tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.const-path head: 0e46f2346cbf0427af8f1391f8a40c8283104738 commit: d181c64817a4c866a6ee518b145cceb24a99ca19 [3/18] constify vfs_truncate() config: x86_64-randconfig-x010-201613 (attached as .config) reproduce: git checkout d181c64817a4c866a6ee518b145cceb24a99ca19 # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): fs/open.c: In function 'vfs_truncate': >> fs/open.c:107:34: warning: passing argument 1 of 'security_path_truncate' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] error = security_path_truncate(path); ^ In file included from fs/open.c:18:0: include/linux/security.h:1484:19: note: expected 'struct path *' but argument is of type 'const struct path *' static inline int security_path_truncate(struct path *path) ^ vim +107 fs/open.c 9ac9b847 Dave Hansen 2008-02-15 91 goto mnt_drop_write_and_out; ^1da177e Linus Torvalds 2005-04-16 92 9700382c david m. richter 2007-07-31 93 error = get_write_access(inode); ^1da177e Linus Torvalds 2005-04-16 94 if (error) 9ac9b847 Dave Hansen 2008-02-15 95 goto mnt_drop_write_and_out; ^1da177e Linus Torvalds 2005-04-16 96 9700382c david m. richter 2007-07-31 97 /* 9700382c david m. richter 2007-07-31 98 * Make sure that there are no leases. get_write_access() protects 9700382c david m. richter 2007-07-31 99 * against the truncate racing with a lease-granting setlease(). 9700382c david m. richter 2007-07-31 100 */ 8737c930 Al Viro 2009-12-24 101 error = break_lease(inode, O_WRONLY); ^1da177e Linus Torvalds 2005-04-16 102 if (error) 9700382c david m. richter 2007-07-31 103 goto put_write_and_out; ^1da177e Linus Torvalds 2005-04-16 104 ^1da177e Linus Torvalds 2005-04-16 105 error = locks_verify_truncate(inode, NULL, length); be6d3e56 Kentaro Takeda 2008-12-17 106 if (!error) a02de960 David Howells 2012-12-20 @107 error = security_path_truncate(path); 907f4554 Christoph Hellwig 2010-03-03 108 if (!error) a02de960 David Howells 2012-12-20 109 error = do_truncate(path->dentry, length, 0, NULL); ^1da177e Linus Torvalds 2005-04-16 110 9700382c david m. richter 2007-07-31 111 put_write_and_out: 9700382c david m. richter 2007-07-31 112 put_write_access(inode); 9ac9b847 Dave Hansen 2008-02-15 113 mnt_drop_write_and_out: a02de960 David Howells 2012-12-20 114 mnt_drop_write(path->mnt); ^1da177e Linus Torvalds 2005-04-16 115 out: :::::: The code at line 107 was first introduced by commit :::::: a02de9608595c8ef649ef03ae735b0b45e3d4396 VFS: Make more complete truncate operation available to CacheFiles :::::: TO: David Howells <dhowells@xxxxxxxxxx> :::::: CC: David Howells <dhowells@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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