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| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | kernel/file.c | 4 |
2 files changed, 7 insertions, 0 deletions
@@ -2,6 +2,9 @@ * Fix Oops in case of nfs export. Spotted by David Shaw + * Fix another Oops in case of write over nfs with direct_io turned + on. Again spotted by David Shaw + 2005-04-07 Miklos Szeredi <miklos@szeredi.hu> * Released 2.3-pre4 diff --git a/kernel/file.c b/kernel/file.c index a886546..e7de38a 100644 --- a/kernel/file.c +++ b/kernel/file.c @@ -508,6 +508,10 @@ static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf, unsigned offset = user_addr & ~PAGE_MASK; int npages; + /* This doesn't work with nfsd */ + if (!current->mm) + return -EPERM; + nbytes = min(nbytes, (unsigned) FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT); npages = (nbytes + offset + PAGE_SIZE - 1) >> PAGE_SHIFT; npages = min(npages, FUSE_MAX_PAGES_PER_REQ); |