diff options
author | Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> | 2007-05-24 12:21:43 -0400 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-24 13:16:17 -0400 |
commit | c2b38989cf2b0c003a9cf57efc833ab16d33901e (patch) | |
tree | 68b2f3efedd1908ecbd2cf4578491424d71240f1 /Documentation/filesystems/directory-locking | |
parent | 8f53b6fcc49745c19bb2dd2972185ff398160162 (diff) |
Documentation: Fix up docs still talking about i_sem
.. it got changed to 'i_mutex' some time ago.
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/filesystems/directory-locking')
-rw-r--r-- | Documentation/filesystems/directory-locking | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/filesystems/directory-locking b/Documentation/filesystems/directory-locking index d7099a9266fb..ff7b611abf33 100644 --- a/Documentation/filesystems/directory-locking +++ b/Documentation/filesystems/directory-locking | |||
@@ -1,5 +1,6 @@ | |||
1 | Locking scheme used for directory operations is based on two | 1 | Locking scheme used for directory operations is based on two |
2 | kinds of locks - per-inode (->i_sem) and per-filesystem (->s_vfs_rename_sem). | 2 | kinds of locks - per-inode (->i_mutex) and per-filesystem |
3 | (->s_vfs_rename_mutex). | ||
3 | 4 | ||
4 | For our purposes all operations fall in 5 classes: | 5 | For our purposes all operations fall in 5 classes: |
5 | 6 | ||
@@ -63,7 +64,7 @@ objects - A < B iff A is an ancestor of B. | |||
63 | attempt to acquire some lock and already holds at least one lock. Let's | 64 | attempt to acquire some lock and already holds at least one lock. Let's |
64 | consider the set of contended locks. First of all, filesystem lock is | 65 | consider the set of contended locks. First of all, filesystem lock is |
65 | not contended, since any process blocked on it is not holding any locks. | 66 | not contended, since any process blocked on it is not holding any locks. |
66 | Thus all processes are blocked on ->i_sem. | 67 | Thus all processes are blocked on ->i_mutex. |
67 | 68 | ||
68 | Non-directory objects are not contended due to (3). Thus link | 69 | Non-directory objects are not contended due to (3). Thus link |
69 | creation can't be a part of deadlock - it can't be blocked on source | 70 | creation can't be a part of deadlock - it can't be blocked on source |