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Diffstat (limited to 'fs/fuse/inode.c')
-rw-r--r--fs/fuse/inode.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 5b4aebf5821f..bba747520e9b 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -121,10 +121,12 @@ static void fuse_evict_inode(struct inode *inode)
}
}
-static int fuse_remount_fs(struct super_block *sb, int *flags, char *data)
+static int fuse_reconfigure(struct fs_context *fc)
{
+ struct super_block *sb = fc->root->d_sb;
+
sync_filesystem(sb);
- if (*flags & SB_MANDLOCK)
+ if (fc->sb_flags & SB_MANDLOCK)
return -EINVAL;
return 0;
@@ -475,6 +477,17 @@ static int fuse_parse_param(struct fs_context *fc, struct fs_parameter *param)
struct fuse_fs_context *ctx = fc->fs_private;
int opt;
+ if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) {
+ /*
+ * Ignore options coming from mount(MS_REMOUNT) for backward
+ * compatibility.
+ */
+ if (fc->oldapi)
+ return 0;
+
+ return invalfc(fc, "No changes allowed in reconfigure");
+ }
+
opt = fs_parse(fc, fuse_fs_parameters, param, &result);
if (opt < 0)
return opt;
@@ -817,7 +830,6 @@ static const struct super_operations fuse_super_operations = {
.evict_inode = fuse_evict_inode,
.write_inode = fuse_write_inode,
.drop_inode = generic_delete_inode,
- .remount_fs = fuse_remount_fs,
.put_super = fuse_put_super,
.umount_begin = fuse_umount_begin,
.statfs = fuse_statfs,
@@ -1296,6 +1308,7 @@ static int fuse_get_tree(struct fs_context *fc)
static const struct fs_context_operations fuse_context_ops = {
.free = fuse_free_fc,
.parse_param = fuse_parse_param,
+ .reconfigure = fuse_reconfigure,
.get_tree = fuse_get_tree,
};