This patchset fixes an issue that sync syscall to an existing DAX file does not flush processor cache. Patch 1/2 adds a check to skip the journal inode. It's a bit awkward, but I could not find a beter way to get the journal inode. Patch 2/2 fixes the issue by moving up ext4_set_inode_flags() before ext4_set_aops() in ext4_iget(). This assumes updated i_flags is harmless in the error cases after the moved-up ext4_set_inode_flags(). Please review. --- Toshi Kani (2): 1/2 ext4, dax: update dax check to skip journal inode 2/2 ext4, dax: set ext4_dax_aops for dax files --- fs/ext4/ext4_jbd2.h | 8 ++++++++ fs/ext4/inode.c | 5 ++++- 2 files changed, 12 insertions(+), 1 deletion(-)
