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mds: pin inode when openning snap parent

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make sure SnapRealm not get freed before C_SR_RetryOpenParents
get executed.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng 2015-03-10 11:11:15 +08:00
parent 6e56438b01
commit b815cf61c1
1 changed files with 4 additions and 1 deletions
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5
src/mds/SnapRealm.cc
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@ -71,13 +71,16 @@ struct C_SR_RetryOpenParents : public MDSInternalContextBase {
MDSInternalContextBase* fin;
C_SR_RetryOpenParents(SnapRealm *s, snapid_t f, snapid_t l, snapid_t pl,
inodeno_t p, MDSInternalContextBase *c) :
sr(s), first(f), last(l), parent_last(pl), parent(p), fin(c) {}
sr(s), first(f), last(l), parent_last(pl), parent(p), fin(c) {
sr->inode->get(CInode::PIN_OPENINGSNAPPARENTS);
}
MDS *get_mds() { return sr->mdcache->mds; }
void finish(int r) {
if (r < 0)
sr->_remove_missing_parent(parent_last, parent, r);
if (sr->_open_parents(fin, first, last))
fin->complete(0);
sr->inode->put(CInode::PIN_OPENINGSNAPPARENTS);
}
};