Now tmpfs enables i_version by default and tmpfs does not modify it. But
SB_I_VERSION can also be modified via sb_flags, and reconfigure_super()
always overwrites the existing flags with the latest ones. This means
that if tmpfs is remounted without specifying iversion, the default
i_version will be unexpectedly disabled.
To ensure iversion remains enabled, SB_I_VERSION is now always set for
fc->sb_flags in shmem_init_fs_context(), instead of for sb->s_flags in
shmem_fill_super().
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 36f05cab0a ("tmpfs: add support for an i_version counter")
Signed-off-by: Baokun Li <[email protected]>
Reviewed-by: Baolin Wang <[email protected]>
Tested-by: Baolin Wang <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Baokun Li
63ec0c26b6