Commits
Theodore Ts'o committed f5ccfe1ddba
ext4: fix locking for O_APPEND writes Al Viro pointed out that locking for O_APPEND writes was problematic, since the location of the write isn't known until after we take the i_mutex, which impacts the ext4_unaligned_aio() and s_bitmap_maxbytes check. For O_APPEND always assume that the write is unaligned so call ext4_unwritten_wait(). And to solve the second problem, take the i_mutex earlier before we start the s_bitmap_maxbytes check. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>