ilo-pona/xv6-65oo2
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This commit is contained in:
Robert Morris 2014-08-27 14:14:52 -04:00
parent 2c56547272
commit 12eeefc72d
2 changed files with 2 additions and 2 deletions
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2
bio.c
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@ -56,7 +56,7 @@ binit(void)
} }
// Look through buffer cache for sector on device dev. // Look through buffer cache for sector on device dev.
// If not found, allocate fresh block. // If not found, allocate a buffer.
// In either case, return B_BUSY buffer. // In either case, return B_BUSY buffer.
static struct buf* static struct buf*
bget(uint dev, uint sector) bget(uint dev, uint sector)

2
fs.c
View file

@ -321,7 +321,7 @@ 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: truncate and free inode. // inode has no links and no other references: truncate and free inode.
if(ip->flags & I_BUSY) if(ip->flags & I_BUSY)
panic("iput busy"); panic("iput busy");
ip->flags |= I_BUSY; ip->flags |= I_BUSY;