseg, &state, gfp_flags))
- return NULL;
-
BUG_ON(offset < lseg->pls_range.offset);
lseg_end_offset = end_offset(lseg->pls_range.offset,
lseg->pls_range.length);
BUG_ON(offset >= lseg_end_offset);
- if (offset + count > lseg_end_offset) {
- count = lseg->pls_range.length -
- (offset - lseg->pls_range.offset);
- dprintk("%s: truncated count %Zd\n", __func__, count);
+ WARN_ON(offset + count > lseg_end_offset);
+
+ if (*p_pgbase > PAGE_SIZE) {
+ dprintk("%s: pgbase(0x%x) > PAGE_SIZE\n", __func__, *p_pgbase);
+ *p_pages += *p_pgbase >> PAGE_SHIFT;
+ *p_pgbase &= ~PAGE_MASK;
}
-
- if (pgbase > PAGE_SIZE) {
- pages += pgbase >> PAGE_SHIFT;
- pgbase &= ~PAGE_MASK;
- }
-
- INIT_LIST_HEAD(&state->err_list);
- state->lseg = lseg;
- state->rpcdata = rpcdata;
- state->pages = pages;
- state->pgbase = pgbase;
- state->nr_pages = (pgbase + count + PAGE_SIZE - 1) >> PAGE_SHIFT;
- state->offset = offset;
- state->count = count;
- state->sync = 0;
-
- return state;
-}
-
-static void
-objlayout_free_io_state(struct objlayout_io_state *state)
-{
- dprintk("%s: freeing io_state\n", __func__);
- if (unlikely(!state))
- return;
-
- objio_free_io_state(state);
}
/*
* I/O done common code
*/
static void
-objlayout_iodone(struct objlayout_io_state *state)
+objlayout_iodone(struct objlayout_io_res *oir)
{
- dprintk("%s: state %p status\n", __func__, state);
-
- if (likely(state->status >= 0)) {
- objlayout_free_io_state(state);
+ if (likely(oir->status >= 0)) {
+ objio_free_result(oir);
} else {
- struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout);
+ struct objlayout *objlay = oir->objlay;
spin_lock(&objlay->lock);
objlay->delta_space_valid = OBJ_DSU_INVALID;
- list_add(&objlay->err_list, &state->err_list);
+ list_add(&objlay->err_list, &oir->err_list);
spin_unlock(&objlay->lock);
}
}
@@ -238,13 +200,13 @@
* the error for later reporting at layout-return.
*/
void
-objlayout_io_set_result(struct objlayout_io_state *state, unsigned index,
+objlayout_io_set_result(struct objlayout_io_res *oir, unsigned index,
struct pnfs_osd_objid *pooid, int osd_error,
u64 offset, u64 length, bool is_write)
{
- struct pnfs_osd_ioerr *ioerr = &state->ioerrs[index];
+ struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[index];
- BUG_ON(index >= state->num_comps);
+ BUG_ON(index >= oir->num_comps);
if (osd_error) {
ioerr->oer_component = *pooid;
ioerr->oer_comp_offset = offset;
@@ -285,21 +247,18 @@
}
void
-objlayout_read_done(struct objlayout_io_state *state, ssize_t status, bool sync)
+objlayout_read_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
{
- int eof = state->eof;
- struct nfs_read_data *rdata;
+ struct nfs_read_data *rdata = oir->rpcdata;
- state->status = status;
- dprintk("%s: Begin status=%zd eof=%d\n", __func__, status, eof);
- rdata = state->rpcdata;
- rdata->task.tk_status = status;
- if (status >= 0) {
+ oir->status = rdata->task.tk_status = status;
+ if (status >= 0)
rdata->res.count = status;
- rdata->res.eof = eof;
- }
- objlayout_iodone(state);
- /* must not use state after this point */
+ objlayout_iodone(oir);
+ /* must not use oir after this point */
+
+ dprintk("%s: Return status=%zd eof=%d sync=%d\n", __func__,
+ status, rdata->res.eof, sync);
if (sync)
pnfs_ld_read_done(rdata);
@@ -317,40 +276,36 @@
{
loff_t offset = rdata->args.offset;
size_t count = rdata->args.count;
- struct objlayout_io_state *state;
- ssize_t status = 0;
+ int err;
loff_t eof;
- dprintk("%s: Begin inode %p offset %llu count %d\n",
- __func__, rdata->inode, offset, (int)count);
-
eof = i_size_read(rdata->inode);
if (unlikely(offset + count > eof)) {
if (offset >= eof) {
- status = 0;
+ err = 0;
rdata->res.count = 0;
rdata->res.eof = 1;
+ /*FIXME: do we need to call pnfs_ld_read_done() */
goto out;
}
count = eof - offset;
}
- state = objlayout_alloc_io_state(NFS_I(rdata->inode)->layout,
- rdata->args.pages, rdata->args.pgbase,
- offset, count,
- rdata->lseg, rdata,
- GFP_KERNEL);
- if (unlikely(!state)) {
- status = -ENOMEM;
- goto out;
- }
+ rdata->res.eof = (offset + count) >= eof;
+ _fix_verify_io_params(rdata->lseg, &rdata->args.pages,
+ &rdata->args.pgbase,
+ rdata->args.offset, rdata->args.count);
- state->eof = state->offset + state->count >= eof;
+ dprintk("%s: inode(%lx) offset 0x%llx count 0x%Zx eof=%d\n",
+ __func__, rdata->inode->i_ino, offset, count, rdata->res.eof);
- status = objio_read_pagelist(state);
+ err = objio_read_pagelist(rdata);
out:
- dprintk("%s: Return status %Zd\n", __func__, status);
- rdata->pnfs_error = status;
+ if (unlikely(err)) {
+ rdata->pnfs_error = err;
+ dprintk("%s: Returned Error %d\n", __func__, err);
+ return PNFS_NOT_ATTEMPTED;
+ }
return PNFS_ATTEMPTED;
}
@@ -371,26 +326,20 @@
}
void
-objlayout_write_done(struct objlayout_io_state *state, ssize_t status,
- bool sync)
+objlayout_write_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
{
- struct nfs_write_data *wdata;
+ struct nfs_write_data *wdata = oir->rpcdata;
- dprintk("%s: Begin\n", __func__);
- wdata = state->rpcdata;
- state->status = status;
- wdata->task.tk_status = status;
+ oir->status = wdata->task.tk_status = status;
if (status >= 0) {
wdata->res.count = status;
- wdata->verf.committed = state->committed;
- dprintk("%s: Return status %d committed %d\n",
- __func__, wdata->task.tk_status,
- wdata->verf.committed);
- } else
- dprintk("%s: Return status %d\n",
- __func__, wdata->task.tk_status);
- objlayout_iodone(state);
- /* must not use state after this point */
+ wdata->verf.committed = oir->committed;
+ }
+ objlayout_iodone(oir);
+ /* must not use oir after this point */
+
+ dprintk("%s: Return status %zd committed %d sync=%d\n", __func__,
+ status, wdata->verf.committed, sync);
if (sync)
pnfs_ld_write_done(wdata);
@@ -407,30 +356,18 @@
objlayout_write_pagelist(struct nfs_write_data *wdata,
int how)
{
- struct objlayout_io_state *state;
- ssize_t status;
+ int err;
- dprintk("%s: Begin inode %p offset %llu count %u\n",
- __func__, wdata->inode, wdata->args.offset, wdata->args.count);
+ _fix_verify_io_params(wdata->lseg, &wdata->args.pages,
+ &wdata->args.pgbase,
+ wdata->args.offset, wdata->args.count);
- state = objlayout_alloc_io_state(NFS_I(wdata->inode)->layout,
- wdata->args.pages,
- wdata->args.pgbase,
- wdata->args.offset,
- wdata->args.count,
- wdata->lseg, wdata,
- GFP_NOFS);
- if (unlikely(!state)) {
- status = -ENOMEM;
- goto out;
+ err = objio_write_pagelist(wdata, how);
+ if (unlikely(err)) {
+ wdata->pnfs_error = err;
+ dprintk("%s: Returned Error %d\n", __func__, err);
+ return PNFS_NOT_ATTEMPTED;
}
-
- state->sync = how & FLUSH_SYNC;
-
- status = objio_write_pagelist(state, how & FLUSH_STABLE);
- out:
- dprintk("%s: Return status %Zd\n", __func__, status);
- wdata->pnfs_error = status;
return PNFS_ATTEMPTED;
}
@@ -537,14 +474,14 @@
static void
encode_accumulated_error(struct objlayout *objlay, __be32 *p)
{
- struct objlayout_io_state *state, *tmp;
+ struct objlayout_io_res *oir, *tmp;
struct pnfs_osd_ioerr accumulated_err = {.oer_errno = 0};
- list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) {
+ list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
unsigned i;
- for (i = 0; i < state->num_comps; i++) {
- struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i];
+ for (i = 0; i < oir->num_comps; i++) {
+ struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
if (!ioerr->oer_errno)
continue;
@@ -563,8 +500,8 @@
merge_ioerr(&accumulated_err, ioerr);
}
- list_del(&state->err_list);
