• Theodore Ts'o's avatar
    ext4: improve handling of conflicting mount options · 56889787
    Theodore Ts'o authored
    If the user explicitly specifies conflicting mount options for
    delalloc or dioread_nolock and data=journal, fail the mount, instead
    of printing a warning and continuing (since many user's won't look at
    dmesg and notice the warning).
    
    Also, print a single warning that data=journal implies that delayed
    allocation is not on by default (since it's not supported), and
    furthermore that O_DIRECT is not supported.  Improve the text in
    Documentation/filesystems/ext4.txt so this is clear there as well.
    
    Similarly, if the dioread_nolock mount option is specified when the
    file system block size != PAGE_SIZE, fail the mount instead of
    printing a warning message and ignoring the mount option.
    Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
    56889787
ext4.txt 25.8 KB