ext4: add support for online resizing with bigalloc

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This patch adds support for online resizing on bigalloc file system by
implementing EXT4_IOC_RESIZE_FS ioctl. Old resize interfaces (add
block groups and extend last block group) are left untouched. Tests
performed with cluster sizes of 1, 2, 4 and 8 blocks (of size 4k) per
cluster. I will add these tests to xfstests.

Signed-off-by: Harshad Shirwadkar <harshads@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

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harshads 2017-10-29 09:38:46 -04:00 • committed by Theodore Ts'o

parent d98bf8cd11

commit d77147ff44

4 changed files with 84 additions and 58 deletions

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4

fs/ext4/ext4.h

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6

fs/ext4/ioctl.c

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28

fs/ext4/mballoc.c

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104

fs/ext4/resize.c

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