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dquot: cleanup inode allocation / freeing routines

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Get rid of the alloc_inode and free_inode dquot operations - they are
always called from the filesystem and if a filesystem really needs
their own (which none currently does) it can just call into it's
own routine directly.

Also get rid of the vfs_dq_alloc/vfs_dq_free wrappers and always
call the lowlevel dquot_alloc_inode / dqout_free_inode routines
directly, which now lose the number argument which is always 1.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Christoph Hellwig
2010-03-03 09:05:01 -05:00
committed by Jan Kara
parent 5dd4056db8
commit 63936ddaa1
18 changed files with 61 additions and 107 deletions
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8
Documentation/filesystems/Locking
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@@ -462,8 +462,6 @@ in sys_read() and friends.
prototypes:
int (*initialize) (struct inode *, int);
int (*drop) (struct inode *);
int (*alloc_inode) (const struct inode *, unsigned long);
int (*free_inode) (const struct inode *, unsigned long);
int (*transfer) (struct inode *, struct iattr *);
int (*write_dquot) (struct dquot *);
int (*acquire_dquot) (struct dquot *);
@@ -479,8 +477,6 @@ What filesystem should expect from the generic quota functions:
FS recursion Held locks when called
initialize: yes maybe dqonoff_sem
drop: yes -
alloc_inode: ->mark_dirty() -
free_inode: ->mark_dirty() -
transfer: yes -
write_dquot: yes dqonoff_sem or dqptr_sem
acquire_dquot: yes dqonoff_sem or dqptr_sem
@@ -491,10 +487,6 @@ write_info: yes dqonoff_sem
FS recursion means calling ->quota_read() and ->quota_write() from superblock
operations.
->alloc_inode(), ->free_inode() are called
only directly by the filesystem and do not call any fs functions only
the ->mark_dirty() operation.
More details about quota locking can be found in fs/dquot.c.
--------------------------- vm_operations_struct -----------------------------