[PATCH] swap: move destroy_swap_extents calls

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sys_swapon's call to destroy_swap_extents on failure is made after the final
swap_list_unlock, which is faintly unsafe: another sys_swapon might already be
setting up that swap_info_struct.  Calling it earlier, before taking
swap_list_lock, is safe.  sys_swapoff's call to destroy_swap_extents was safe,
but likewise move it earlier, before taking the locks (once try_to_unuse has
completed, nothing can be needing the swap extents).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Hugh Dickins 2005-09-03 15:54:33 -07:00 • committed by Linus Torvalds

parent e2244ec2ef

commit 4cd3bb10ff

1 changed files with 2 additions and 2 deletions

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mm/swapfile.c

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