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ocfs2: Do not map blocks from local quota file on each write
authorJan Kara <jack@suse.cz>
Tue, 27 Apr 2010 22:22:30 +0000 (00:22 +0200)
committerJan Kara <jack@suse.cz>
Fri, 21 May 2010 17:30:46 +0000 (19:30 +0200)
commitf64dd44eb748438783b10b3f7a4968d2656a3c95
tree21d73e0ed7140c8a61331eacd65157cc0983a16dtree | snapshot
parentbc8e5f07392f05c47c8bdeff4f7098db440d065ccommit | diff
ocfs2: Do not map blocks from local quota file on each write

There is no need to map offset of local dquot structure to on disk block
in each quota write. It is enough to map it just once and store the physical
block number in quota structure in memory. Moreover this simplifies locking
as we do not have to take ip_alloc_sem from quota write path.

Acked-by: Joel Becker <Joel.Becker@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
fs/ocfs2/quota.h diff | blob | blame | history
fs/ocfs2/quota_global.c diff | blob | blame | history
fs/ocfs2/quota_local.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git