Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: llseek fix race
  fuse: fix llseek bug
  fuse: fix fuse_retrieve

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5cb8614..2aaf3ea 100644 (file)
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1512,7 +1512,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
        else if (outarg->offset + num > file_size)
                num = file_size - outarg->offset;
 
-       while (num) {
+       while (num && req->num_pages < FUSE_MAX_PAGES_PER_REQ) {
                struct page *page;
                unsigned int this_num;
 
@@ -1526,6 +1526,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
 
                num -= this_num;
                total_len += this_num;
+               index++;
        }
        req->misc.retrieve_in.offset = outarg->offset;
        req->misc.retrieve_in.size = total_len;

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 594f07a..0c84100 100644 (file)
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1556,7 +1556,7 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
        struct inode *inode = file->f_path.dentry->d_inode;
 
        mutex_lock(&inode->i_mutex);
-       if (origin != SEEK_CUR || origin != SEEK_SET) {
+       if (origin != SEEK_CUR && origin != SEEK_SET) {
                retval = fuse_update_attributes(inode, NULL, file, NULL);
                if (retval)
                        goto exit;
@@ -1567,6 +1567,10 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
                offset += i_size_read(inode);
                break;
        case SEEK_CUR:
+               if (offset == 0) {
+                       retval = file->f_pos;
+                       goto exit;
+               }
                offset += file->f_pos;
                break;
        case SEEK_DATA: