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From: Al Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
Cc: torvalds@linux-foundation.org, brauner@kernel.org, jack@suse.cz,
	mjguzik@gmail.com, paul@paul-moore.com, axboe@kernel.dk,
	audit@vger.kernel.org, io-uring@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC PATCH v3 20/59] file_getattr(): filename_lookup() accepts ERR_PTR() as filename
Date: Tue, 16 Dec 2025 03:54:39 +0000	[thread overview]
Message-ID: <20251216035518.4037331-21-viro@zeniv.linux.org.uk> (raw)
In-Reply-To: <20251216035518.4037331-1-viro@zeniv.linux.org.uk>

no need to check it in the caller

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/file_attr.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/file_attr.c b/fs/file_attr.c
index 4c4916632f11..f9e4d4014afc 100644
--- a/fs/file_attr.c
+++ b/fs/file_attr.c
@@ -394,9 +394,6 @@ SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename,
 		return -EINVAL;
 
 	name = getname_maybe_null(filename, at_flags);
-	if (IS_ERR(name))
-		return PTR_ERR(name);
-
 	if (!name && dfd >= 0) {
 		CLASS(fd, f)(dfd);
 		if (fd_empty(f))
-- 
2.47.3


  parent reply	other threads:[~2025-12-16  3:54 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-16  3:54 [RFC PATCH v3 00/59] struct filename work Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 01/59] do_faccessat(): import pathname only once Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 02/59] do_fchmodat(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 03/59] do_fchownat(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 04/59] do_utimes_path(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 05/59] chdir(2): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 06/59] chroot(2): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 07/59] user_statfs(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 08/59] do_sys_truncate(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 09/59] do_readlinkat(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 10/59] get rid of audit_reusename() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 11/59] ntfs: ->d_compare() must not block Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 12/59] getname_flags() massage, part 1 Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 13/59] getname_flags() massage, part 2 Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 14/59] struct filename: use names_cachep only for getname() and friends Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 15/59] struct filename: saner handling of long names Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 16/59] fs: hide names_cache behind runtime const machinery Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 17/59] allow incomplete imports of filenames Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 18/59] struct filename ->refcnt doesn't need to be atomic Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 19/59] allow to use CLASS() for struct filename * Al Viro
2025-12-16  3:54 ` Al Viro [this message]
2025-12-16  3:54 ` [RFC PATCH v3 21/59] file_setattr(): filename_lookup() accepts ERR_PTR() as filename Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 22/59] move_mount(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 23/59] ksmbd_vfs_path_lookup(): vfs_path_parent_lookup() accepts ERR_PTR() as name Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 24/59] ksmbd_vfs_rename(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 25/59] do_filp_open(): DTRT when getting ERR_PTR() as pathname Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 26/59] rename do_filp_open() to do_file_open() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 27/59] do_sys_openat2(): get rid of useless check, switch to CLASS(filename) Al Viro
2025-12-16 20:08   ` Askar Safin
2025-12-16 20:29     ` Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 28/59] simplify the callers of file_open_name() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 29/59] simplify the callers of do_open_execat() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 30/59] simplify the callers of alloc_bprm() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 31/59] switch {alloc,free}_bprm() to CLASS() Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 32/59] file_[gs]etattr(2): switch to CLASS(filename_maybe_null) Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 33/59] mount_setattr(2): don't mess with LOOKUP_EMPTY Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 34/59] do_open_execat(): don't care about LOOKUP_EMPTY Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 35/59] vfs_open_tree(): use CLASS(filename_uflags) Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 36/59] name_to_handle_at(): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 37/59] fspick(2): use CLASS(filename_flags) Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 38/59] do_fchownat(): unspaghettify a bit Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 39/59] chdir(2): " Al Viro
2025-12-16  3:54 ` [RFC PATCH v3 40/59] do_utimes_path(): switch to CLASS(filename_uflags) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 41/59] do_sys_truncate(): switch to CLASS(filename) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 42/59] do_readlinkat(): switch to CLASS(filename_flags) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 43/59] do_f{chmod,chown,access}at(): use CLASS(filename_uflags) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 44/59] io_openat2(): use CLASS(filename_complete_delayed) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 45/59] io_statx(): " Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 46/59] do_{renameat2,linkat,symlinkat}(): use CLASS(filename_consume) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 47/59] do_{mknodat,mkdirat,unlinkat,rmdir}(): " Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 48/59] namei.c: convert getname_kernel() callers to CLASS(filename_kernel) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 49/59] namei.c: switch user pathname imports to CLASS(filename{,_flags}) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 50/59] filename_...xattr(): don't consume filename reference Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 51/59] move_mount(2): switch to CLASS(filename_maybe_null) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 52/59] chroot(2): switch to CLASS(filename) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 53/59] quotactl_block(): " Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 54/59] statx: switch to CLASS(filename_maybe_null) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 55/59] user_statfs(): switch to CLASS(filename) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 56/59] mqueue: " Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 57/59] ksmbd: use CLASS(filename_kernel) Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 58/59] alpha: switch osf_mount() to strndup_user() Al Viro
2025-12-16  3:55 ` [RFC PATCH v3 59/59] sysfs(2): fs_index() argument is _not_ a pathname Al Viro
2025-12-16  4:32 ` [RFC PATCH v3 00/59] struct filename work Linus Torvalds
2025-12-16  5:23   ` Al Viro

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