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-rw-r--r--fs/f2fs/data.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index a0d3b40a78ec..928e9fb46227 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1799,7 +1799,8 @@ out:
return err;
}
-bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
+static bool __f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len,
+ bool check_first)
{
struct f2fs_map_blocks map;
block_t last_lblk;
@@ -1821,10 +1822,17 @@ bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
if (err || map.m_len == 0)
return false;
map.m_lblk += map.m_len;
+ if (check_first)
+ break;
}
return true;
}
+bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
+{
+ return __f2fs_overwrite_io(inode, pos, len, false);
+}
+
static int f2fs_xattr_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo)
{
@@ -4187,7 +4195,7 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
* f2fs_map_lock and f2fs_balance_fs are not necessary.
*/
if ((flags & IOMAP_WRITE) &&
- !f2fs_overwrite_io(inode, offset, length))
+ !__f2fs_overwrite_io(inode, offset, length, true))
map.m_may_create = true;
err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DIO);