Mercurial > yaffs-ecoscentric-gpl
changeset 350:c927f461f731
Prevent resizes bigger than 2GBytes
| author | charles <charles> |
|---|---|
| date | Wed, 10 Feb 2010 03:54:08 +0000 |
| parents | 9b5336e51f28 |
| children | c640f5d8f33e |
| files | yaffs_fs.c |
| diffstat | 1 files changed, 11 insertions(+), 4 deletions(-) [+] |
line wrap: on
line diff
--- a/yaffs_fs.c +++ b/yaffs_fs.c @@ -32,7 +32,7 @@ */ const char *yaffs_fs_c_version = - "$Id: yaffs_fs.c,v 1.92 2010-01-19 21:16:30 charles Exp $"; + "$Id: yaffs_fs.c,v 1.93 2010-02-10 03:54:08 charles Exp $"; extern const char *yaffs_guts_c_version; #include <linux/version.h> @@ -1662,14 +1662,20 @@ static int yaffs_rename(struct inode *ol static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; - int error; + int error = 0; yaffs_Device *dev; T(YAFFS_TRACE_OS, ("yaffs_setattr of object %d\n", yaffs_InodeToObject(inode)->objectId)); - error = inode_change_ok(inode, attr); + /* Fail if a requested resize >= 2GB */ + if (attr->ia_valid & ATTR_SIZE && + (attr->ia_size >> 31)) + error = -EINVAL; + + if (error == 0) + error = inode_change_ok(inode, attr); if (error == 0) { int result; if (!error){ @@ -1692,8 +1698,9 @@ static int yaffs_setattr(struct dentry * yaffs_GrossUnlock(dev); } + T(YAFFS_TRACE_OS, - ("yaffs_setattr done\n")); + ("yaffs_setattr done returning %d\n",error)); return error; }