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scst: Kernel v4.6-rc3 build fix

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See also patch "mm: drop PAGE_CACHE_* and page_cache_{get,release}
definition".


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6858 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2016-04-11 19:59:59 +00:00
parent dec1b4a12d
commit d619407d16
2 changed files with 25 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scst/src/dev_handlers/scst_user.c
+2 -2
View File
@@ -462,7 +462,7 @@ static void dev_user_unmap_buf(struct scst_user_cmd *ucmd)
if (ucmd->buf_dirty)
SetPageDirty(page);
page_cache_release(page);
put_page(page);
}
kfree(ucmd->data_pages);
@@ -1298,7 +1298,7 @@ out_unmap:
ucmd->num_data_pages, rc);
if (rc > 0) {
for (i = 0; i < rc; i++)
page_cache_release(ucmd->data_pages[i]);
put_page(ucmd->data_pages[i]);
}
kfree(ucmd->data_pages);
ucmd->data_pages = NULL;
scst/src/dev_handlers/scst_vdisk.c
+23 -24
View File
@@ -3057,7 +3057,7 @@ static void finish_read(struct scatterlist *sg, int sg_cnt)
for (i = 0; i < sg_cnt; ++i) {
page = sg_page(&sg[i]);
EXTRACHECKS_BUG_ON(!page);
page_cache_release(page);
put_page(page);
}
TRACE_EXIT();
@@ -3097,13 +3097,13 @@ static int prepare_read_page(struct file *filp, int len,
TRACE_ENTRY();
WARN((offset & ~PAGE_CACHE_MASK) + len > PAGE_CACHE_SIZE,
"offset = %lld + %lld, len = %d\n", offset & PAGE_CACHE_MASK,
offset & ~PAGE_CACHE_MASK, len);
WARN((offset & ~PAGE_MASK) + len > PAGE_SIZE,
"offset = %lld + %lld, len = %d\n", offset & PAGE_MASK,
offset & ~PAGE_MASK, len);
sBUG_ON(!mapping->a_ops);
index = offset >> PAGE_CACHE_SHIFT;
last_index = (last + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
index = offset >> PAGE_SHIFT;
last_index = (last + PAGE_SIZE - 1) >> PAGE_SHIFT;
find_page:
page = find_get_page(mapping, index);
@@ -3123,7 +3123,7 @@ find_page:
error = add_to_page_cache_lru(page, mapping, index,
GFP_KERNEL);
if (error) {
page_cache_release(page);
put_page(page);
if (error == -EEXIST)
goto find_page;
else
@@ -3137,7 +3137,7 @@ find_page:
page_cache_async_readahead(mapping, ra, filp, page,
index, last_index - index);
if (!PageUptodate(page)) {
if (inode->i_blkbits == PAGE_CACHE_SHIFT ||
if (inode->i_blkbits == PAGE_SHIFT ||
!mapping->a_ops->is_partially_uptodate)
goto page_not_up_to_date;
if (!trylock_page(page))
@@ -3147,10 +3147,10 @@ find_page:
goto page_not_up_to_date_locked;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0)
if (!mapping->a_ops->is_partially_uptodate(page,
offset & ~PAGE_CACHE_MASK, len))
offset & ~PAGE_MASK, len))
#else
if (!mapping->a_ops->is_partially_uptodate(page, &desc,
offset & ~PAGE_CACHE_MASK))
offset & ~PAGE_MASK))
#endif
goto page_not_up_to_date_locked;
unlock_page(page);
@@ -3166,20 +3166,19 @@ page_ok:
*/
isize = i_size_read(inode);
end_index = (isize - 1) >> PAGE_CACHE_SHIFT;
end_index = (isize - 1) >> PAGE_SHIFT;
if (unlikely(isize == 0 || index > end_index)) {
page_cache_release(page);
put_page(page);
goto eof;
}
/* nr is the maximum number of bytes to copy from this page */
if (index < end_index) {
nr = PAGE_CACHE_SIZE - (offset & ~PAGE_CACHE_MASK);
nr = PAGE_SIZE - (offset & ~PAGE_MASK);
} else {
nr = ((isize - 1) & ~PAGE_CACHE_MASK) + 1 -
(offset & ~PAGE_CACHE_MASK);
nr = ((isize - 1) & ~PAGE_MASK) + 1 - (offset & ~PAGE_MASK);
if (nr <= 0) {
page_cache_release(page);
put_page(page);
goto eof;
}
}
@@ -3209,7 +3208,7 @@ page_not_up_to_date:
/* Try to get exclusive access to the page. */
error = lock_page_killable(page);
if (unlikely(error != 0)) {
page_cache_release(page);
put_page(page);
goto err;
}
@@ -3217,7 +3216,7 @@ page_not_up_to_date_locked:
/* Did it get truncated before we got the lock? */
if (!page->mapping) {
unlock_page(page);
page_cache_release(page);
put_page(page);
goto find_page;
}
@@ -3238,18 +3237,18 @@ readpage:
error = mapping->a_ops->readpage(filp, page);
if (unlikely(error)) {
if (error == AOP_TRUNCATED_PAGE) {
page_cache_release(page);
put_page(page);
goto find_page;
}
WARN(error >= 0, "error = %d\n", error);
page_cache_release(page);
put_page(page);
goto err;
}
if (!PageUptodate(page)) {
error = lock_page_killable(page);
if (unlikely(error != 0)) {
page_cache_release(page);
put_page(page);
goto err;
}
if (!PageUptodate(page)) {
@@ -3258,11 +3257,11 @@ readpage:
* invalidate_mapping_pages got it
*/
unlock_page(page);
page_cache_release(page);
put_page(page);
goto find_page;
}
unlock_page(page);
page_cache_release(page);
put_page(page);
error = -EIO;
goto err;
}
@@ -3295,7 +3294,7 @@ static int prepare_read(struct file *filp, struct scatterlist *sg, int sg_cnt,
if (res <= 0)
goto err;
if (res < sg[i].length) {
page_cache_release(page);
put_page(page);
goto err;
}
sg_assign_page(&sg[i], page);