xfs: Account for AGFL blocks in XFS_IOC_FIEMAPFS
The xfs_spaceman utility previously failed to account for AGFL
blocks. Old output:
$ sudo xfs_spaceman -c "freesp" /media/xfs
from to extents blocks pct
1024 2047 1 1262 0.04
4096 8191 1 5126 0.15
8192 16383 3 35344 1.05
32768 65535 1 43989 1.31
262144 524287 3 1334894 39.78
524288 967428 2 1934840 57.66
As you can see the AGFL blocks were unaccounted (4 per AG, and there
were 4 AGs in this filesystem). This patch adds a new function
which accounts for the the free extents tracked by the AGFL.
New output:
$ sudo xfs_spaceman -c "freesp" /media/xfs
from to extents blocks pct
1 1 16 16 0.00
1024 2047 1 1262 0.04
4096 8191 1 5126 0.15
8192 16383 3 35344 1.05
32768 65535 1 43989 1.31
262144 524287 3 1334894 39.78
524288 967428 2 1934840 57.66
[dchinner: fixed whitespace issues, agfl iteration logic,
error handling]
Signed-off-by: Dhruvesh Rathore <dhruvesh_r@outlook.com>
Signed-off-by: Amey Ruikar <ameyruikar@yahoo.com>
Signed-off-by: Somdeep Dey <somdeepdey10@gmail.com>
1 file changed
