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ceph: add inline data to pagecache

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Request reply and cap message can contain inline data. add inline data
to the page cache if there is Fc cap.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
This commit is contained in:
Yan, Zheng
2014-11-14 21:41:55 +08:00
committed by Ilya Dryomov
parent fb01d1f8b0
commit 31c542a199
6 changed files with 85 additions and 1 deletions
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16
fs/ceph/inode.c
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@@ -387,6 +387,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
spin_lock_init(&ci->i_ceph_lock);
ci->i_version = 0;
ci->i_inline_version = 0;
ci->i_time_warp_seq = 0;
ci->i_ceph_flags = 0;
ci->i_ordered_count = 0;
@@ -676,6 +677,7 @@ static int fill_inode(struct inode *inode,
bool wake = false;
bool queue_trunc = false;
bool new_version = false;
bool fill_inline = false;
dout("fill_inode %p ino %llx.%llx v %llu had %llu\n",
inode, ceph_vinop(inode), le64_to_cpu(info->version),
@@ -875,8 +877,22 @@ static int fill_inode(struct inode *inode,
ceph_vinop(inode));
__ceph_get_fmode(ci, cap_fmode);
}
if (iinfo->inline_version > 0 &&
iinfo->inline_version >= ci->i_inline_version) {
int cache_caps = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO;
ci->i_inline_version = iinfo->inline_version;
if (ci->i_inline_version != CEPH_INLINE_NONE &&
(le32_to_cpu(info->cap.caps) & cache_caps))
fill_inline = true;
}
spin_unlock(&ci->i_ceph_lock);
if (fill_inline)
ceph_fill_inline_data(inode, NULL,
iinfo->inline_data, iinfo->inline_len);
if (wake)
wake_up_all(&ci->i_cap_wq);