- objlayout_free_io_state(state);
+ list_del(&oir->err_list);
+ objio_free_result(oir);
}
pnfs_osd_xdr_encode_ioerr(p, &accumulated_err);
@@ -576,7 +513,7 @@
const struct nfs4_layoutreturn_args *args)
{
struct objlayout *objlay = OBJLAYOUT(pnfslay);
- struct objlayout_io_state *state, *tmp;
+ struct objlayout_io_res *oir, *tmp;
__be32 *start;
dprintk("%s: Begin\n", __func__);
@@ -585,13 +522,13 @@
spin_lock(&objlay->lock);
- list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) {
+ list_for_each_entry_safe(oir, tmp, &objlay->err_list, err_list) {
__be32 *last_xdr = NULL, *p;
unsigned i;
int res = 0;
- for (i = 0; i < state->num_comps; i++) {
- struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i];
+ for (i = 0; i < oir->num_comps; i++) {
+ struct pnfs_osd_ioerr *ioerr = &oir->ioerrs[i];
if (!ioerr->oer_errno)
continue;
@@ -615,7 +552,7 @@
}
last_xdr = p;
- pnfs_osd_xdr_encode_ioerr(p, &state->ioerrs[i]);
+ pnfs_osd_xdr_encode_ioerr(p, &oir->ioerrs[i]);
}
/* TODO: use xdr_write_pages */
@@ -631,8 +568,8 @@
encode_accumulated_error(objlay, last_xdr);
goto loop_done;
}
- list_del(&state->err_list);
- objlayout_free_io_state(state);
+ list_del(&oir->err_list);
+ objio_free_result(oir);
}
loop_done:
spin_unlock(&objlay->lock);
diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h
index a8244c8..8ec3472 100644
--- a/fs/nfs/objlayout/objlayout.h
+++ b/fs/nfs/objlayout/objlayout.h
@@ -74,19 +74,11 @@
* per-I/O operation state
* embedded in objects provider io_state data structure
*/
-struct objlayout_io_state {
- struct pnfs_layout_segment *lseg;
-
- struct page **pages;
- unsigned pgbase;
- unsigned nr_pages;
- unsigned long count;
- loff_t offset;
- bool sync;
+struct objlayout_io_res {
+ struct objlayout *objlay;
void *rpcdata;
int status; /* res */
- int eof; /* res */
int committed; /* res */
/* Error reporting (layout_return) */
@@ -100,6 +92,18 @@
struct pnfs_osd_ioerr *ioerrs;
};
+static inline
+void objlayout_init_ioerrs(struct objlayout_io_res *oir, unsigned num_comps,
+ struct pnfs_osd_ioerr *ioerrs, void *rpcdata,
+ struct pnfs_layout_hdr *pnfs_layout_type)
+{
+ oir->objlay = OBJLAYOUT(pnfs_layout_type);
+ oir->rpcdata = rpcdata;
+ INIT_LIST_HEAD(&oir->err_list);
+ oir->num_comps = num_comps;
+ oir->ioerrs = ioerrs;
+}
+
/*
* Raid engine I/O API
*/
@@ -110,28 +114,24 @@
gfp_t gfp_flags);
extern void objio_free_lseg(struct pnfs_layout_segment *lseg);
-extern int objio_alloc_io_state(
- struct pnfs_layout_segment *lseg,
- struct objlayout_io_state **outp,
- gfp_t gfp_flags);
-extern void objio_free_io_state(struct objlayout_io_state *state);
+/* objio_free_result will free these @oir structs recieved from
+ * objlayout_{read,write}_done
+ */
+extern void objio_free_result(struct objlayout_io_res *oir);
-extern ssize_t objio_read_pagelist(struct objlayout_io_state *ol_state);
-extern ssize_t objio_write_pagelist(struct objlayout_io_state *ol_state,
- bool stable);
+extern int objio_read_pagelist(struct nfs_read_data *rdata);
+extern int objio_write_pagelist(struct nfs_write_data *wdata, int how);
/*
* callback API
*/
-extern void objlayout_io_set_result(struct objlayout_io_state *state,
+extern void objlayout_io_set_result(struct objlayout_io_res *oir,
unsigned index, struct pnfs_osd_objid *pooid,
int osd_error, u64 offset, u64 length, bool is_write);
static inline void
-objlayout_add_delta_space_used(struct objlayout_io_state *state, s64 space_used)
+objlayout_add_delta_space_used(struct objlayout *objlay, s64 space_used)
{
- struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout);
-
/* If one of the I/Os errored out and the delta_space_used was
* invalid we render the complete report as invalid. Protocol mandate
* the DSU be accurate or not reported.
