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Prevent schedule while atomic in __logfs_readdir 

Apparently filldir can sleep, which forbids kmap_atomic.

Signed-off-by: Joern Engel <joern@logfs.org>
hifive-unleashed-5.1
Joern Engel 2010-03-17 16:00:07 +01:00
parent e07bf553f3
commit e326068806
1 changed files with 2 additions and 2 deletions
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4
fs/logfs/dir.c
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@ -303,12 +303,12 @@ static int __logfs_readdir(struct file *file, void *buf, filldir_t filldir)
(filler_t *)logfs_readpage, NULL);
if (IS_ERR(page))
return PTR_ERR(page);
dd = kmap_atomic(page, KM_USER0);
dd = kmap(page);
BUG_ON(dd->namelen == 0);
full = filldir(buf, (char *)dd->name, be16_to_cpu(dd->namelen),
pos, be64_to_cpu(dd->ino), dd->type);
kunmap_atomic(dd, KM_USER0);
kunmap(page);
page_cache_release(page);
if (full)
break;