For compressed file, after release compress blocks, don't allow write
direct, but we should allow write direct after truncate to zero.

Signed-off-by: Fengnan Chang <[email protected]>
---
 fs/f2fs/file.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6afd4562335f..094f6546fd00 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -740,6 +740,14 @@ int f2fs_truncate_blocks(struct inode *inode, u64 from, 
bool lock)
                return err;
 
 #ifdef CONFIG_F2FS_FS_COMPRESSION
+       /*
+        * For compressed file, after release compress blocks, don't allow write
+        * direct, but we should allow write direct after truncate to zero.
+        */
+       if (f2fs_compressed_file(inode) && !free_from
+                       && is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
+               clear_inode_flag(inode, FI_COMPRESS_RELEASED);
+
        if (from != free_from) {
                err = f2fs_truncate_partial_cluster(inode, from, lock);
                if (err)
-- 
2.29.0



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