diff options
| author | Daniel Rosenberg <drosen@google.com> | 2016-10-26 15:29:51 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:14 +0200 |
| commit | bb843f06966b3bc37cdafb33ee71ee74cc8567c9 (patch) | |
| tree | 657576c5984d5c058ff6974f75ef48bb4b396368 /include | |
| parent | 6f074d99806b7e079fcc62ed79f83646ae621b82 (diff) | |
mnt: Add filesystem private data to mount points
This starts to add private data associated directly
to mount points. The intent is to give filesystems
a sense of where they have come from, as a means of
letting a filesystem take different actions based on
this information.
Change-Id: Ie769d7b3bb2f5972afe05c1bf16cf88c91647ab2
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 3 | ||||
| -rw-r--r-- | include/linux/mount.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 7b0583da9..32076ec41 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1614,6 +1614,8 @@ struct super_operations { int (*unfreeze_fs) (struct super_block *); int (*statfs) (struct dentry *, struct kstatfs *); int (*remount_fs) (struct super_block *, int *, char *); + void *(*clone_mnt_data) (void *); + void (*copy_mnt_data) (void *, void *); void (*umount_begin) (struct super_block *); int (*show_options)(struct seq_file *, struct dentry *); @@ -1825,6 +1827,7 @@ struct file_system_type { #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ struct dentry *(*mount) (struct file_system_type *, int, const char *, void *); + void *(*alloc_mnt_data) (void); void (*kill_sb) (struct super_block *); struct module *owner; struct file_system_type * next; diff --git a/include/linux/mount.h b/include/linux/mount.h index 7ee81ba2f..244124679 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -63,6 +63,7 @@ struct vfsmount { struct dentry *mnt_root; /* root of the mounted tree */ struct super_block *mnt_sb; /* pointer to superblock */ int mnt_flags; + void *data; }; struct file; /* forward dec */ |