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fuse: fix writepages on 32bit
Writepage requests were cropped to i_size & 0xffffffff, which meant that
mmaped writes to any file larger than 4G might be silently discarded.
Fix by storing the file size in a properly sized variable (loff_t instead
of size_t).
Reported-by: Antonio SJ Musumeci <trapexit@spawn.link>
Fixes: 6eaf4782eb
("fuse: writepages: crop secondary requests")
Cc: <stable@vger.kernel.org> # v3.13
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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1 changed files with 1 additions and 1 deletions
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@ -1586,7 +1586,7 @@ __acquires(fi->lock)
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{
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struct fuse_conn *fc = get_fuse_conn(inode);
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struct fuse_inode *fi = get_fuse_inode(inode);
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size_t crop = i_size_read(inode);
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loff_t crop = i_size_read(inode);
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struct fuse_req *req;
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while (fi->writectr >= 0 && !list_empty(&fi->queued_writes)) {
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