6.11-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu chao@kernel.org
[ Upstream commit ebd3309aec6271c4616573b0cb83ea25e623070a ]
We should always truncate pagecache while truncating on-disk data.
Fixes: a46bebd502fe ("f2fs: synchronize atomic write aborts") Signed-off-by: Chao Yu chao@kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/f2fs/file.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index e178e3ebde04e..5558a75f29b79 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2184,6 +2184,10 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate) F2FS_I(fi->cow_inode)->atomic_inode = inode; } else { /* Reuse the already created COW inode */ + f2fs_bug_on(sbi, get_dirty_pages(fi->cow_inode)); + + invalidate_mapping_pages(fi->cow_inode->i_mapping, 0, -1); + ret = f2fs_do_truncate_blocks(fi->cow_inode, 0, true); if (ret) { f2fs_up_write(&fi->i_gc_rwsem[WRITE]);