From 11d52142f67638209be43007d993dc137412aa42 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Thu, 18 Jul 2019 11:25:31 +0530 Subject: cluster/ec: Always read from good-mask There are cases where fop->mask may have fop->healing added and readv shouldn't be wound on fop->healing. To avoid this always wind readv to lock->good_mask fixes bz#1727081 Change-Id: I2226ef0229daf5ff315d51e868b980ee48060b87 Signed-off-by: Pranith Kumar K --- xlators/cluster/ec/src/ec-common.c | 3 +++ xlators/cluster/ec/src/ec-inode-write.c | 27 ++++++++++++++++++++++----- 2 files changed, 25 insertions(+), 5 deletions(-) (limited to 'xlators/cluster') diff --git a/xlators/cluster/ec/src/ec-common.c b/xlators/cluster/ec/src/ec-common.c index 1781776239e..f55c3c59651 100644 --- a/xlators/cluster/ec/src/ec-common.c +++ b/xlators/cluster/ec/src/ec-common.c @@ -654,6 +654,9 @@ ec_child_select(ec_fop_data_t *fop) * unlock should go on all subvols where lock is performed*/ if (fop->parent && !ec_internal_op(fop)) { fop->mask &= (fop->parent->mask & ~fop->parent->healing); + if (ec_is_data_fop(fop->id)) { + fop->healing |= fop->parent->healing; + } } if ((fop->mask & ~ec->xl_up) != 0) { diff --git a/xlators/cluster/ec/src/ec-inode-write.c b/xlators/cluster/ec/src/ec-inode-write.c index 561015b9bbb..ec1c5b5d85c 100644 --- a/xlators/cluster/ec/src/ec-inode-write.c +++ b/xlators/cluster/ec/src/ec-inode-write.c @@ -1973,6 +1973,20 @@ ec_get_and_merge_stripe(ec_t *ec, ec_fop_data_t *fop, ec_stripe_part_t which) return found; } +static uintptr_t +ec_get_lock_good_mask(inode_t *inode, xlator_t *xl) +{ + ec_lock_t *lock = NULL; + ec_inode_t *ictx = NULL; + LOCK(&inode->lock); + { + ictx = __ec_inode_get(inode, xl); + lock = ictx->inode_lock; + } + UNLOCK(&inode->lock); + return lock->good_mask; +} + void ec_writev_start(ec_fop_data_t *fop) { @@ -2018,9 +2032,10 @@ ec_writev_start(ec_fop_data_t *fop) err = -ENOMEM; goto failed_xdata; } - ec_readv(fop->frame, fop->xl, -1, EC_MINIMUM_MIN, - ec_writev_merge_head, NULL, fd, ec->stripe_size, - fop->offset, 0, xdata); + ec_readv(fop->frame, fop->xl, + ec_get_lock_good_mask(fop->fd->inode, fop->xl), + EC_MINIMUM_MIN, ec_writev_merge_head, NULL, fd, + ec->stripe_size, fop->offset, 0, xdata); } } else { memset(fop->vector[0].iov_base, 0, fop->head); @@ -2043,8 +2058,10 @@ ec_writev_start(ec_fop_data_t *fop) err = -ENOMEM; goto failed_xdata; } - ec_readv(fop->frame, fop->xl, -1, EC_MINIMUM_MIN, - ec_writev_merge_tail, NULL, fd, ec->stripe_size, + ec_readv(fop->frame, fop->xl, + ec_get_lock_good_mask(fop->fd->inode, fop->xl), + EC_MINIMUM_MIN, ec_writev_merge_tail, NULL, fd, + ec->stripe_size, fop->offset + fop->size - ec->stripe_size, 0, xdata); } } else { -- cgit