ext4: fix EOFBLOCKS_FL handling
authorTheodore Ts'o <tytso@mit.edu>
Thu, 28 Oct 2010 01:23:12 +0000 (21:23 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 28 Oct 2010 01:23:12 +0000 (21:23 -0400)
commit58590b06d79f7ce5ab64ff3b6d537180fa50dc84
tree4e3c785e4ec6709385f62b741389de34a9ade279
parent899611ee7d373e5eeda08e9a8632684e1ebbbf00
ext4: fix EOFBLOCKS_FL handling

It turns out we have several problems with how EOFBLOCKS_FL is
handled.  First of all, there was a fencepost error where we were not
clearing the EOFBLOCKS_FL when fill in the last uninitialized block,
but rather when we allocate the next block _after_ the uninitalized
block.  Secondly we were not testing to see if we needed to clear the
EOFBLOCKS_FL when writing to the file O_DIRECT or when were converting
an uninitialized block (which is the most common case).

Google-Bug-Id: 2928259

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/extents.c