hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9DN5Z CVE: NA
--------------------------------
Add ext4_iomap_zero_range() for the zero_range iomap path, it zero out the mapped blocks, all work have been done in iomap_zero_range(), so call it directly.
Signed-off-by: Zhang Yi yi.zhang@huawei.com --- fs/ext4/inode.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 9a23775b4506..62bd34d56785 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4158,6 +4158,13 @@ static int __ext4_block_zero_page_range(handle_t *handle, return err; }
+static int ext4_iomap_zero_range(struct inode *inode, + loff_t from, loff_t length) +{ + return iomap_zero_range(inode, from, length, NULL, + &ext4_iomap_buffered_read_ops); +} + /* * ext4_block_zero_page_range() zeros out a mapping of length 'length' * starting from file offset 'from'. The range to be zero'd must @@ -4183,6 +4190,8 @@ static int ext4_block_zero_page_range(handle_t *handle, if (IS_DAX(inode)) { return dax_zero_range(inode, from, length, NULL, &ext4_iomap_ops); + } else if (ext4_test_inode_state(inode, EXT4_STATE_BUFFERED_IOMAP)) { + return ext4_iomap_zero_range(inode, from, length); } return __ext4_block_zero_page_range(handle, mapping, from, length); }