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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-10-08 08:28:26 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-10-08 08:28:26 -0300
commitf19866e5cb04f8f007cb422132ea4611cdacc8e3 (patch)
treeee8d9b12a8ec6335ed76b3c58ba0f3e1fea7616e /fs/nfs
parenta700f2d8e79ff80041078f160fe1edccf89b0c66 (diff)
Linux-libre 4.2.3-gnupck-4.2.3-gnu
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c5
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c7
-rw-r--r--fs/nfs/inode.c15
-rw-r--r--fs/nfs/internal.h15
-rw-r--r--fs/nfs/nfs4proc.c22
-rw-r--r--fs/nfs/pagelist.c4
-rw-r--r--fs/nfs/pnfs_nfs.c38
-rw-r--r--fs/nfs/write.c29
8 files changed, 90 insertions, 45 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index b3289d701..14e3b1e1b 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1199,6 +1199,11 @@ static int ff_layout_write_done_cb(struct rpc_task *task,
hdr->res.verf->committed == NFS_DATA_SYNC)
ff_layout_set_layoutcommit(hdr);
+ /* zero out fattr since we don't care DS attr at all */
+ hdr->fattr.valid = 0;
+ if (task->tk_status >= 0)
+ nfs_writeback_update_inode(hdr);
+
return 0;
}
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index f13e1969e..b28fa4cbe 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -500,16 +500,19 @@ int ff_layout_encode_ds_ioerr(struct nfs4_flexfile_layout *flo,
range->offset, range->length))
continue;
/* offset(8) + length(8) + stateid(NFS4_STATEID_SIZE)
- * + deviceid(NFS4_DEVICEID4_SIZE) + status(4) + opnum(4)
+ * + array length + deviceid(NFS4_DEVICEID4_SIZE)
+ * + status(4) + opnum(4)
*/
p = xdr_reserve_space(xdr,
- 24 + NFS4_STATEID_SIZE + NFS4_DEVICEID4_SIZE);
+ 28 + NFS4_STATEID_SIZE + NFS4_DEVICEID4_SIZE);
if (unlikely(!p))
return -ENOBUFS;
p = xdr_encode_hyper(p, err->offset);
p = xdr_encode_hyper(p, err->length);
p = xdr_encode_opaque_fixed(p, &err->stateid,
NFS4_STATEID_SIZE);
+ /* Encode 1 error */
+ *p++ = cpu_to_be32(1);
p = xdr_encode_opaque_fixed(p, &err->deviceid,
NFS4_DEVICEID4_SIZE);
*p++ = cpu_to_be32(err->status);
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 0adc7d245..4afbe1332 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1273,13 +1273,6 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
return 0;
}
-static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fattr *fattr)
-{
- if (!(fattr->valid & NFS_ATTR_FATTR_CTIME))
- return 0;
- return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
-}
-
static atomic_long_t nfs_attr_generation_counter;
static unsigned long nfs_read_attr_generation_counter(void)
@@ -1428,7 +1421,6 @@ static int nfs_inode_attrs_need_update(const struct inode *inode, const struct n
const struct nfs_inode *nfsi = NFS_I(inode);
return ((long)fattr->gencount - (long)nfsi->attr_gencount) > 0 ||
- nfs_ctime_need_update(inode, fattr) ||
((long)nfsi->attr_gencount - (long)nfs_read_attr_generation_counter() > 0);
}
@@ -1491,6 +1483,13 @@ static int nfs_post_op_update_inode_locked(struct inode *inode, struct nfs_fattr
{
unsigned long invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
+ /*
+ * Don't revalidate the pagecache if we hold a delegation, but do
+ * force an attribute update
+ */
+ if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
+ invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_FORCED;
+
if (S_ISDIR(inode->i_mode))
invalid |= NFS_INO_INVALID_DATA;
nfs_set_cache_invalid(inode, invalid);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 9b372b845..1dad18105 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -490,6 +490,9 @@ void nfs_retry_commit(struct list_head *page_list,
void nfs_commitdata_release(struct nfs_commit_data *data);
void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
struct nfs_commit_info *cinfo);
+void nfs_request_add_commit_list_locked(struct nfs_page *req,
+ struct list_head *dst,
+ struct nfs_commit_info *cinfo);
void nfs_request_remove_commit_list(struct nfs_page *req,
struct nfs_commit_info *cinfo);
void nfs_init_cinfo(struct nfs_commit_info *cinfo,
@@ -623,13 +626,15 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize)
* Record the page as unstable and mark its inode as dirty.
