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Diffstat (limited to 'fs/nfs/pnfs.c')
-rw-r--r--fs/nfs/pnfs.c63
1 files changed, 44 insertions, 19 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 3bcd669a3152..ee723aa153a3 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -251,7 +251,7 @@ EXPORT_SYMBOL_GPL(pnfs_unregister_layoutdriver);
void
pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo)
{
- atomic_inc(&lo->plh_refcount);
+ refcount_inc(&lo->plh_refcount);
}
static struct pnfs_layout_hdr *
@@ -292,11 +292,14 @@ pnfs_detach_layout_hdr(struct pnfs_layout_hdr *lo)
void
pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
{
- struct inode *inode = lo->plh_inode;
+ struct inode *inode;
+ if (!lo)
+ return;
+ inode = lo->plh_inode;
pnfs_layoutreturn_before_put_layout_hdr(lo);
- if (atomic_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
+ if (refcount_dec_and_lock(&lo->plh_refcount, &inode->i_lock)) {
if (!list_empty(&lo->plh_segs))
WARN_ONCE(1, "NFS: BUG unfreed layout segments.\n");
pnfs_detach_layout_hdr(lo);
@@ -355,6 +358,24 @@ pnfs_clear_lseg_state(struct pnfs_layout_segment *lseg,
}
/*
+ * Update the seqid of a layout stateid
+ */
+bool nfs4_refresh_layout_stateid(nfs4_stateid *dst, struct inode *inode)
+{
+ struct pnfs_layout_hdr *lo;
+ bool ret = false;
+
+ spin_lock(&inode->i_lock);
+ lo = NFS_I(inode)->layout;
+ if (lo && nfs4_stateid_match_other(dst, &lo->plh_stateid)) {
+ dst->seqid = lo->plh_stateid.seqid;
+ ret = true;
+ }
+ spin_unlock(&inode->i_lock);
+ return ret;
+}
+
+/*
* Mark a pnfs_layout_hdr and all associated layout segments as invalid
*
* In order to continue using the pnfs_layout_hdr, a full recovery
@@ -395,14 +416,14 @@ pnfs_layout_set_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit)
{
lo->plh_retry_timestamp = jiffies;
if (!test_and_set_bit(fail_bit, &lo->plh_flags))
- atomic_inc(&lo->plh_refcount);
+ refcount_inc(&lo->plh_refcount);
}
static void
pnfs_layout_clear_fail_bit(struct pnfs_layout_hdr *lo, int fail_bit)
{
if (test_and_clear_bit(fail_bit, &lo->plh_flags))
- atomic_dec(&lo->plh_refcount);
+ refcount_dec(&lo->plh_refcount);
}
static void
@@ -450,7 +471,7 @@ pnfs_init_lseg(struct pnfs_layout_hdr *lo, struct pnfs_layout_segment *lseg,
{
INIT_LIST_HEAD(&lseg->pls_list);
INIT_LIST_HEAD(&lseg->pls_lc_list);
- atomic_set(&lseg->pls_refcount, 1);
+ refcount_set(&lseg->pls_refcount, 1);
set_bit(NFS_LSEG_VALID, &lseg->pls_flags);
lseg->pls_layout = lo;
lseg->pls_range = *range;
@@ -472,7 +493,7 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
WARN_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
list_del_init(&lseg->pls_list);
/* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */
- atomic_dec(&lo->plh_refcount);
+ refcount_dec(&lo->plh_refcount);
if (test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags))
return;
if (list_empty(&lo->plh_segs) &&
@@ -507,13 +528,13 @@ pnfs_put_lseg(struct pnfs_layout_segment *lseg)
return;
dprintk("%s: lseg %p ref %d valid %d\n", __func__, lseg,
- atomic_read(&lseg->pls_refcount),
+ refcount_read(&lseg->pls_refcount),
test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
lo = lseg->pls_layout;
inode = lo->plh_inode;
- if (atomic_dec_and_lock(&lseg->pls_refcount, &inode->i_lock)) {
+ if (refcount_dec_and_lock(&lseg->pls_refcount, &inode->i_lock)) {
if (test_bit(NFS_LSEG_VALID, &lseg->pls_flags)) {
spin_unlock(&inode->i_lock);
return;
@@ -551,7 +572,7 @@ pnfs_lseg_range_contained(const struct pnfs_layout_range *l1,
static bool pnfs_lseg_dec_and_remove_zero(struct pnfs_layout_segment *lseg,
struct list_head *tmp_list)
{
- if (!atomic_dec_and_test(&lseg->pls_refcount))
+ if (!refcount_dec_and_test(&lseg->pls_refcount))
return false;
pnfs_layout_remove_lseg(lseg->pls_layout, lseg);
list_add(&lseg->pls_list, tmp_list);
@@ -570,7 +591,7 @@ static int mark_lseg_invalid(struct pnfs_layout_segment *lseg,
* outstanding io is finished.
