diff options
Diffstat (limited to 'Documentation/filesystems/porting')
| -rw-r--r-- | Documentation/filesystems/porting | 8 |
1 files changed, 4 insertions, 4 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] |
