Commits
Amir Goldstein committed 0c8e3fe35db
vfs: add the sb_start_intwrite_trylock() helper Needed by ext4 to test frozen fs before updating s_last_mounted. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>