*/
static inline
-void nfs_mark_page_unstable(struct page *page)
+void nfs_mark_page_unstable(struct page *page, struct nfs_commit_info *cinfo)
{
- struct inode *inode = page_file_mapping(page)->host;
+ if (!cinfo->dreq) {
+ struct inode *inode = page_file_mapping(page)->host;
- inc_zone_page_state(page, NR_UNSTABLE_NFS);
- inc_wb_stat(&inode_to_bdi(inode)->wb, WB_RECLAIMABLE);
- __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ inc_zone_page_state(page, NR_UNSTABLE_NFS);
+ inc_wb_stat(&inode_to_bdi(inode)->wb, WB_RECLAIMABLE);
+ __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+ }
}
/*
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3acb1eb72..73c8204ad 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1156,6 +1156,8 @@ static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
return 0;
if ((delegation->type & fmode) != fmode)
return 0;
+ if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
+ return 0;
if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
return 0;
nfs_mark_delegation_referenced(delegation);
@@ -1220,6 +1222,7 @@ static void nfs_resync_open_stateid_locked(struct nfs4_state *state)
}
static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
+ nfs4_stateid *arg_stateid,
nfs4_stateid *stateid, fmode_t fmode)
{
clear_bit(NFS_O_RDWR_STATE, &state->flags);
@@ -1238,8 +1241,9 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
if (stateid == NULL)
return;
/* Handle races with OPEN */
- if (!nfs4_stateid_match_other(stateid, &state->open_stateid) ||
- !nfs4_stateid_is_newer(stateid, &state->open_stateid)) {
+ if (!nfs4_stateid_match_other(arg_stateid, &state->open_stateid) ||
+ (nfs4_stateid_match_other(stateid, &state->open_stateid) &&
+ !nfs4_stateid_is_newer(stateid, &state->open_stateid))) {
nfs_resync_open_stateid_locked(state);
return;
}
@@ -1248,10 +1252,12 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
nfs4_stateid_copy(&state->open_stateid, stateid);
}
-static void nfs_clear_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
+static void nfs_clear_open_stateid(struct nfs4_state *state,
+ nfs4_stateid *arg_stateid,
+ nfs4_stateid *stateid, fmode_t fmode)
{
write_seqlock(&state->seqlock);
- nfs_clear_open_stateid_locked(state, stateid, fmode);
+ nfs_clear_open_stateid_locked(state, arg_stateid, stateid, fmode);
write_sequnlock(&state->seqlock);
if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags))
nfs4_schedule_state_manager(state->owner->so_server->nfs_client);
@@ -2425,7 +2431,7 @@ static int _nfs4_do_open(struct inode *dir,
goto err_free_label;
state = ctx->state;
- if ((opendata->o_arg.open_flags & O_EXCL) &&
+ if ((opendata->o_arg.open_flags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL) &&
(opendata->o_arg.createmode != NFS4_CREATE_GUARDED)) {
nfs4_exclusive_attrset(opendata, sattr);
@@ -2684,7 +2690,8 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
goto out_release;
}
}
- nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
+ nfs_clear_open_stateid(state, &calldata->arg.stateid,
+ res_stateid, calldata->arg.fmode);
out_release:
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);
@@ -4984,7 +4991,7 @@ nfs4_init_nonuniform_client_string(struct nfs_client *clp)
return 0;
retry:
rcu_read_lock();
- len = 10 + strlen(clp->cl_ipaddr) + 1 +
+ len = 14 + strlen(clp->cl_ipaddr) + 1 +
strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)) +
1 +
strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)) +
@@ -8661,6 +8668,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
.state_renewal_ops = &nfs41_state_renewal_ops,
+ .mig_recovery_ops = &nfs41_mig_recovery_ops,
};
#endif
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 4984bbe55..7c5718ba6 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -77,8 +77,8 @@ EXPORT_SYMBOL_GPL(nfs_pgheader_init);
void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos)
{
spin_lock(&hdr->lock);
- if (pos < hdr->io_start + hdr->good_bytes) {
- set_bit(NFS_IOHDR_ERROR, &hdr->flags);
+ if (!test_and_set_bit(NFS_IOHDR_ERROR, &hdr->flags)
+ || pos < hdr->io_start + hdr->good_bytes) {
clear_bit(NFS_IOHDR_EOF, &hdr->flags);
hdr->good_bytes = pos - hdr->io_start;
hdr->error = error;
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index f37e25b63..e5c679f04 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -359,26 +359,31 @@ same_sockaddr(struct sockaddr *addr1, struct sockaddr *addr2)
return false;
}
+/*
+ * Checks if 'dsaddrs1' contains a subset of 'dsaddrs2'. If it does,
+ * declare a match.