@@ -144,9 +144,9 @@
spin_unlock(&objlay->lock);
}
-extern void objlayout_read_done(struct objlayout_io_state *state,
+extern void objlayout_read_done(struct objlayout_io_res *oir,
ssize_t status, bool sync);
-extern void objlayout_write_done(struct objlayout_io_state *state,
+extern void objlayout_write_done(struct objlayout_io_res *oir,
ssize_t status, bool sync);
extern int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay,
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index b60970c..0a5ff5c 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -41,7 +41,7 @@
/**
* nfs_create_request - Create an NFS read/write request.
- * @file: file descriptor to use
+ * @ctx: open context to use
* @inode: inode to which the request is attached
* @page: page to write
* @offset: starting offset within the page for the write
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index ee73d9a..a2478bc 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1443,17 +1443,31 @@
/* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */
data = kzalloc(sizeof(*data), GFP_NOFS);
if (!data) {
- mark_inode_dirty_sync(inode);
status = -ENOMEM;
goto out;
}
+ if (!test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags))
+ goto out_free;
+
+ if (test_and_set_bit(NFS_INO_LAYOUTCOMMITTING, &nfsi->flags)) {
+ if (!sync) {
+ status = -EAGAIN;
+ goto out_free;
+ }
+ status = wait_on_bit_lock(&nfsi->flags, NFS_INO_LAYOUTCOMMITTING,
+ nfs_wait_bit_killable, TASK_KILLABLE);
+ if (status)
+ goto out_free;
+ }
+
INIT_LIST_HEAD(&data->lseg_list);
spin_lock(&inode->i_lock);
if (!test_and_clear_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) {
+ clear_bit(NFS_INO_LAYOUTCOMMITTING, &nfsi->flags);
spin_unlock(&inode->i_lock);
- kfree(data);
- goto out;
+ wake_up_bit(&nfsi->flags, NFS_INO_LAYOUTCOMMITTING);
+ goto out_free;
}
pnfs_list_write_lseg(inode, &data->lseg_list);
@@ -1475,6 +1489,11 @@
status = nfs4_proc_layoutcommit(data, sync);
out:
+ if (status)
+ mark_inode_dirty_sync(inode);
dprintk("<-- %s status %d\n", __func__, status);
return status;
+out_free:
+ kfree(data);
+ goto out;
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 2219c88..b016b8a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1243,7 +1243,6 @@
{
struct nfs_writeargs *argp = &data->args;
struct nfs_writeres *resp = &data->res;
- struct nfs_server *server = NFS_SERVER(data->inode);
int status;
dprintk("NFS: %5u nfs_writeback_done (status %d)\n",
@@ -1277,7 +1276,7 @@
if (time_before(complain, jiffies)) {
dprintk("NFS: faulty NFS server %s:"
" (committed = %d) != (stable = %d)\n",
- server->nfs_client->cl_hostname,
+ NFS_SERVER(data->inode)->nfs_client->cl_hostname,
resp->verf->committed, argp->stable);
complain = jiffies + 300 * HZ;
}
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index dc5a1bf..52cd976 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -256,6 +256,8 @@
nfsd_serv = NULL;
nfsd_shutdown();
+ svc_rpcb_cleanup(serv);
+
printk(KERN_WARNING "nfsd: last server has exited, flushing export "
"cache\n");
nfsd_export_flush();
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 60a137b..ab2c634 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -229,6 +229,7 @@
#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */
#define NFS_INO_PNFS_COMMIT (8) /* use pnfs code for commit */
#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
+#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
static inline struct nfs_inode *NFS_I(const struct inode *inode)
{
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 492486a..3d8f9c4 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -136,6 +136,8 @@
void rpc_release_client(struct rpc_clnt *);
void rpc_task_release_client(struct rpc_task *);
+int rpcb_create_local(void);
+void rpcb_put_local(void);
int rpcb_register(u32, u32, int, unsigned short);
int rpcb_v4_register(const u32 program, const u32 version,
const struct sockaddr *address,
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index d8d5d93..35b37b1 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -413,6 +413,7 @@
/*
* Function prototypes.
