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authorRajesh Joseph <rjoseph@redhat.com>2016-11-22 22:25:42 +0530
committerKaushal M <kaushal@redhat.com>2016-12-19 23:29:58 -0800
commitb2c5d8ee2fe0f8baa7641d564ad86bb815f9509c (patch)
treeb4e716816bf203925a4e7c0f079096f51e71307f /xlators/mgmt
parent9eb9a82438ccce41b2c542093b969f39ddef25c0 (diff)
gfapi: glfs_subvol_done should NOT wait for graph migration.
In graph_setup function glfs_subvol_done is called which is executed in an epoll thread. glfs_lock waits on other thread to finish graph migration. This can lead to dead lock if we consume all the epoll threads. In general any call-back function executed in epoll thread should not call any blocking call which waits on a network reply either directly or indirectly, e.g. syncop functions should not be called in these threads. As a fix we should not wait for migration in the call-back path. > Reviewed-on: http://review.gluster.org/15913 > NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> > Smoke: Gluster Build System <jenkins@build.gluster.org> > Reviewed-by: Niels de Vos <ndevos@redhat.com> > CentOS-regression: Gluster Build System <jenkins@build.gluster.org> (cherry picked from commit 17d10b42fc4041442e6cd0bfda45944edea498c6) Change-Id: If96d0689fe1b4d74631e383048cdc30b01690dc2 BUG: 1399914 Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-on: http://review.gluster.org/15976 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaushal M <kaushal@redhat.com>
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