Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/nilfs2/Kconfig b/fs/nilfs2/Kconfig
index 80da8eb..254d102 100644
--- a/fs/nilfs2/Kconfig
+++ b/fs/nilfs2/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
config NILFS2_FS
tristate "NILFS2 file system support"
select CRC32
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index ebb24a3..4391fd3 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -168,24 +168,18 @@
ctxt->newbh = NULL;
if (inode->i_blkbits == PAGE_SHIFT) {
- lock_page(obh->b_page);
- /*
- * We cannot call radix_tree_preload for the kernels older
- * than 2.6.23, because it is not exported for modules.
- */
+ struct page *opage = obh->b_page;
+ lock_page(opage);
retry:
- err = radix_tree_preload(GFP_NOFS & ~__GFP_HIGHMEM);
- if (err)
- goto failed_unlock;
/* BUG_ON(oldkey != obh->b_page->index); */
- if (unlikely(oldkey != obh->b_page->index))
- NILFS_PAGE_BUG(obh->b_page,
+ if (unlikely(oldkey != opage->index))
+ NILFS_PAGE_BUG(opage,
"invalid oldkey %lld (newkey=%lld)",
(unsigned long long)oldkey,
(unsigned long long)newkey);
xa_lock_irq(&btnc->i_pages);
- err = radix_tree_insert(&btnc->i_pages, newkey, obh->b_page);
+ err = __xa_insert(&btnc->i_pages, newkey, opage, GFP_NOFS);
xa_unlock_irq(&btnc->i_pages);
/*
* Note: page->index will not change to newkey until
@@ -193,17 +187,16 @@
* To protect the page in intermediate state, the page lock
* is held.
*/
- radix_tree_preload_end();
if (!err)
return 0;
- else if (err != -EEXIST)
+ else if (err != -EBUSY)
goto failed_unlock;
err = invalidate_inode_pages2_range(btnc, newkey, newkey);
if (!err)
goto retry;
/* fallback to copy mode */
- unlock_page(obh->b_page);
+ unlock_page(opage);
}
nbh = nilfs_btnode_create_block(btnc, newkey);
@@ -243,9 +236,8 @@
mark_buffer_dirty(obh);
xa_lock_irq(&btnc->i_pages);
- radix_tree_delete(&btnc->i_pages, oldkey);
- radix_tree_tag_set(&btnc->i_pages, newkey,
- PAGECACHE_TAG_DIRTY);
+ __xa_erase(&btnc->i_pages, oldkey);
+ __xa_set_mark(&btnc->i_pages, newkey, PAGECACHE_TAG_DIRTY);
xa_unlock_irq(&btnc->i_pages);
opage->index = obh->b_blocknr = newkey;
@@ -274,9 +266,7 @@
return;
if (nbh == NULL) { /* blocksize == pagesize */
- xa_lock_irq(&btnc->i_pages);
- radix_tree_delete(&btnc->i_pages, newkey);
- xa_unlock_irq(&btnc->i_pages);
+ xa_erase_irq(&btnc->i_pages, newkey);
unlock_page(ctxt->bh->b_page);
} else
brelse(nbh);
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 9b96d79..91b9dac 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -148,13 +148,8 @@
oldflags = NILFS_I(inode)->i_flags;
- /*
- * The IMMUTABLE and APPEND_ONLY flags can only be changed by the
- * relevant capability.
- */
- ret = -EPERM;
- if (((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) &&
- !capable(CAP_LINUX_IMMUTABLE))
+ ret = vfs_ioc_setflags_prepare(inode, oldflags, flags);
+ if (ret)
goto out;
ret = nilfs_transaction_begin(inode->i_sb, &ti, 0);
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index a2f247b..42395ba 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -252,7 +252,6 @@
void nilfs_inode_add_blocks(struct inode *inode, int n);
void nilfs_inode_sub_blocks(struct inode *inode, int n);
extern struct inode *nilfs_new_inode(struct inode *, umode_t);
-extern void nilfs_free_inode(struct inode *);
extern int nilfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern void nilfs_set_inode_flags(struct inode *);
extern int nilfs_read_inode_common(struct inode *, struct nilfs_inode *);
@@ -289,7 +288,6 @@
/* super.c */
extern struct inode *nilfs_alloc_inode(struct super_block *);
-extern void nilfs_destroy_inode(struct inode *);
extern __printf(3, 4)
void __nilfs_msg(struct super_block *sb, const char *level,
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 329a056..d7fc8d3 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -289,7 +289,7 @@
* @dmap: destination page cache
* @smap: source page cache
*
- * No pages must no be added to the cache during this process.