+ */
static bool
_same_data_server_addrs_locked(const struct list_head *dsaddrs1,
const struct list_head *dsaddrs2)
{
struct nfs4_pnfs_ds_addr *da1, *da2;
-
- /* step through both lists, comparing as we go */
- for (da1 = list_first_entry(dsaddrs1, typeof(*da1), da_node),
- da2 = list_first_entry(dsaddrs2, typeof(*da2), da_node);
- da1 != NULL && da2 != NULL;
- da1 = list_entry(da1->da_node.next, typeof(*da1), da_node),
- da2 = list_entry(da2->da_node.next, typeof(*da2), da_node)) {
- if (!same_sockaddr((struct sockaddr *)&da1->da_addr,
- (struct sockaddr *)&da2->da_addr))
- return false;
+ struct sockaddr *sa1, *sa2;
+ bool match = false;
+
+ list_for_each_entry(da1, dsaddrs1, da_node) {
+ sa1 = (struct sockaddr *)&da1->da_addr;
+ match = false;
+ list_for_each_entry(da2, dsaddrs2, da_node) {
+ sa2 = (struct sockaddr *)&da2->da_addr;
+ match = same_sockaddr(sa1, sa2);
+ if (match)
+ break;
+ }
+ if (!match)
+ break;
}
- if (da1 == NULL && da2 == NULL)
- return true;
-
- return false;
+ return match;
}
/*
@@ -863,9 +868,10 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
}
set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
cinfo->ds->nwritten++;
- spin_unlock(cinfo->lock);
- nfs_request_add_commit_list(req, list, cinfo);
+ nfs_request_add_commit_list_locked(req, list, cinfo);
+ spin_unlock(cinfo->lock);
+ nfs_mark_page_unstable(req->wb_page, cinfo);
}
EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 75a35a1af..fdee9270c 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -768,6 +768,28 @@ nfs_page_search_commits_for_head_request_locked(struct nfs_inode *nfsi,
}
/**
+ * nfs_request_add_commit_list_locked - add request to a commit list
+ * @req: pointer to a struct nfs_page
+ * @dst: commit list head
+ * @cinfo: holds list lock and accounting info
+ *
+ * This sets the PG_CLEAN bit, updates the cinfo count of
+ * number of outstanding requests requiring a commit as well as
+ * the MM page stats.
+ *
+ * The caller must hold the cinfo->lock, and the nfs_page lock.
+ */
+void
+nfs_request_add_commit_list_locked(struct nfs_page *req, struct list_head *dst,
+ struct nfs_commit_info *cinfo)
+{
+ set_bit(PG_CLEAN, &req->wb_flags);
+ nfs_list_add_request(req, dst);
+ cinfo->mds->ncommit++;
+}
+EXPORT_SYMBOL_GPL(nfs_request_add_commit_list_locked);
+
+/**
* nfs_request_add_commit_list - add request to a commit list
* @req: pointer to a struct nfs_page
* @dst: commit list head
@@ -784,13 +806,10 @@ void
nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
struct nfs_commit_info *cinfo)
{
- set_bit(PG_CLEAN, &(req)->wb_flags);
spin_lock(cinfo->lock);
- nfs_list_add_request(req, dst);
- cinfo->mds->ncommit++;
+ nfs_request_add_commit_list_locked(req, dst, cinfo);
spin_unlock(cinfo->lock);
- if (!cinfo->dreq)
- nfs_mark_page_unstable(req->wb_page);
+ nfs_mark_page_unstable(req->wb_page, cinfo);
}
EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);