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frans' fixes to iput()

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This commit is contained in:
Robert Morris 2017-08-08 13:26:57 -04:00
parent 9cec455b17
commit aba8423c4a
1 changed files with 2 additions and 0 deletions
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2
fs.c
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@ -322,12 +322,14 @@ iput(struct inode *ip)
acquire(&icache.lock); acquire(&icache.lock);
if(ip->ref == 1 && (ip->flags & I_VALID) && ip->nlink == 0){ if(ip->ref == 1 && (ip->flags & I_VALID) && ip->nlink == 0){
// inode has no links and no other references: truncate and free. // inode has no links and no other references: truncate and free.
acquiresleep(&ip->lock);
release(&icache.lock); release(&icache.lock);
itrunc(ip); itrunc(ip);
ip->type = 0; ip->type = 0;
iupdate(ip); iupdate(ip);
acquire(&icache.lock); acquire(&icache.lock);
ip->flags = 0; ip->flags = 0;
releasesleep(&ip->lock);
} }
ip->ref--; ip->ref--;
release(&icache.lock); release(&icache.lock);