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authorYan, Zheng <zyan@redhat.com>2016-06-15 16:29:18 +0800
committerIlya Dryomov <idryomov@gmail.com>2016-07-28 02:55:40 +0200
commit9a5530c63889ac928a45c4645ab0bc23b4fbfcb8 (patch)
tree6c3d76c198fd3b26c6fe9e5c7f922ad62cbafdc7 /fs/ceph/inode.c
parentfc8c3892f30c39f28fdb835f7c8598ac4cf5ed1e (diff)
downloadop-kernel-dev-9a5530c63889ac928a45c4645ab0bc23b4fbfcb8.zip
op-kernel-dev-9a5530c63889ac928a45c4645ab0bc23b4fbfcb8.tar.gz
ceph: wait unsafe sync writes for evicting inode
Otherwise ceph_sync_write_unsafe() may access/modify freed inode. Signed-off-by: Yan, Zheng <zyan@redhat.com>
Diffstat (limited to 'fs/ceph/inode.c')
-rw-r--r--fs/ceph/inode.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 8ca8433..6e16269 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -585,6 +585,14 @@ int ceph_drop_inode(struct inode *inode)
return 1;
}
+void ceph_evict_inode(struct inode *inode)
+{
+ /* wait unsafe sync writes */
+ ceph_sync_write_wait(inode);
+ truncate_inode_pages_final(&inode->i_data);
+ clear_inode(inode);
+}
+
static inline blkcnt_t calc_inode_blocks(u64 size)
{
return (size + (1<<9) - 1) >> 9;
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