linux-stable

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History

Jan Kara a80b12c3d0 quota: Get rid of nested I_MUTEX_QUOTA locking subclass

So far i_mutex was ranking above dqonoff_mutex and i_mutex on quota files
was special and ranking below dqonoff_mutex (and several other locks).
However there's no real need for i_mutex on quota files to be special.
IO on quota files is serialized by dqio_mutex anyway so we don't need to
take i_mutex when writing to quota files. Other places where we take i_mutex
on quota file can accomodate standard i_mutex lock ranking, we only need
to change the lock ranking to be dqonoff_mutex > i_mutex which is a matter
of changing documentation because there's no place which would enforce
ordering in the other direction.

Signed-off-by: Jan Kara <jack@suse.cz>

2012-05-15 23:34:39 +02:00

compat.c

quota: split out compat_sys_quotactl support from quota.c

2010-03-05 00:20:25 +01:00

dquot.c

quota: Get rid of nested I_MUTEX_QUOTA locking subclass

2012-05-15 23:34:39 +02:00

Kconfig

quota: Make QUOTACTL config be selected by its users

2010-10-05 12:16:37 +02:00

Makefile

quota: split out compat_sys_quotactl support from quota.c