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ext4: stop looping in ext4_num_dirty_pages when max_pages reached
authorEric Sandeen <sandeen@redhat.com>
Thu, 28 Oct 2010 01:30:03 +0000 (21:30 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 28 Oct 2010 01:30:03 +0000 (21:30 -0400)
commit659c6009ca2e3a01acc9881bafe5f55ef09c965b
treec7d6b0a8cfb8f5979f3f8d0e0e5122ffd9c688betree | snapshot (tar.gz zip)
parentfb1813f4a8a27bbd4735967e46931e61fc837a3ecommit | diff
ext4: stop looping in ext4_num_dirty_pages when max_pages reached

Today we simply break out of the inner loop when we have accumulated
max_pages; this keeps scanning forwad and doing pagevec_lookup_tag()
in the while (!done) loop, this does potentially a lot of work
with no net effect.

When we have accumulated max_pages, just clean up and return.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/inode.c diff | blob | blame | history