ext4: Use atomic_t's in struct flex_groups
authorTheodore Ts'o <tytso@mit.edu>
Thu, 5 Mar 2009 00:09:10 +0000 (19:09 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 5 Mar 2009 00:09:10 +0000 (19:09 -0500)
Reduce pressure on the sb_bgl_lock family of locks by using atomic_t's
to track the number of free blocks and inodes in each flex_group.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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