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From 220b95085847b5f6a9e5bee7a9519efe72600e6a Mon Sep 17 00:00:00 2001
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From: Pranith Kumar K <pkarampu@redhat.com>
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Date: Thu, 18 Jul 2019 11:25:31 +0530
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Subject: [PATCH 272/276] cluster/ec: Always read from good-mask
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There are cases where fop->mask may have fop->healing added
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and readv shouldn't be wound on fop->healing. To avoid this
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always wind readv to lock->good_mask
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Upstream-patch: https://review.gluster.org/c/glusterfs/+/23069
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fixes: bz#1730914
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Change-Id: I2226ef0229daf5ff315d51e868b980ee48060b87
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Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/177976
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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xlators/cluster/ec/src/ec-common.c | 3 +++
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xlators/cluster/ec/src/ec-inode-write.c | 27 ++++++++++++++++++++++-----
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2 files changed, 25 insertions(+), 5 deletions(-)
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diff --git a/xlators/cluster/ec/src/ec-common.c b/xlators/cluster/ec/src/ec-common.c
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index db1ff5b..28b31c9 100644
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--- a/xlators/cluster/ec/src/ec-common.c
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+++ b/xlators/cluster/ec/src/ec-common.c
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@@ -654,6 +654,9 @@ ec_child_select(ec_fop_data_t *fop)
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* unlock should go on all subvols where lock is performed*/
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if (fop->parent && !ec_internal_op(fop)) {
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fop->mask &= (fop->parent->mask & ~fop->parent->healing);
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+ if (ec_is_data_fop(fop->id)) {
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+ fop->healing |= fop->parent->healing;
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+ }
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}
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if ((fop->mask & ~ec->xl_up) != 0) {
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diff --git a/xlators/cluster/ec/src/ec-inode-write.c b/xlators/cluster/ec/src/ec-inode-write.c
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index a45e6d6..4f35b6d 100644
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--- a/xlators/cluster/ec/src/ec-inode-write.c
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+++ b/xlators/cluster/ec/src/ec-inode-write.c
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@@ -1977,6 +1977,20 @@ ec_get_and_merge_stripe(ec_t *ec, ec_fop_data_t *fop, ec_stripe_part_t which)
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return found;
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}
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+static uintptr_t
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+ec_get_lock_good_mask(inode_t *inode, xlator_t *xl)
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+{
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+ ec_lock_t *lock = NULL;
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+ ec_inode_t *ictx = NULL;
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+ LOCK(&inode->lock);
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+ {
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+ ictx = __ec_inode_get(inode, xl);
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+ lock = ictx->inode_lock;
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+ }
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+ UNLOCK(&inode->lock);
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+ return lock->good_mask;
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+}
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+
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void
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ec_writev_start(ec_fop_data_t *fop)
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{
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@@ -2022,9 +2036,10 @@ ec_writev_start(ec_fop_data_t *fop)
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err = -ENOMEM;
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goto failed_xdata;
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}
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- ec_readv(fop->frame, fop->xl, -1, EC_MINIMUM_MIN,
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- ec_writev_merge_head, NULL, fd, ec->stripe_size,
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- fop->offset, 0, xdata);
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+ ec_readv(fop->frame, fop->xl,
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+ ec_get_lock_good_mask(fop->fd->inode, fop->xl),
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+ EC_MINIMUM_MIN, ec_writev_merge_head, NULL, fd,
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+ ec->stripe_size, fop->offset, 0, xdata);
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}
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} else {
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memset(fop->vector[0].iov_base, 0, fop->head);
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@@ -2047,8 +2062,10 @@ ec_writev_start(ec_fop_data_t *fop)
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err = -ENOMEM;
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goto failed_xdata;
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}
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- ec_readv(fop->frame, fop->xl, -1, EC_MINIMUM_MIN,
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- ec_writev_merge_tail, NULL, fd, ec->stripe_size,
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+ ec_readv(fop->frame, fop->xl,
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+ ec_get_lock_good_mask(fop->fd->inode, fop->xl),
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+ EC_MINIMUM_MIN, ec_writev_merge_tail, NULL, fd,
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+ ec->stripe_size,
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fop->offset + fop->size - ec->stripe_size, 0, xdata);
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}
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} else {
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--
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1.8.3.1
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