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ext4: Use struct flex_groups to calculate get_orlov_stats()
authorTheodore Ts'o <tytso@mit.edu>
Thu, 5 Mar 2009 00:31:53 +0000 (19:31 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 5 Mar 2009 00:31:53 +0000 (19:31 -0500)
commit7d39db14a42cbd719c7515b9da8f85a2eb6a0633
tree5c93b9f76c9895183d1e973ed296cd9b7a1d9a0etree | snapshot (tar.bz2 tar.gz zip)
parent9f24e4208f7ee2748f157368b63287dc903fcf60commit | diff
ext4: Use struct flex_groups to calculate get_orlov_stats()

Instead of looping over all of the block groups in a flex group
summing their summary statistics, start tracking used_dirs in struct
flex_groups, and use struct flex_groups instead.  This should save a
bit of CPU for mkdir-heavy workloads.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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fs/ext4/ialloc.c diff | blob | blame | history
fs/ext4/super.c diff | blob | blame | history
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