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a couple fixes for jfs

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Merge tag 'jfs-3.10' of git://github.com/kleikamp/linux-shaggy

Pull jfs fixes from David Kleikamp:
 "A couple fixes for jfs"

(What's with the unhelpful pull request "explanations" from fs people
today?)

* tag 'jfs-3.10' of git://github.com/kleikamp/linux-shaggy:
  jfs: fix a couple races
  jfs: avoid undefined behavior from left-shifting by 32 bits
This commit is contained in:
Linus Torvalds 2013-05-03 09:57:16 -07:00
parent 14a9e5c09d 73aaa22d5f
commit 86652188f3
3 changed files with 4 additions and 3 deletions
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2
fs/jfs/inode.c
View file

@ -125,7 +125,7 @@ int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
int wait = wbc->sync_mode == WB_SYNC_ALL;
if (test_cflag(COMMIT_Nolink, inode))
if (inode->i_nlink == 0)
return 0;
/*
* If COMMIT_DIRTY is not set, the inode isn't really dirty.

2
fs/jfs/jfs_imap.c
View file

@ -1493,7 +1493,7 @@ int diAlloc(struct inode *pip, bool dir, struct inode *ip)
/* mask any prior bits for the starting words of the
* summary map.
*/
mask = ONES << (EXTSPERSUM - bitno);
mask = (bitno == 0) ? 0 : (ONES << (EXTSPERSUM - bitno));
inosmap = le32_to_cpu(iagp->inosmap[sword]) | mask;
extsmap = le32_to_cpu(iagp->extsmap[sword]) | mask;

3
fs/jfs/jfs_logmgr.c
View file

@ -1058,7 +1058,8 @@ static int lmLogSync(struct jfs_log * log, int hard_sync)
*/
void jfs_syncpt(struct jfs_log *log, int hard_sync)
{ LOG_LOCK(log);
lmLogSync(log, hard_sync);
if (!test_bit(log_QUIESCE, &log->flag))
lmLogSync(log, hard_sync);
LOG_UNLOCK(log);
}