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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-10-16 10:10:36 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-10-16 10:10:36 -0400 |
| commit | 22208dedbd7626e5fc4339c417f8d24cc21f79d7 (patch) | |
| tree | d03fc8524dc7cb2f18c2038ffe4d2146903f630e /fs/ext4/super.c | |
| parent | 17bc6c30cf6bfffd816bdc53682dd46fc34a2cf4 (diff) | |
ext4: Fix file fragmentation during large file write.
The range_cyclic writeback mode uses the address_space writeback_index
as the start index for writeback. With delayed allocation we were
updating writeback_index wrongly resulting in highly fragmented file.
This patch reduces the number of extents reduced from 4000 to 27 for a
3GB file.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/super.c')
0 files changed, 0 insertions, 0 deletions