Now that generic_file_write_iter is no longer used, there are no
remaining users of these address space operations.
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
---
fs/gfs2/aops.c | 210 -------------------------------------------------
1 file changed, 210 deletions(-)
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index b0a219fae162..cc80fd71f3dd 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -639,132 +639,6 @@ static int gfs2_readpages(struct file *file, struct address_space *mapping,
return ret;
}
-/**
- * gfs2_write_begin - Begin to write to a file
- * @file: The file to write to
- * @mapping: The mapping in which to write
- * @pos: The file offset at which to start writing
- * @len: Length of the write
- * @flags: Various flags
- * @pagep: Pointer to return the page
- * @fsdata: Pointer to return fs data (unused by GFS2)
- *
- * Returns: errno
- */
-
-static int gfs2_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
-{
- struct gfs2_inode *ip = GFS2_I(mapping->host);
- struct gfs2_sbd *sdp = GFS2_SB(mapping->host);
- struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
- unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
- unsigned requested = 0;
- int alloc_required;
- int error = 0;
- pgoff_t index = pos >> PAGE_SHIFT;
- unsigned from = pos & (PAGE_SIZE - 1);
- struct page *page;
-
- gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh);
- error = gfs2_glock_nq(&ip->i_gh);
- if (unlikely(error))
- goto out_uninit;
- if (&ip->i_inode == sdp->sd_rindex) {
- error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE,
- GL_NOCACHE, &m_ip->i_gh);
- if (unlikely(error)) {
- gfs2_glock_dq(&ip->i_gh);
- goto out_uninit;
- }
- }
-
- alloc_required = gfs2_write_alloc_required(ip, pos, len);
-
- if (alloc_required || gfs2_is_jdata(ip))
- gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
-
- if (alloc_required) {
- struct gfs2_alloc_parms ap = { .aflags = 0, };
- requested = data_blocks + ind_blocks;
- ap.target = requested;
- error = gfs2_quota_lock_check(ip, &ap);
- if (error)
- goto out_unlock;
-
- error = gfs2_inplace_reserve(ip, &ap);
- if (error)
- goto out_qunlock;
- }
-
- rblocks = RES_DINODE + ind_blocks;
- if (gfs2_is_jdata(ip))
- rblocks += data_blocks ? data_blocks : 1;
- if (ind_blocks || data_blocks)
- rblocks += RES_STATFS + RES_QUOTA;
- if (&ip->i_inode == sdp->sd_rindex)
- rblocks += 2 * RES_STATFS;
- if (alloc_required)
- rblocks += gfs2_rg_blocks(ip, requested);
-
- error = gfs2_trans_begin(sdp, rblocks,
- PAGE_SIZE/sdp->sd_sb.sb_bsize);
- if (error)
- goto out_trans_fail;
-
- error = -ENOMEM;
- flags |= AOP_FLAG_NOFS;
- page = grab_cache_page_write_begin(mapping, index, flags);
- *pagep = page;
- if (unlikely(!page))
- goto out_endtrans;
-
- if (gfs2_is_stuffed(ip)) {
- error = 0;
- if (pos + len > gfs2_max_stuffed_size(ip)) {
- error = gfs2_unstuff_dinode(ip, page);
- if (error == 0)
- goto prepare_write;
- } else if (!PageUptodate(page)) {
- error = stuffed_readpage(ip, page);
- }
- goto out;
- }
-
-prepare_write:
- error = __block_write_begin(page, from, len, gfs2_block_map);
-out:
- if (error == 0)
- return 0;
-
- unlock_page(page);
- put_page(page);
-
- gfs2_trans_end(sdp);
- if (pos + len > ip->i_inode.i_size)
- gfs2_trim_blocks(&ip->i_inode);
- goto out_trans_fail;
-
-out_endtrans:
- gfs2_trans_end(sdp);
-out_trans_fail:
- if (alloc_required) {
- gfs2_inplace_release(ip);
-out_qunlock:
- gfs2_quota_unlock(ip);
- }
-out_unlock:
- if (&ip->i_inode == sdp->sd_rindex) {
- gfs2_glock_dq(&m_ip->i_gh);
- gfs2_holder_uninit(&m_ip->i_gh);
- }
- gfs2_glock_dq(&ip->i_gh);
-out_uninit:
- gfs2_holder_uninit(&ip->i_gh);
- return error;
-}
-
/**
* adjust_fs_space - Adjusts the free space available due to gfs2_grow
* @inode: the rindex inode
@@ -845,84 +719,6 @@ int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
return copied;
}
-/**
- * gfs2_write_end
- * @file: The file to write to
- * @mapping: The address space to write to
- * @pos: The file position
- * @len: The length of the data
- * @copied: How much was actually copied by the VFS
- * @page: The page that has been written
- * @fsdata: The fsdata (unused in GFS2)
- *
- * The main write_end function for GFS2. We just put our locking around the VFS
- * provided functions.
