forked from Minki/linux
ceph: move ceph_osdc_{read,write}pages to ceph.ko
Since these helpers are only used by ceph.ko, move them there and rename them with _sync_ qualifiers. Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Xiubo Li
Ilya Dryomov
parent
70837470b4
commit
5107d7d505
@ -180,6 +180,47 @@ static int ceph_releasepage(struct page *page, gfp_t g)
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return !PagePrivate(page);
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}
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/*
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* Read some contiguous pages. If we cross a stripe boundary, shorten
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* *plen. Return number of bytes read, or error.
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*/
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static int ceph_sync_readpages(struct ceph_fs_client *fsc,
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struct ceph_vino vino,
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struct ceph_file_layout *layout,
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u64 off, u64 *plen,
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u32 truncate_seq, u64 truncate_size,
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struct page **pages, int num_pages,
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int page_align)
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{
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struct ceph_osd_client *osdc = &fsc->client->osdc;
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struct ceph_osd_request *req;
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int rc = 0;
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dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino,
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vino.snap, off, *plen);
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req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1,
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CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
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NULL, truncate_seq, truncate_size,
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false);
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if (IS_ERR(req))
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return PTR_ERR(req);
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/* it may be a short read due to an object boundary */
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osd_req_op_extent_osd_data_pages(req, 0,
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pages, *plen, page_align, false, false);
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dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
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off, *plen, *plen, page_align);
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rc = ceph_osdc_start_request(osdc, req, false);
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if (!rc)
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rc = ceph_osdc_wait_request(osdc, req);
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ceph_osdc_put_request(req);
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dout("readpages result %d\n", rc);
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return rc;
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}
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/*
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* read a single page, without unlocking it.
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*/
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@ -216,7 +257,7 @@ static int ceph_do_readpage(struct file *filp, struct page *page)
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dout("readpage inode %p file %p page %p index %lu\n",
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inode, filp, page, page->index);
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err = ceph_osdc_readpages(&fsc->client->osdc, ceph_vino(inode),
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err = ceph_sync_readpages(fsc, ceph_vino(inode),
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&ci->i_layout, off, &len,
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ci->i_truncate_seq, ci->i_truncate_size,
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&page, 1, 0);
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@ -568,6 +609,47 @@ static u64 get_writepages_data_length(struct inode *inode,
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return end > start ? end - start : 0;
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}
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/*
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* do a synchronous write on N pages
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*/
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static int ceph_sync_writepages(struct ceph_fs_client *fsc,
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struct ceph_vino vino,
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struct ceph_file_layout *layout,
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struct ceph_snap_context *snapc,
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u64 off, u64 len,
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u32 truncate_seq, u64 truncate_size,
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struct timespec64 *mtime,
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struct page **pages, int num_pages)
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{
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struct ceph_osd_client *osdc = &fsc->client->osdc;
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struct ceph_osd_request *req;
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int rc = 0;
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int page_align = off & ~PAGE_MASK;
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req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1,
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CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
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snapc, truncate_seq, truncate_size,
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true);
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if (IS_ERR(req))
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return PTR_ERR(req);
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/* it may be a short write due to an object boundary */
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osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align,
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false, false);
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dout("writepages %llu~%llu (%llu bytes)\n", off, len, len);
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req->r_mtime = *mtime;
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rc = ceph_osdc_start_request(osdc, req, true);
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if (!rc)
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rc = ceph_osdc_wait_request(osdc, req);
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ceph_osdc_put_request(req);
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if (rc == 0)
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rc = len;
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dout("writepages result %d\n", rc);
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return rc;
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}
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/*
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* Write a single page, but leave the page locked.
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*
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@ -626,7 +708,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
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set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC);
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set_page_writeback(page);
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err = ceph_osdc_writepages(&fsc->client->osdc, ceph_vino(inode),
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err = ceph_sync_writepages(fsc, ceph_vino(inode),
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&ci->i_layout, snapc, page_off, len,
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ceph_wbc.truncate_seq,
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ceph_wbc.truncate_size,
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@ -509,23 +509,6 @@ int ceph_osdc_call(struct ceph_osd_client *osdc,
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struct page *req_page, size_t req_len,
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struct page **resp_pages, size_t *resp_len);
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extern int ceph_osdc_readpages(struct ceph_osd_client *osdc,
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struct ceph_vino vino,
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struct ceph_file_layout *layout,
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u64 off, u64 *plen,
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u32 truncate_seq, u64 truncate_size,
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struct page **pages, int nr_pages,
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int page_align);
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extern int ceph_osdc_writepages(struct ceph_osd_client *osdc,
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struct ceph_vino vino,
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struct ceph_file_layout *layout,
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struct ceph_snap_context *sc,
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u64 off, u64 len,
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u32 truncate_seq, u64 truncate_size,
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struct timespec64 *mtime,
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struct page **pages, int nr_pages);
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int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
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u64 src_snapid, u64 src_version,
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struct ceph_object_id *src_oid,
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@ -5228,85 +5228,6 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc)
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ceph_msgpool_destroy(&osdc->msgpool_op_reply);
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}
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/*
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* Read some contiguous pages. If we cross a stripe boundary, shorten
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* *plen. Return number of bytes read, or error.
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*/
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int ceph_osdc_readpages(struct ceph_osd_client *osdc,
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struct ceph_vino vino, struct ceph_file_layout *layout,
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u64 off, u64 *plen,
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u32 truncate_seq, u64 truncate_size,
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struct page **pages, int num_pages, int page_align)
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{
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struct ceph_osd_request *req;
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int rc = 0;
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dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino,
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vino.snap, off, *plen);
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req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1,
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CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
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NULL, truncate_seq, truncate_size,
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false);
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if (IS_ERR(req))
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return PTR_ERR(req);
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/* it may be a short read due to an object boundary */
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osd_req_op_extent_osd_data_pages(req, 0,
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pages, *plen, page_align, false, false);
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dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
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off, *plen, *plen, page_align);
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rc = ceph_osdc_start_request(osdc, req, false);
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if (!rc)
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rc = ceph_osdc_wait_request(osdc, req);
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ceph_osdc_put_request(req);
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dout("readpages result %d\n", rc);
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return rc;
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}
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EXPORT_SYMBOL(ceph_osdc_readpages);
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/*
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* do a synchronous write on N pages
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*/
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int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
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struct ceph_file_layout *layout,
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struct ceph_snap_context *snapc,
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u64 off, u64 len,
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u32 truncate_seq, u64 truncate_size,
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struct timespec64 *mtime,
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struct page **pages, int num_pages)
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{
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struct ceph_osd_request *req;
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int rc = 0;
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int page_align = off & ~PAGE_MASK;
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req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1,
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CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE,
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snapc, truncate_seq, truncate_size,
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true);
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if (IS_ERR(req))
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return PTR_ERR(req);
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/* it may be a short write due to an object boundary */
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osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align,
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false, false);
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dout("writepages %llu~%llu (%llu bytes)\n", off, len, len);
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req->r_mtime = *mtime;
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rc = ceph_osdc_start_request(osdc, req, true);
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if (!rc)
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rc = ceph_osdc_wait_request(osdc, req);
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ceph_osdc_put_request(req);
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if (rc == 0)
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rc = len;
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dout("writepages result %d\n", rc);
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return rc;
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}
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EXPORT_SYMBOL(ceph_osdc_writepages);
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static int osd_req_op_copy_from_init(struct ceph_osd_request *req,
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u64 src_snapid, u64 src_version,
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struct ceph_object_id *src_oid,
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