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| H A D | ext4.h | diff 3d392b2676bf3199863a1e5efb2c087ad9d442a4 Fri Jul 17 06:14:40 CEST 2020 Theodore Ts'o <tytso@mit.edu> ext4: add prefetch_block_bitmaps mount option
For file systems where we can afford to keep the buddy bitmaps cached,
we can speed up initial writes to large file systems by starting to
load the block allocation bitmaps as soon as the file system is
mounted. This won't work well for _super_ large file systems, or
memory constrained systems, so we only enable this when it is
requested via a mount option.
Addresses-Google-Bug: 159488342
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
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