*/
dprintk("%s: lseg %p ref %d\n", __func__, lseg,
- atomic_read(&lseg->pls_refcount));
+ refcount_read(&lseg->pls_refcount));
if (pnfs_lseg_dec_and_remove_zero(lseg, tmp_list))
rv = 1;
}
@@ -637,7 +658,7 @@ pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
return 0;
list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list)
if (pnfs_match_lseg_recall(lseg, recall_range, seq)) {
- dprintk("%s: freeing lseg %p iomode %d seq %u"
+ dprintk("%s: freeing lseg %p iomode %d seq %u "
"offset %llu length %llu\n", __func__,
lseg, lseg->pls_range.iomode, lseg->pls_seq,
lseg->pls_range.offset, lseg->pls_range.length);
@@ -1223,10 +1244,12 @@ retry:
spin_lock(&ino->i_lock);
lo = nfsi->layout;
if (!lo || !pnfs_layout_is_valid(lo) ||
- test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags))
+ test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) {
+ lo = NULL;
goto out_noroc;
+ }
+ pnfs_get_layout_hdr(lo);
if (test_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags)) {
- pnfs_get_layout_hdr(lo);
spin_unlock(&ino->i_lock);
wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN,
TASK_UNINTERRUPTIBLE);
@@ -1294,10 +1317,12 @@ out_noroc:
struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld;
if (ld->prepare_layoutreturn)
ld->prepare_layoutreturn(args);
+ pnfs_put_layout_hdr(lo);
return true;
}
if (layoutreturn)
pnfs_send_layoutreturn(lo, &stateid, iomode, true);
+ pnfs_put_layout_hdr(lo);
return false;
}
@@ -1451,7 +1476,7 @@ alloc_init_layout_hdr(struct inode *ino,
lo = pnfs_alloc_layout_hdr(ino, gfp_flags);
if (!lo)
return NULL;
- atomic_set(&lo->plh_refcount, 1);
+ refcount_set(&lo->plh_refcount, 1);
INIT_LIST_HEAD(&lo->plh_layouts);
INIT_LIST_HEAD(&lo->plh_segs);
INIT_LIST_HEAD(&lo->plh_return_segs);
@@ -1513,7 +1538,7 @@ pnfs_lseg_range_match(const struct pnfs_layout_range *ls_range,
if ((range->iomode == IOMODE_RW &&
ls_range->iomode != IOMODE_RW) ||
(range->iomode != ls_range->iomode &&
- strict_iomode == true) ||
+ strict_iomode) ||
!pnfs_lseg_range_intersecting(ls_range, range))
return 0;
@@ -1546,7 +1571,7 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo,
}
dprintk("%s:Return lseg %p ref %d\n",
- __func__, ret, ret ? atomic_read(&ret->pls_refcount) : 0);
+ __func__, ret, ret ? refcount_read(&ret->pls_refcount) : 0);
return ret;
}
@@ -2237,7 +2262,7 @@ pnfs_write_through_mds(struct nfs_pageio_descriptor *desc,
nfs_pageio_reset_write_mds(desc);
mirror->pg_recoalesce = 1;
}
- hdr->release(hdr);
+ hdr->completion_ops->completion(hdr);
}
static enum pnfs_try_status
@@ -2360,7 +2385,7 @@ pnfs_read_through_mds(struct nfs_pageio_descriptor *desc,
nfs_pageio_reset_read_mds(desc);
mirror->pg_recoalesce = 1;
}
- hdr->release(hdr);
+ hdr->completion_ops->completion(hdr);
}
/*
generated by cgit (git 2.34.1) at 2024-05-27 09:59:52 +0000