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| author | Eric Sandeen <sandeen@redhat.com> | 2010-10-27 21:30:03 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-10-27 21:30:03 -0400 |
| commit | b443e7339aa08574d30b0819b344618459c76214 (patch) | |
| tree | 3c89ccd60deee6184b5cc9cf2bbb78291952b047 | |
| parent | 659c6009ca2e3a01acc9881bafe5f55ef09c965b (diff) | |
| download | op-kernel-dev-b443e7339aa08574d30b0819b344618459c76214.zip op-kernel-dev-b443e7339aa08574d30b0819b344618459c76214.tar.gz | |
ext4: don't bump up LONG_MAX nr_to_write by a factor of 8
I'm uneasy with lots of stuff going on in ext4_da_writepages(),
but bumping nr_to_write from LLONG_MAX to -8 clearly isn't
making anything better, so avoid the multiplier in that case.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/inode.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d88ba4a..50f3bba 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3004,9 +3004,12 @@ static int ext4_da_writepages(struct address_space *mapping, * sbi->max_writeback_mb_bump whichever is smaller. */ max_pages = sbi->s_max_writeback_mb_bump << (20 - PAGE_CACHE_SHIFT); - if (!range_cyclic && range_whole) - desired_nr_to_write = wbc->nr_to_write * 8; - else + if (!range_cyclic && range_whole) { + if (wbc->nr_to_write == LONG_MAX) + desired_nr_to_write = wbc->nr_to_write; + else + desired_nr_to_write = wbc->nr_to_write * 8; + } else desired_nr_to_write = ext4_num_dirty_pages(inode, index, max_pages); if (desired_nr_to_write > max_pages) |
