bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

introduce fd_file(), convert all accessors to it.

Browse Source 
For any changes of struct fd representation we need to
turn existing accesses to fields into calls of wrappers.
Accesses to struct fd::flags are very few (3 in linux/file.h,
1 in net/socket.c, 3 in fs/overlayfs/file.c and 3 more in
explicit initializers).
	Those can be dealt with in the commit converting to
new layout; accesses to struct fd::file are too many for that.
	This commit converts (almost) all of f.file to
fd_file(f).  It's not entirely mechanical ('file' is used as
a member name more than just in struct fd) and it does not
even attempt to distinguish the uses in pointer context from
those in boolean context; the latter will be eventually turned
into a separate helper (fd_empty()).

	NOTE: mass conversion to fd_empty(), tempting as it
might be, is a bad idea; better do that piecewise in commit
that convert from fdget...() to CLASS(...).

[conflicts in fs/fhandle.c, kernel/bpf/syscall.c, mm/memcontrol.c
caught by git; fs/stat.c one got caught by git grep]
[fs/xattr.c conflict]

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2024-05-31 14:12:01 -04:00
parent 8400291e28
commit 1da91ea87a
83 changed files with 504 additions and 502 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
fs/timerfd.c
View File

@@ -397,9 +397,9 @@ static const struct file_operations timerfd_fops = {
static int timerfd_fget(int fd, struct fd *p)
{
struct fd f = fdget(fd);
if (!f.file)
if (!fd_file(f))
return -EBADF;
if (f.file->f_op != &timerfd_fops) {
if (fd_file(f)->f_op != &timerfd_fops) {
fdput(f);
return -EINVAL;
}
@@ -482,7 +482,7 @@ static int do_timerfd_settime(int ufd, int flags,
ret = timerfd_fget(ufd, &f);
if (ret)
return ret;
ctx = f.file->private_data;
ctx = fd_file(f)->private_data;
if (isalarm(ctx) && !capable(CAP_WAKE_ALARM)) {
fdput(f);
@@ -546,7 +546,7 @@ static int do_timerfd_gettime(int ufd, struct itimerspec64 *t)
int ret = timerfd_fget(ufd, &f);
if (ret)
return ret;
ctx = f.file->private_data;
ctx = fd_file(f)->private_data;
spin_lock_irq(&ctx->wqh.lock);
if (ctx->expired && ctx->tintv) {