diff options
author | Christoph Hellwig <hch@lst.de> | 2016-04-05 23:19:55 (GMT) |
---|---|---|
committer | Dave Chinner <david@fromorbit.com> | 2016-04-05 23:19:55 (GMT) |
commit | 253f4911f297b83745938b7f2c5649b94730b002 (patch) | |
tree | 55d475f74f3140276bc59225bfeefe4103449f19 /fs/xfs/libxfs | |
parent | f55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff) | |
download | linux-253f4911f297b83745938b7f2c5649b94730b002.tar.xz |
xfs: better xfs_trans_alloc interface
Merge xfs_trans_reserve and xfs_trans_alloc into a single function call
that returns a transaction with all the required log and block reservations,
and which allows passing transaction flags directly to avoid the cumbersome
_xfs_trans_alloc interface.
While we're at it we also get rid of the transaction type argument that has
been superflous since we stopped supporting the non-CIL logging mode. The
guts of it will be removed in another patch.
[dchinner: fixed transaction leak in error path in xfs_setattr_nonsize]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r-- | fs/xfs/libxfs/xfs_attr.c | 58 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 22 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 8 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_shared.h | 5 |
4 files changed, 28 insertions, 65 deletions
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index fa3b948..4e126f4 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -242,37 +242,21 @@ xfs_attr_set( return error; } - /* - * Start our first transaction of the day. - * - * All future transactions during this code must be "chained" off - * this one via the trans_dup() call. All transactions will contain - * the inode, and the inode will always be marked with trans_ihold(). - * Since the inode will be locked in all transactions, we must log - * the inode in every transaction to let it float upward through - * the log. - */ - args.trans = xfs_trans_alloc(mp, XFS_TRANS_ATTR_SET); + tres.tr_logres = M_RES(mp)->tr_attrsetm.tr_logres + + M_RES(mp)->tr_attrsetrt.tr_logres * args.total; + tres.tr_logcount = XFS_ATTRSET_LOG_COUNT; + tres.tr_logflags = XFS_TRANS_PERM_LOG_RES; /* * Root fork attributes can use reserved data blocks for this * operation if necessary */ - - if (rsvd) - args.trans->t_flags |= XFS_TRANS_RESERVE; - - tres.tr_logres = M_RES(mp)->tr_attrsetm.tr_logres + - M_RES(mp)->tr_attrsetrt.tr_logres * args.total; - tres.tr_logcount = XFS_ATTRSET_LOG_COUNT; - tres.tr_logflags = XFS_TRANS_PERM_LOG_RES; - error = xfs_trans_reserve(args.trans, &tres, args.total, 0); - if (error) { - xfs_trans_cancel(args.trans); + error = xfs_trans_alloc(mp, &tres, args.total, 0, + rsvd ? XFS_TRANS_RESERVE : 0, &args.trans); + if (error) return error; - } - xfs_ilock(dp, XFS_ILOCK_EXCL); + xfs_ilock(dp, XFS_ILOCK_EXCL); error = xfs_trans_reserve_quota_nblks(args.trans, dp, args.total, 0, rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES : XFS_QMOPT_RES_REGBLKS); @@ -429,31 +413,15 @@ xfs_attr_remove( return error; /* - * Start our first transaction of the day. - * - * All future transactions during this code must be "chained" off - * this one via the trans_dup() call. All transactions will contain - * the inode, and the inode will always be marked with trans_ihold(). - * Since the inode will be locked in all transactions, we must log - * the inode in every transaction to let it float upward through - * the log. - */ - args.trans = xfs_trans_alloc(mp, XFS_TRANS_ATTR_RM); - - /* * Root fork attributes can use reserved data blocks for this * operation if necessary */ - - if (flags & ATTR_ROOT) - args.trans->t_flags |= XFS_TRANS_RESERVE; - - error = xfs_trans_reserve(args.trans, &M_RES(mp)->tr_attrrm, - XFS_ATTRRM_SPACE_RES(mp), 0); - if (error) { - xfs_trans_cancel(args.trans); + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_attrrm, + XFS_ATTRRM_SPACE_RES(mp), 0, + (flags & ATTR_ROOT) ? XFS_TRANS_RESERVE : 0, + &args.trans); + if (error) return error; - } xfs_ilock(dp, XFS_ILOCK_EXCL); /* diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 041b694..e7ec8cc 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1121,15 +1121,14 @@ xfs_bmap_add_attrfork( mp = ip->i_mount; ASSERT(!XFS_NOT_DQATTACHED(mp, ip)); - tp = xfs_trans_alloc(mp, XFS_TRANS_ADDAFORK); + blks = XFS_ADDAFORK_SPACE_RES(mp); - if (rsvd) - tp->t_flags |= XFS_TRANS_RESERVE; - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_addafork, blks, 0); - if (error) { - xfs_trans_cancel(tp); + + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_addafork, blks, 0, + rsvd ? XFS_TRANS_RESERVE : 0, &tp); + if (error) return error; - } + xfs_ilock(ip, XFS_ILOCK_EXCL); error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES : @@ -6026,13 +6025,10 @@ xfs_bmap_split_extent( xfs_fsblock_t firstfsb; int error; - tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, - XFS_DIOSTRAT_SPACE_RES(mp, 0), 0); - if (error) { - xfs_trans_cancel(tp); + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, 0, &tp); + if (error) return error; - } xfs_ilock(ip, XFS_ILOCK_EXCL); xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 8a53eaa..12ca867 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -838,12 +838,10 @@ xfs_sync_sb( struct xfs_trans *tp; int error; - tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); - if (error) { - xfs_trans_cancel(tp); + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_sb, 0, 0, + XFS_TRANS_NO_WRITECOUNT, &tp); + if (error) return error; - } xfs_log_sb(tp); if (wait) diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h index 81ac870..7d4ab64 100644 --- a/fs/xfs/libxfs/xfs_shared.h +++ b/fs/xfs/libxfs/xfs_shared.h @@ -181,8 +181,9 @@ int xfs_log_calc_minimum_size(struct xfs_mount *); #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ -#define XFS_TRANS_FREEZE_PROT 0x40 /* Transaction has elevated writer - count in superblock */ +#define XFS_TRANS_NO_WRITECOUNT 0x40 /* do not elevate SB writecount */ +#define XFS_TRANS_NOFS 0x80 /* pass KM_NOFS to kmem_alloc */ + /* * Field values for xfs_trans_mod_sb. */ |