diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/porting | 8 | ||||
| -rw-r--r-- | Documentation/filesystems/vfs.txt | 4 |
2 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 266d2059b9b8..dfbcd1b00b0a 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting | |||
| @@ -365,8 +365,8 @@ must be done in the RCU callback. | |||
| 365 | [recommended] | 365 | [recommended] |
| 366 | vfs now tries to do path walking in "rcu-walk mode", which avoids | 366 | vfs now tries to do path walking in "rcu-walk mode", which avoids |
| 367 | atomic operations and scalability hazards on dentries and inodes (see | 367 | atomic operations and scalability hazards on dentries and inodes (see |
| 368 | Documentation/filesystems/path-walk.txt). d_hash and d_compare changes (above) | 368 | Documentation/filesystems/path-lookup.txt). d_hash and d_compare changes |
| 369 | are examples of the changes required to support this. For more complex | 369 | (above) are examples of the changes required to support this. For more complex |
| 370 | filesystem callbacks, the vfs drops out of rcu-walk mode before the fs call, so | 370 | filesystem callbacks, the vfs drops out of rcu-walk mode before the fs call, so |
| 371 | no changes are required to the filesystem. However, this is costly and loses | 371 | no changes are required to the filesystem. However, this is costly and loses |
| 372 | the benefits of rcu-walk mode. We will begin to add filesystem callbacks that | 372 | the benefits of rcu-walk mode. We will begin to add filesystem callbacks that |
| @@ -383,8 +383,8 @@ Documentation/filesystems/vfs.txt for more details. | |||
| 383 | 383 | ||
| 384 | permission and check_acl are inode permission checks that are called | 384 | permission and check_acl are inode permission checks that are called |
| 385 | on many or all directory inodes on the way down a path walk (to check for | 385 | on many or all directory inodes on the way down a path walk (to check for |
| 386 | exec permission). These must now be rcu-walk aware (flags & IPERM_RCU). See | 386 | exec permission). These must now be rcu-walk aware (flags & IPERM_FLAG_RCU). |
| 387 | Documentation/filesystems/vfs.txt for more details. | 387 | See Documentation/filesystems/vfs.txt for more details. |
| 388 | 388 | ||
| 389 | -- | 389 | -- |
| 390 | [mandatory] | 390 | [mandatory] |
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index fbb324e2bd43..cae6d27c9f5b 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt | |||
| @@ -415,8 +415,8 @@ otherwise noted. | |||
| 415 | permission: called by the VFS to check for access rights on a POSIX-like | 415 | permission: called by the VFS to check for access rights on a POSIX-like |
| 416 | filesystem. | 416 | filesystem. |
| 417 | 417 | ||
| 418 | May be called in rcu-walk mode (flags & IPERM_RCU). If in rcu-walk | 418 | May be called in rcu-walk mode (flags & IPERM_FLAG_RCU). If in rcu-walk |
| 419 | mode, the filesystem must check the permission without blocking or | 419 | mode, the filesystem must check the permission without blocking or |
| 420 | storing to the inode. | 420 | storing to the inode. |
| 421 | 421 | ||
| 422 | If a situation is encountered that rcu-walk cannot handle, return | 422 | If a situation is encountered that rcu-walk cannot handle, return |