- *
- * Returns: copied bytes or errno
- */
-
-static int gfs2_write_end(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
-{
- struct inode *inode = page->mapping->host;
- struct gfs2_inode *ip = GFS2_I(inode);
- struct gfs2_sbd *sdp = GFS2_SB(inode);
- struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
- struct buffer_head *dibh;
- int ret;
- struct gfs2_trans *tr = current->journal_info;
- BUG_ON(!tr);
-
- BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == NULL);
-
- ret = gfs2_meta_inode_buffer(ip, &dibh);
- if (unlikely(ret))
- goto out;
-
- if (gfs2_is_stuffed(ip)) {
- ret = gfs2_stuffed_write_end(inode, dibh, pos, copied, page);
- page = NULL;
- goto out2;
- }
-
- if (gfs2_is_jdata(ip))
- gfs2_page_add_databufs(ip, page, pos & ~PAGE_MASK, len);
- else
- gfs2_ordered_add_inode(ip);
-
- ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
- page = NULL;
- if (tr->tr_num_buf_new)
- __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
- else
- gfs2_trans_add_meta(ip->i_gl, dibh);
-
-out2:
- if (inode == sdp->sd_rindex) {
- adjust_fs_space(inode);
- sdp->sd_rindex_uptodate = 0;
- }
-
- brelse(dibh);
-out:
- if (page) {
- unlock_page(page);
- put_page(page);
- }
- gfs2_trans_end(sdp);
- gfs2_inplace_release(ip);
- if (ip->i_qadata && ip->i_qadata->qa_qd_num)
- gfs2_quota_unlock(ip);
- if (inode == sdp->sd_rindex) {
- gfs2_glock_dq(&m_ip->i_gh);
- gfs2_holder_uninit(&m_ip->i_gh);
- }
- gfs2_glock_dq(&ip->i_gh);
- gfs2_holder_uninit(&ip->i_gh);
- return ret;
-}
-
/**
* jdata_set_page_dirty - Page dirtying function
* @page: The page to dirty
@@ -1090,8 +886,6 @@ static const struct address_space_operations gfs2_writeback_aops = {
.writepages = gfs2_writepages,
.readpage = gfs2_readpage,
.readpages = gfs2_readpages,
- .write_begin = gfs2_write_begin,
- .write_end = gfs2_write_end,
.bmap = gfs2_bmap,
.invalidatepage = gfs2_invalidatepage,
.releasepage = gfs2_releasepage,
@@ -1106,8 +900,6 @@ static const struct address_space_operations gfs2_ordered_aops = {
.writepages = gfs2_writepages,
.readpage = gfs2_readpage,
.readpages = gfs2_readpages,
- .write_begin = gfs2_write_begin,
- .write_end = gfs2_write_end,
.set_page_dirty = __set_page_dirty_buffers,
.bmap = gfs2_bmap,
.invalidatepage = gfs2_invalidatepage,
@@ -1123,8 +915,6 @@ static const struct address_space_operations gfs2_jdata_aops = {
.writepages = gfs2_jdata_writepages,
.readpage = gfs2_readpage,
.readpages = gfs2_readpages,
- .write_begin = gfs2_write_begin,
- .write_end = gfs2_write_end,
.set_page_dirty = jdata_set_page_dirty,
.bmap = gfs2_bmap,
.invalidatepage = gfs2_invalidatepage,
--
2.17.0
