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VFS: Export dquot_send_warning

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Sending a message to userspace in a generic format to warn
of events (e.g. quota exceeded) in the quota subsystem is
a generically useful feature. This patch makes some minor
changes to the send_message function from dquot.c renaming
it quota_send_message, moving it to quota.c and exporting it
for use by filesystems which do not use the dquot code.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2009-09-28 12:35:17 +01:00
parent e285c10036
commit 86e931a35e
4 changed files with 114 additions and 85 deletions
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11
include/linux/quota.h
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@ -376,6 +376,17 @@ static inline unsigned int dquot_generic_flag(unsigned int flags, int type)
return flags >> _DQUOT_STATE_FLAGS;
}
#ifdef CONFIG_QUOTA_NETLINK_INTERFACE
extern void quota_send_warning(short type, unsigned int id, dev_t dev,
const char warntype);
#else
static inline void quota_send_warning(short type, unsigned int id, dev_t dev,
const char warntype)
{
return;
}
#endif /* CONFIG_QUOTA_NETLINK_INTERFACE */
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
struct mutex dqio_mutex; /* lock device while I/O in progress */