Documentation/filesystems/mount_api.rst

39  (4) Get or create a superblock and mountable root.
64 The creation and reconfiguration of a superblock is governed by a filesystem
115      superblock thereof).  This is filled in by the ->get_tree() op.  If this
126      mount superblock on an automount.
153      A place for the LSMs to hang their security data for the superblock.  The
160      The proposed s_fs_info for a new superblock, set in the superblock by
174      These will be bitwise-OR'd with s->s_iflags when a superblock is created.
184 	FS_CONTEXT_FOR_MOUNT,		New superblock for explicit mount
198 and attach it to the superblock (or whatever), provided it clears the pointer
279      Called to get or create the mountable root and superblock, using the
282      filesystem context and transfer them to the superblock it creates.
294      Called to effect reconfiguration of a superblock using information stored
296      the filesystem context and transfer them to the superblock.  The
297      superblock can be found from fc->root->d_sb.
307 building up a security context for the superblock to be mounted.  There are a
319      reference will be non-NULL if the context is being created for superblock
321      the root dentry of the superblock to be reconfigured.  It will also be
340      contents may have been transferred to a superblock and the pointer cleared
367      In the case of reconfiguration, the target superblock will be accessible
374      Called during the mount procedure to verify that the specified superblock
409      whether that be with a new superblock or sharing an existing one.  This
410      sets the superblock flags, initialises the security and calls
414      sb_flags presets the superblock flags stored therein.
424      existing superblock.  dentry provides a reference to the superblock to be
425      configured.  sb_flags and sb_flags_mask indicate which superblock flags
435      an automount point or other derived superblock.  fs_type specifies the
438      dentry's superblock also.
534      Get or create the mountable root and superblock, using the parameters in
535      the filesystem context to select/configure the superblock.  This invokes
560      existing superblock matching the criteria held in the fs_context, using
561      the test function to match them.  If no match is found, a new superblock
572 	    Only one such superblock may exist in the system.  Any further
573 	    attempt to get a new superblock gets this one (and any parameter