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nilfs2: eliminate sparse warning - "context imbalance"

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insert sparse annotations to fix following sparse warning.

fs/nilfs2/segment.c:2681:3: warning: context imbalance in 'nilfs_segctor_kill_thread' - unexpected unlock

nilfs_segctor_kill_thread is only called inside sc_state_lock lock.
sparse doesn't detect the context and warn "unexpected unlock".
__acquires/__releases pretend to lock/unlock the sc_state_lock for sparse.

Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Jiro SEKIBA 2010-10-14 13:52:00 +09:00 committed by Ryusuke Konishi
parent abc0b50b6b
commit 6b81e14e64
1 changed files with 2 additions and 0 deletions
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fs/nilfs2/segment.c
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@ -2674,6 +2674,8 @@ static int nilfs_segctor_start_thread(struct nilfs_sc_info *sci)
} }
static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci) static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci)
__acquires(&sci->sc_state_lock)
__releases(&sci->sc_state_lock)
{ {
sci->sc_state |= NILFS_SEGCTOR_QUIT; sci->sc_state |= NILFS_SEGCTOR_QUIT;