From: wang di <di.w...@intel.com> Because the inode and its connected dentries will be cleared out of the cache after migration, the inode needs to be locked during the migration.
Signed-off-by: wang di <di.w...@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4712 Reviewed-on: http://review.whamcloud.com/9689 Reviewed-by: Lai Siyao <lai.si...@intel.com> Reviewed-by: Fan Yong <fan.y...@intel.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- drivers/staging/lustre/lustre/llite/file.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index d8761b8..5d4d17f 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2802,11 +2802,15 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx, qstr.name = name; qstr.len = namelen; dchild = d_lookup(file_dentry(file), &qstr); - if (dchild && dchild->d_inode) { + if (dchild) { op_data->op_fid3 = *ll_inode2fid(dchild->d_inode); if (dchild->d_inode) { child_inode = igrab(dchild->d_inode); - ll_invalidate_aliases(child_inode); + if (child_inode) { + inode_lock(child_inode); + op_data->op_fid3 = *ll_inode2fid(child_inode); + ll_invalidate_aliases(child_inode); + } } dput(dchild); } else { @@ -2847,6 +2851,7 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx, out_free: if (child_inode) { clear_nlink(child_inode); + inode_unlock(child_inode); iput(child_inode); } -- 1.7.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
