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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits)
  split invalidate_inodes()
  fs: skip I_FREEING inodes in writeback_sb_inodes
  fs: fold invalidate_list into invalidate_inodes
  fs: do not drop inode_lock in dispose_list
  fs: inode split IO and LRU lists
  fs: switch bdev inode bdi's correctly
  fs: fix buffer invalidation in invalidate_list
  fsnotify: use dget_parent
  smbfs: use dget_parent
  exportfs: use dget_parent
  fs: use RCU read side protection in d_validate
  fs: clean up dentry lru modification
  fs: split __shrink_dcache_sb
  fs: improve DCACHE_REFERENCED usage
  fs: use percpu counter for nr_dentry and nr_dentry_unused
  fs: simplify __d_free
  fs: take dcache_lock inside __d_path
  fs: do not assign default i_ino in new_inode
  fs: introduce a per-cpu last_ino allocator
  new helper: ihold()
  ...
This commit is contained in:
Linus Torvalds
2010-10-26 17:58:44 -07:00
parent 9e5fca251f 63997e98a3
commit 426e1f5cec
118 changed files with 863 additions and 701 deletions
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31
Documentation/filesystems/Locking
View File

@@ -349,21 +349,36 @@ call this method upon the IO completion.
--------------------------- block_device_operations -----------------------
prototypes:
int (*open) (struct inode *, struct file *);
int (*release) (struct inode *, struct file *);
int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long);
int (*open) (struct block_device *, fmode_t);
int (*release) (struct gendisk *, fmode_t);
int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
int (*direct_access) (struct block_device *, sector_t, void **, unsigned long *);
int (*media_changed) (struct gendisk *);
void (*unlock_native_capacity) (struct gendisk *);
int (*revalidate_disk) (struct gendisk *);
int (*getgeo)(struct block_device *, struct hd_geometry *);
void (*swap_slot_free_notify) (struct block_device *, unsigned long);
locking rules:
BKL bd_sem
open: yes yes
release: yes yes
ioctl: yes no
BKL bd_mutex
open: no yes
release: no yes
ioctl: no no
compat_ioctl: no no
direct_access: no no
media_changed: no no
unlock_native_capacity: no no
revalidate_disk: no no
getgeo: no no
swap_slot_free_notify: no no (see below)
media_changed, unlock_native_capacity and revalidate_disk are called only from
check_disk_change().
swap_slot_free_notify is called with swap_lock and sometimes the page lock
held.
The last two are called only from check_disk_change().
--------------------------- file_operations -------------------------------
prototypes:

4
Documentation/filesystems/sharedsubtree.txt
View File

@@ -62,10 +62,10 @@ replicas continue to be exactly same.
# mount /dev/sd0 /tmp/a
#ls /tmp/a
t1 t2 t2
t1 t2 t3
#ls /mnt/a
t1 t2 t2
t1 t2 t3
Note that the mount has propagated to the mount at /mnt as well.