*/
+void svc_rpcb_cleanup(struct svc_serv *serv);
struct svc_serv *svc_create(struct svc_program *, unsigned int,
void (*shutdown)(struct svc_serv *));
struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 4cb70dc..e50502d 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -129,6 +129,9 @@
for (i = 0; i < groups ; i++)
if (cred->uc_gids[i] != GROUP_AT(acred->group_info, i))
return 0;
+ if (groups < NFS_NGROUPS &&
+ cred->uc_gids[groups] != NOGROUP)
+ return 0;
return 1;
}
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index f588b85..8761bf8 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -114,6 +114,9 @@
static struct rpc_clnt * rpcb_local_clnt;
static struct rpc_clnt * rpcb_local_clnt4;
+DEFINE_SPINLOCK(rpcb_clnt_lock);
+unsigned int rpcb_users;
+
struct rpcbind_args {
struct rpc_xprt * r_xprt;
@@ -161,6 +164,56 @@
kfree(map);
}
+static int rpcb_get_local(void)
+{
+ int cnt;
+
+ spin_lock(&rpcb_clnt_lock);
+ if (rpcb_users)
+ rpcb_users++;
+ cnt = rpcb_users;
+ spin_unlock(&rpcb_clnt_lock);
+
+ return cnt;
+}
+
+void rpcb_put_local(void)
+{
+ struct rpc_clnt *clnt = rpcb_local_clnt;
+ struct rpc_clnt *clnt4 = rpcb_local_clnt4;
+ int shutdown;
+
+ spin_lock(&rpcb_clnt_lock);
+ if (--rpcb_users == 0) {
+ rpcb_local_clnt = NULL;
+ rpcb_local_clnt4 = NULL;
+ }
+ shutdown = !rpcb_users;
+ spin_unlock(&rpcb_clnt_lock);
+
+ if (shutdown) {
+ /*
+ * cleanup_rpcb_clnt - remove xprtsock's sysctls, unregister
+ */
+ if (clnt4)
+ rpc_shutdown_client(clnt4);
+ if (clnt)
+ rpc_shutdown_client(clnt);
+ }
+}
+
+static void rpcb_set_local(struct rpc_clnt *clnt, struct rpc_clnt *clnt4)
+{
+ /* Protected by rpcb_create_local_mutex */
+ rpcb_local_clnt = clnt;
+ rpcb_local_clnt4 = clnt4;
+ smp_wmb();
+ rpcb_users = 1;
+ dprintk("RPC: created new rpcb local clients (rpcb_local_clnt: "
+ "%p, rpcb_local_clnt4: %p)\n", rpcb_local_clnt,
+ rpcb_local_clnt4);
+}
+
/*
* Returns zero on success, otherwise a negative errno value
* is returned.
