ocfs2: simplify deallocation locking

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Deallocation of suballocator blocks, most notably extent blocks, might
involve multiple suballocator inodes.

The locking for this can get extremely complicated, especially when the
suballocator inodes to delete from aren't known until deep within an
unrelated codepath.

Implement a simple scheme for recording the blocks to be unlinked so that
the actual deallocation can be done in a context which won't deadlock.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

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This commit is contained in:

Mark Fasheh 2007-06-22 15:45:27 -07:00

parent bce997682f

commit 2b604351bc

4 changed files with 242 additions and 21 deletions

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204

fs/ocfs2/alloc.c

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19

fs/ocfs2/alloc.h

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27

fs/ocfs2/suballoc.c

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13

fs/ocfs2/suballoc.h

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