diff options
Diffstat (limited to 'Documentation/filesystems/Locking')
| -rw-r--r-- | Documentation/filesystems/Locking | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 06bbbed71206..af1608070cd5 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking | |||
| @@ -178,7 +178,7 @@ prototypes: | |||
| 178 | locking rules: | 178 | locking rules: |
| 179 | All except set_page_dirty may block | 179 | All except set_page_dirty may block |
| 180 | 180 | ||
| 181 | BKL PageLocked(page) i_sem | 181 | BKL PageLocked(page) i_mutex |
| 182 | writepage: no yes, unlocks (see below) | 182 | writepage: no yes, unlocks (see below) |
| 183 | readpage: no yes, unlocks | 183 | readpage: no yes, unlocks |
| 184 | sync_page: no maybe | 184 | sync_page: no maybe |
| @@ -429,7 +429,7 @@ check_flags: no | |||
| 429 | implementations. If your fs is not using generic_file_llseek, you | 429 | implementations. If your fs is not using generic_file_llseek, you |
| 430 | need to acquire and release the appropriate locks in your ->llseek(). | 430 | need to acquire and release the appropriate locks in your ->llseek(). |
| 431 | For many filesystems, it is probably safe to acquire the inode | 431 | For many filesystems, it is probably safe to acquire the inode |
| 432 | semaphore. Note some filesystems (i.e. remote ones) provide no | 432 | mutex. Note some filesystems (i.e. remote ones) provide no |
| 433 | protection for i_size so you will need to use the BKL. | 433 | protection for i_size so you will need to use the BKL. |
| 434 | 434 | ||
| 435 | Note: ext2_release() was *the* source of contention on fs-intensive | 435 | Note: ext2_release() was *the* source of contention on fs-intensive |