diff options
Diffstat (limited to 'Documentation/filesystems/Locking')
-rw-r--r-- | Documentation/filesystems/Locking | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 18b9d0ca0630..06bbbed71206 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking | |||
@@ -460,13 +460,6 @@ in sys_read() and friends. | |||
460 | 460 | ||
461 | --------------------------- dquot_operations ------------------------------- | 461 | --------------------------- dquot_operations ------------------------------- |
462 | prototypes: | 462 | prototypes: |
463 | int (*initialize) (struct inode *, int); | ||
464 | int (*drop) (struct inode *); | ||
465 | int (*alloc_space) (struct inode *, qsize_t, int); | ||
466 | int (*alloc_inode) (const struct inode *, unsigned long); | ||
467 | int (*free_space) (struct inode *, qsize_t); | ||
468 | int (*free_inode) (const struct inode *, unsigned long); | ||
469 | int (*transfer) (struct inode *, struct iattr *); | ||
470 | int (*write_dquot) (struct dquot *); | 463 | int (*write_dquot) (struct dquot *); |
471 | int (*acquire_dquot) (struct dquot *); | 464 | int (*acquire_dquot) (struct dquot *); |
472 | int (*release_dquot) (struct dquot *); | 465 | int (*release_dquot) (struct dquot *); |
@@ -479,13 +472,6 @@ a proper locking wrt the filesystem and call the generic quota operations. | |||
479 | What filesystem should expect from the generic quota functions: | 472 | What filesystem should expect from the generic quota functions: |
480 | 473 | ||
481 | FS recursion Held locks when called | 474 | FS recursion Held locks when called |
482 | initialize: yes maybe dqonoff_sem | ||
483 | drop: yes - | ||
484 | alloc_space: ->mark_dirty() - | ||
485 | alloc_inode: ->mark_dirty() - | ||
486 | free_space: ->mark_dirty() - | ||
487 | free_inode: ->mark_dirty() - | ||
488 | transfer: yes - | ||
489 | write_dquot: yes dqonoff_sem or dqptr_sem | 475 | write_dquot: yes dqonoff_sem or dqptr_sem |
490 | acquire_dquot: yes dqonoff_sem or dqptr_sem | 476 | acquire_dquot: yes dqonoff_sem or dqptr_sem |
491 | release_dquot: yes dqonoff_sem or dqptr_sem | 477 | release_dquot: yes dqonoff_sem or dqptr_sem |
@@ -495,10 +481,6 @@ write_info: yes dqonoff_sem | |||
495 | FS recursion means calling ->quota_read() and ->quota_write() from superblock | 481 | FS recursion means calling ->quota_read() and ->quota_write() from superblock |
496 | operations. | 482 | operations. |
497 | 483 | ||
498 | ->alloc_space(), ->alloc_inode(), ->free_space(), ->free_inode() are called | ||
499 | only directly by the filesystem and do not call any fs functions only | ||
500 | the ->mark_dirty() operation. | ||
501 | |||
502 | More details about quota locking can be found in fs/dquot.c. | 484 | More details about quota locking can be found in fs/dquot.c. |
503 | 485 | ||
504 | --------------------------- vm_operations_struct ----------------------------- | 486 | --------------------------- vm_operations_struct ----------------------------- |