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vfs: Add general support to enforce project quota limits

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This patch adds support for a new quota type PRJQUOTA for project quota
enforcement. Also a new method get_projid() is added into dquot_operations
structure.

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Li Xi
2015-03-19 04:04:53 +09:00
committed by Jan Kara
parent 5ce1aca814
commit 847aac644e
4 changed files with 27 additions and 7 deletions
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6
include/uapi/linux/quota.h
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@@ -36,11 +36,12 @@
#include <linux/errno.h>
#include <linux/types.h>
#define __DQUOT_VERSION__ "dquot_6.5.2"
#define __DQUOT_VERSION__ "dquot_6.6.0"
#define MAXQUOTAS 2
#define MAXQUOTAS 3
#define USRQUOTA 0 /* element used for user quotas */
#define GRPQUOTA 1 /* element used for group quotas */
#define PRJQUOTA 2 /* element used for project quotas */
/*
* Definitions for the default names of the quotas files.
@@ -48,6 +49,7 @@
#define INITQFNAMES { \
"user", /* USRQUOTA */ \
"group", /* GRPQUOTA */ \
"project", /* PRJQUOTA */ \
"undefined", \
};