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Write a switch statement as less obscure if statements.

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This commit is contained in:
Poul-Henning Kamp 2001-04-17 20:22:07 +00:00
parent 07eb2bbb9c
commit 0dfba3cef1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=75629
1 changed files with 8 additions and 18 deletions
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26
sys/kern/vfs_bio.c
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@ -1210,24 +1210,14 @@ brelse(struct buf * bp)
/* remaining buffers */
} else {
switch(bp->b_flags & (B_DELWRI|B_AGE)) {
case B_DELWRI | B_AGE:
bp->b_qindex = QUEUE_DIRTY;
TAILQ_INSERT_HEAD(&bufqueues[QUEUE_DIRTY], bp, b_freelist);
break;
case B_DELWRI:
bp->b_qindex = QUEUE_DIRTY;
TAILQ_INSERT_TAIL(&bufqueues[QUEUE_DIRTY], bp, b_freelist);
break;
case B_AGE:
bp->b_qindex = QUEUE_CLEAN;
TAILQ_INSERT_HEAD(&bufqueues[QUEUE_CLEAN], bp, b_freelist);
break;
default:
bp->b_qindex = QUEUE_CLEAN;
TAILQ_INSERT_TAIL(&bufqueues[QUEUE_CLEAN], bp, b_freelist);
break;
}
if (bp->b_flags & B_DELWRI)
bp->b_qindex = QUEUE_DIRTY;
else
bp->b_qindex = QUEUE_CLEAN;
if (bp->b_flags & B_AGE)
TAILQ_INSERT_HEAD(&bufqueues[bp->b_qindex], bp, b_freelist);
else
TAILQ_INSERT_TAIL(&bufqueues[bp->b_qindex], bp, b_freelist);
}
/*