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authorDavid Howells <dhowells@redhat.com>2019-12-10 07:31:13 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-15 10:15:17 -0500
commitf2aedb713c284429987dc66c7aaf38decfc8da2a (patch)
tree01978da583f0b64bb524dde8825dbaeb0934c615 /fs/nfs/nfs4file.c
parente38bb238ed8ce280a217629294ba51dc217c5a2c (diff)
NFS: Add fs_context support.
Add filesystem context support to NFS, parsing the options in advance and attaching the information to struct nfs_fs_context. The highlights are: (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context. This structure represents NFS's superblock config. (*) Make use of the VFS's parsing support to split comma-separated lists (*) Pin the NFS protocol module in the nfs_fs_context. (*) Attach supplementary error information to fs_context. This has the downside that these strings must be static and can't be formatted. (*) Remove the auxiliary file_system_type structs since the information necessary can be conveyed in the nfs_fs_context struct instead. (*) Root mounts are made by duplicating the config for the requested mount so as to have the same parameters. Submounts pick up their parameters from the parent superblock. [AV -- retrans is u32, not string] [SM -- Renamed cfg to ctx in a few functions in an earlier patch] [SM -- Moved fs_context mount option parsing to an earlier patch] [SM -- Moved fs_context error logging to a later patch] [SM -- Fixed printks in nfs4_try_get_tree() and nfs4_get_referral_tree()] [SM -- Added is_remount_fc() helper] [SM -- Deferred some refactoring to a later patch] [SM -- Fixed referral mounts, which were broken in the original patch] [SM -- Fixed leak of nfs_fattr when fs_context is freed] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs4file.c')
-rw-r--r--fs/nfs/nfs4file.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 620de905cba9..be4eb720d5b6 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -7,6 +7,7 @@
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/falloc.h>
+#include <linux/mount.h>
#include <linux/nfs_fs.h>
#include "delegation.h"
#include "internal.h"