From 8b712cd58adfe6aeeb0be4ecc011dc35620719e7 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Tue, 7 Jul 2009 17:22:12 -0400 Subject: ocfs2: Fixup orphan scan cleanup after failed mount If the mount fails for any reason, ocfs2_dismount_volume calls ocfs2_orphan_scan_stop. It requires that ocfs2_orphan_scan_init be called to setup the mutex and work queues, but that doesn't happen if the mount has failed and we oops accessing an uninitialized work queue. This patch splits the init and startup of the orphan scan, eliminating the oops. Signed-off-by: Jeff Mahoney Signed-off-by: Joel Becker --- fs/ocfs2/journal.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/ocfs2/journal.h') diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 5432c7f79cc6..81e8abcd246e 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -145,6 +145,7 @@ static inline void ocfs2_inode_set_new(struct ocfs2_super *osb, /* Exported only for the journal struct init code in super.c. Do not call. */ void ocfs2_orphan_scan_init(struct ocfs2_super *osb); +void ocfs2_orphan_scan_start(struct ocfs2_super *osb); void ocfs2_orphan_scan_stop(struct ocfs2_super *osb); void ocfs2_orphan_scan_exit(struct ocfs2_super *osb); -- cgit v1.2.3 From 0584974a77796581eb3a64b6c5005edac4a95128 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 22 Jul 2009 13:17:21 +0200 Subject: ocfs2: Define credit counts for quota operations Numbers of needed credits for some quota operations were written as raw numbers. Create appropriate defines instead. Signed-off-by: Jan Kara Signed-off-by: Joel Becker --- fs/ocfs2/journal.h | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'fs/ocfs2/journal.h') diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 81e8abcd246e..4a4d3b55fd22 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -330,20 +330,27 @@ int ocfs2_journal_dirty(handle_t *handle, /* extended attribute block update */ #define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1 +/* Update of a single quota block */ +#define OCFS2_QUOTA_BLOCK_UPDATE_CREDITS 1 + /* global quotafile inode update, data block */ -#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) +#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + \ + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) +#define OCFS2_LOCAL_QINFO_WRITE_CREDITS OCFS2_QUOTA_BLOCK_UPDATE_CREDITS /* * The two writes below can accidentally see global info dirty due * to set_info() quotactl so make them prepared for the writes. */ /* quota data block, global info */ /* Write to local quota file */ -#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1) +#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ + OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) /* global quota data block, local quota data block, global quota inode, * global quota info */ -#define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3) +#define OCFS2_QSYNC_CREDITS (OCFS2_QINFO_WRITE_CREDITS + \ + 2 * OCFS2_QUOTA_BLOCK_UPDATE_CREDITS) static inline int ocfs2_quota_trans_credits(struct super_block *sb) { -- cgit v1.2.3 From b409d7a0ab46fe530efe52734984b4ed5d46c3eb Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 6 Aug 2009 23:29:34 +0200 Subject: ocfs2: Fix possible deadlock when extending quota file In OCFS2, allocator locks rank above transaction start. Thus we cannot extend quota file from inside a transaction less we could deadlock. We solve the problem by starting transaction not already in ocfs2_acquire_dquot() but only in ocfs2_local_read_dquot() and ocfs2_global_read_dquot() and we allocate blocks to quota files before starting the transaction. In case we crash, quota files will just have a few blocks more but that's no problem since we just use them next time we extend the quota file. Signed-off-by: Jan Kara Signed-off-by: Joel Becker --- fs/ocfs2/journal.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'fs/ocfs2/journal.h') diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h index 4a4d3b55fd22..2c3222aec622 100644 --- a/fs/ocfs2/journal.h +++ b/fs/ocfs2/journal.h @@ -363,11 +363,6 @@ static inline int ocfs2_quota_trans_credits(struct super_block *sb) return credits; } -/* Number of credits needed for removing quota structure from file */ -int ocfs2_calc_qdel_credits(struct super_block *sb, int type); -/* Number of credits needed for initialization of new quota structure */ -int ocfs2_calc_qinit_credits(struct super_block *sb, int type); - /* group extend. inode update and last group update. */ #define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1) -- cgit v1.2.3