path: root/fs/nfs/super.c
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 13:51:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 13:51:39 -0700
commit04de788e61a576820baf03ff8accc246ca146cb3 (patch)
treece7398fd61364c78b2a353729f8a92d77d02c076 /fs/nfs/super.c
parentMerge tag 'f2fs-for-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs (diff)
parentNFS: Clean up process of marking inode stale. (diff)
Merge tag 'nfs-for-5.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust: "Highlights include: Stable fixes: - Fix a page leak in nfs_destroy_unlinked_subrequests() - Fix use-after-free issues in nfs_pageio_add_request() - Fix new mount code constant_table array definitions - finish_automount() requires us to hold 2 refs to the mount record Features: - Improve the accuracy of telldir/seekdir by using 64-bit cookies when possible. - Allow one RDMA active connection and several zombie connections to prevent blocking if the remote server is unresponsive. - Limit the size of the NFS access cache by default - Reduce the number of references to credentials that are taken by NFS - pNFS files and flexfiles drivers now support per-layout segment COMMIT lists. - Enable partial-file layout segments in the pNFS/flexfiles driver. - Add support for CB_RECALL_ANY to the pNFS flexfiles layout type - pNFS/flexfiles Report NFS4ERR_DELAY and NFS4ERR_GRACE errors from the DS using the layouterror mechanism. Bugfixes and cleanups: - SUNRPC: Fix krb5p regressions - Don't specify NFS version in "UDP not supported" error - nfsroot: set tcp as the default transport protocol - pnfs: Return valid stateids in nfs_layout_find_inode_by_stateid() - alloc_nfs_open_context() must use the file cred when available - Fix locking when dereferencing the delegation cred - Fix memory leaks in O_DIRECT when nfs_get_lock_context() fails - Various clean ups of the NFS O_DIRECT commit code - Clean up RDMA connect/disconnect - Replace zero-length arrays with C99-style flexible arrays" * tag 'nfs-for-5.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (86 commits) NFS: Clean up process of marking inode stale. SUNRPC: Don't start a timer on an already queued rpc task NFS/pnfs: Reference the layout cred in pnfs_prepare_layoutreturn() NFS/pnfs: Fix dereference of layout cred in pnfs_layoutcommit_inode() NFS: Beware when dereferencing the delegation cred NFS: Add a module parameter to set nfs_mountpoint_expiry_timeout NFS: finish_automount() requires us to hold 2 refs to the mount record NFS: Fix a few constant_table array definitions NFS: Try to join page groups before an O_DIRECT retransmission NFS: Refactor nfs_lock_and_join_requests() NFS: Reverse the submission order of requests in __nfs_pageio_add_request() NFS: Clean up nfs_lock_and_join_requests() NFS: Remove the redundant function nfs_pgio_has_mirroring() NFS: Fix memory leaks in nfs_pageio_stop_mirroring() NFS: Fix a request reference leak in nfs_direct_write_clear_reqs() NFS: Fix use-after-free issues in nfs_pageio_add_request() NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests() NFS: Fix a page leak in nfs_destroy_unlinked_subrequests() NFS: Remove unused FLUSH_SYNC support in nfs_initiate_pgio() pNFS/flexfiles: Specify the layout segment range in LAYOUTGET ...
Diffstat (limited to 'fs/nfs/super.c')
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index bb14bede6da5..59ef3b13ccca 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -176,6 +176,41 @@ void nfs_sb_deactive(struct super_block *sb)
+static int __nfs_list_for_each_server(struct list_head *head,
+ int (*fn)(struct nfs_server *, void *),
+ void *data)
+ struct nfs_server *server, *last = NULL;
+ int ret = 0;
+ rcu_read_lock();
+ list_for_each_entry_rcu(server, head, client_link) {
+ if (!nfs_sb_active(server->super))
+ continue;
+ rcu_read_unlock();
+ if (last)
+ nfs_sb_deactive(last->super);
+ last = server;
+ ret = fn(server, data);
+ if (ret)
+ goto out;
+ rcu_read_lock();
+ }
+ rcu_read_unlock();
+ if (last)
+ nfs_sb_deactive(last->super);
+ return ret;
+int nfs_client_for_each_server(struct nfs_client *clp,
+ int (*fn)(struct nfs_server *, void *),
+ void *data)
+ return __nfs_list_for_each_server(&clp->cl_superblocks, fn, data);
* Deliver file system statistics to userspace