+ * No pages must be added to the cache during this process.
* This must be ensured by the caller.
*/
void nilfs_copy_back_pages(struct address_space *dmap,
@@ -298,7 +298,6 @@
struct pagevec pvec;
unsigned int i, n;
pgoff_t index = 0;
- int err;
pagevec_init(&pvec);
repeat:
@@ -313,35 +312,34 @@
lock_page(page);
dpage = find_lock_page(dmap, offset);
if (dpage) {
- /* override existing page on the destination cache */
+ /* overwrite existing page in the destination cache */
WARN_ON(PageDirty(dpage));
nilfs_copy_page(dpage, page, 0);
unlock_page(dpage);
put_page(dpage);
+ /* Do we not need to remove page from smap here? */
} else {
- struct page *page2;
+ struct page *p;
/* move the page to the destination cache */
xa_lock_irq(&smap->i_pages);
- page2 = radix_tree_delete(&smap->i_pages, offset);
- WARN_ON(page2 != page);
-
+ p = __xa_erase(&smap->i_pages, offset);
+ WARN_ON(page != p);
smap->nrpages--;
xa_unlock_irq(&smap->i_pages);
xa_lock_irq(&dmap->i_pages);
- err = radix_tree_insert(&dmap->i_pages, offset, page);
- if (unlikely(err < 0)) {
- WARN_ON(err == -EEXIST);
+ p = __xa_store(&dmap->i_pages, offset, page, GFP_NOFS);
+ if (unlikely(p)) {
+ /* Probably -ENOMEM */
page->mapping = NULL;
- put_page(page); /* for cache */
+ put_page(page);
} else {
page->mapping = dmap;
dmap->nrpages++;
if (PageDirty(page))
- radix_tree_tag_set(&dmap->i_pages,
- offset,
- PAGECACHE_TAG_DIRTY);
+ __xa_set_mark(&dmap->i_pages, offset,
+ PAGECACHE_TAG_DIRTY);
}
xa_unlock_irq(&dmap->i_pages);
}
@@ -467,8 +465,7 @@
if (mapping) {
xa_lock_irq(&mapping->i_pages);
if (test_bit(PG_dirty, &page->flags)) {
- radix_tree_tag_clear(&mapping->i_pages,
- page_index(page),
+ __xa_clear_mark(&mapping->i_pages, page_index(page),
PAGECACHE_TAG_DIRTY);
xa_unlock_irq(&mapping->i_pages);
return clear_page_dirty_for_io(page);
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 26290aa..5729ee8 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -155,21 +155,14 @@
return &ii->vfs_inode;
}
-static void nilfs_i_callback(struct rcu_head *head)
+static void nilfs_free_inode(struct inode *inode)
{
- struct inode *inode = container_of(head, struct inode, i_rcu);
-
if (nilfs_is_metadata_file_inode(inode))
nilfs_mdt_destroy(inode);
kmem_cache_free(nilfs_inode_cachep, NILFS_I(inode));
}
-void nilfs_destroy_inode(struct inode *inode)
-{
- call_rcu(&inode->i_rcu, nilfs_i_callback);
-}
-
static int nilfs_sync_super(struct super_block *sb, int flag)
{
struct the_nilfs *nilfs = sb->s_fs_info;
@@ -686,7 +679,7 @@
static const struct super_operations nilfs_sops = {
.alloc_inode = nilfs_alloc_inode,
- .destroy_inode = nilfs_destroy_inode,
+ .free_inode = nilfs_free_inode,
.dirty_inode = nilfs_dirty_inode,
.evict_inode = nilfs_evict_inode,
.put_super = nilfs_put_super,