[GFS2] Add a function to interate over an extent

Browse source

This adds a function (currently the only use is during mapping
of already allocated blocks, but watch this space) which iterates
over a number of pointers in a block and returns the extent length.

If the initial pointer is 0 (i.e. unallocated) it will return the
number of unallocated blocks in the extent. If the initial pointer
is allocated, then it returns the number of contiguously allocated
blocks in the extent.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

...

This commit is contained in:

Steven Whitehouse 2008-02-08 13:18:11 +00:00

parent c85a665f06

commit 30cbf189cd

1 changed files with 52 additions and 16 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

70

fs/gfs2/bmap.c

View file