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quota: explicitly set ->dq_op and ->s_qcop

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Only set the quota operation vectors if the filesystem actually supports
quota instead of doing it for all filesystems in alloc_super().

[Jan Kara: Export dquot_operations and vfs_quotactl_ops]

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
This commit is contained in:
Christoph Hellwig 2010-05-19 07:16:44 -04:00 • committed by Jan Kara
commit 123e9caf1e
7 changed files with 22 additions and 15 deletions
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3
fs/super.c
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@ -24,7 +24,6 @@
#include <linux/slab.h>
#include <linux/acct.h>
#include <linux/blkdev.h>
#include <linux/quotaops.h>
#include <linux/mount.h>
#include <linux/security.h>
#include <linux/writeback.h> /* for the emergency remount stuff */
@ -94,8 +93,6 @@ static struct super_block *alloc_super(struct file_system_type *type)
init_rwsem(&s->s_dquot.dqptr_sem);
init_waitqueue_head(&s->s_wait_unfrozen);
s->s_maxbytes = MAX_NON_LFS;
s->dq_op = sb_dquot_ops;
s->s_qcop = sb_quotactl_ops;
s->s_op = &default_op;
s->s_time_gran = 1000000000;
}