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userns: Convert quota netlink aka quota_send_warning

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Modify quota_send_warning to take struct kqid instead a type and
identifier pair.

When sending netlink broadcasts always convert uids and quota
identifiers into the intial user namespace.  There is as yet no way to
send a netlink broadcast message with different contents to receivers
in different namespaces, so for the time being just map all of the
identifiers into the initial user namespace which preserves the
current behavior.

Change the callers of quota_send_warning in gfs2, xfs and dquot
to generate a struct kqid to pass to quota send warning.  When
all of the user namespaces convesions are complete a struct kqid
values will be availbe without need for conversion, but a conversion
is needed now to avoid needing to convert everything at once.

Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2012-09-16 02:32:43 -07:00
parent 74a8a10378
commit 431f19744d
6 changed files with 22 additions and 15 deletions
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4
include/linux/quota.h
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@@ -511,10 +511,10 @@ static inline unsigned int dquot_generic_flag(unsigned int flags, int type)
}
#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
extern void quota_send_warning(short type, unsigned int id, dev_t dev,
extern void quota_send_warning(struct kqid qid, dev_t dev,
const char warntype);
#else
static inline void quota_send_warning(short type, unsigned int id, dev_t dev,
static inline void quota_send_warning(struct kqid qid, dev_t dev,
const char warntype)
{
return;