@@ -205,9 +258,7 @@
clnt4 = NULL;
}
- /* Protected by rpcb_create_local_mutex */
- rpcb_local_clnt = clnt;
- rpcb_local_clnt4 = clnt4;
+ rpcb_set_local(clnt, clnt4);
out:
return result;
@@ -259,9 +310,7 @@
clnt4 = NULL;
}
- /* Protected by rpcb_create_local_mutex */
- rpcb_local_clnt = clnt;
- rpcb_local_clnt4 = clnt4;
+ rpcb_set_local(clnt, clnt4);
out:
return result;
@@ -271,16 +320,16 @@
* Returns zero on success, otherwise a negative errno value
* is returned.
*/
-static int rpcb_create_local(void)
+int rpcb_create_local(void)
{
static DEFINE_MUTEX(rpcb_create_local_mutex);
int result = 0;
- if (rpcb_local_clnt)
+ if (rpcb_get_local())
return result;
mutex_lock(&rpcb_create_local_mutex);
- if (rpcb_local_clnt)
+ if (rpcb_get_local())
goto out;
if (rpcb_create_local_unix() != 0)
@@ -382,11 +431,6 @@
struct rpc_message msg = {
.rpc_argp = &map,
};
- int error;
-
- error = rpcb_create_local();
- if (error)
- return error;
dprintk("RPC: %sregistering (%u, %u, %d, %u) with local "
"rpcbind\n", (port ? "" : "un"),
@@ -522,11 +566,7 @@
struct rpc_message msg = {
.rpc_argp = &map,
};
- int error;
- error = rpcb_create_local();
- if (error)
- return error;
if (rpcb_local_clnt4 == NULL)
return -EPROTONOSUPPORT;
@@ -1060,15 +1100,3 @@
.version = rpcb_version,
.stats = &rpcb_stats,
};
-
-/**
- * cleanup_rpcb_clnt - remove xprtsock's sysctls, unregister
- *
- */
-void cleanup_rpcb_clnt(void)
-{
- if (rpcb_local_clnt4)
- rpc_shutdown_client(rpcb_local_clnt4);
- if (rpcb_local_clnt)
- rpc_shutdown_client(rpcb_local_clnt);
-}
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 9d08091..8ec9778 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -61,8 +61,6 @@
extern struct cache_detail unix_gid_cache;
-extern void cleanup_rpcb_clnt(void);
-
static int __init
init_sunrpc(void)
{
@@ -102,7 +100,6 @@
static void __exit
cleanup_sunrpc(void)
{
- cleanup_rpcb_clnt();
rpcauth_remove_module();
cleanup_socket_xprt();
svc_cleanup_xprt_sock();
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index dd5cc00..6e03888 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -366,6 +366,42 @@
return &serv->sv_pools[pidx % serv->sv_nrpools];
}
+static int svc_rpcb_setup(struct svc_serv *serv)
+{
+ int err;
+
+ err = rpcb_create_local();
+ if (err)
+ return err;
+
+ /* Remove any stale portmap registrations */
+ svc_unregister(serv);
+ return 0;
+}
+
+void svc_rpcb_cleanup(struct svc_serv *serv)
+{
+ svc_unregister(serv);
+ rpcb_put_local();
+}
+EXPORT_SYMBOL_GPL(svc_rpcb_cleanup);
+
+static int svc_uses_rpcbind(struct svc_serv *serv)
+{
+ struct svc_program *progp;
+ unsigned int i;
+
+ for (progp = serv->sv_program; progp; progp = progp->pg_next) {
+ for (i = 0; i < progp->pg_nvers; i++) {
+ if (progp->pg_vers[i] == NULL)
+ continue;
+ if (progp->pg_vers[i]->vs_hidden == 0)
+ return 1;
+ }
+ }
+
+ return 0;
+}
/*
* Create an RPC service
@@ -431,8 +467,15 @@
spin_lock_init(&pool->sp_lock);
}
- /* Remove any stale portmap registrations */
- svc_unregister(serv);
+ if (svc_uses_rpcbind(serv)) {
+ if (svc_rpcb_setup(serv) < 0) {
+ kfree(serv->sv_pools);
+ kfree(serv);
+ return NULL;
+ }
+ if (!serv->sv_shutdown)
+ serv->sv_shutdown = svc_rpcb_cleanup;
+ }
return serv;
}
@@ -500,7 +543,6 @@
if (svc_serv_is_pooled(serv))
svc_pool_map_put();
- svc_unregister(serv);
kfree(serv->sv_pools);
kfree(serv);
}