linux-hardened/fs/quota
Jan Kara b03f24567c quota: Don't write quota info in dquot_commit()
There's no reason to write quota info in dquot_commit(). The writing is a
relict from the old days when we didn't have dquot_acquire() and
dquot_release() and thus dquot_commit() could have created / removed quota
structures from the file. These days dquot_commit() only updates usage counters
/ limits in quota structure and thus there's no need to write quota info.

This also fixes an issue with journaling filesystem which didn't reserve
enough space in the transaction for write of quota info (it could have been
dirty at the time of dquot_commit() because of a race with other operation
changing it).

CC: stable@kernel.org
Reported-and-tested-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2011-04-01 00:23:46 +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: Don't write quota info in dquot_commit() 2011-04-01 00:23:46 +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 2010-03-05 00:20:25 +01:00
netlink.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
quota.c quota: Fix deadlock during path resolution 2011-01-12 19:14:55 +01:00
quota_tree.c quota: Use %pV and __attribute__((format (printf in __quota_error and fix fallout 2011-01-10 19:04:05 +01:00
quota_tree.h quota: Change quota error message to print out disk and function name 2010-07-21 16:05:58 +02:00
quota_v1.c quota: Change quota error message to print out disk and function name 2010-07-21 16:05:58 +02:00
quota_v2.c quota: return -ENOMEM when memory allocation fails 2011-02-24 11:42:44 +01:00
quotaio_v1.h quota: Move quota files into separate directory 2009-03-26 02:18:35 +01:00
quotaio_v2.h quota: Implement quota format with 64-bit space and inode limits 2009-12-10 15:02:54 +01:00