| Message ID | 20241031040952.109057-11-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | Add support for binding ACPI platform profile to multiple drivers | expand |
On Wed, 30 Oct 2024, Mario Limonciello wrote: > Migrate away from using an interruptible mutex to scoped_cond_guard. > Also move the sysfs string match out of the mutex as it's not needed. > > Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> I'd have expected all the mutex_lock_interruptible() -> scoped_cond_guard() changes in the same patch. Although this also moves the sysfs stuff out which in this smaller form is kind of okay but if it's part of larger patch merging all scoped guard conversions, it should be in a different change.
On 10/31/2024 05:15, Ilpo Järvinen wrote: > On Wed, 30 Oct 2024, Mario Limonciello wrote: > >> Migrate away from using an interruptible mutex to scoped_cond_guard. >> Also move the sysfs string match out of the mutex as it's not needed. >> >> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> > > I'd have expected all the mutex_lock_interruptible() -> > scoped_cond_guard() changes in the same patch. Although this also moves > the sysfs stuff out which in this smaller form is kind of okay but if it's > part of larger patch merging all scoped guard conversions, it should be > in a different change. > OK for the next version I'll merge all the mutex changes to the same patch but split the sysfs change to it's own.
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c index b48dd34301f13..63a5f5ac33898 100644 --- a/drivers/acpi/platform_profile.c +++ b/drivers/acpi/platform_profile.c @@ -75,35 +75,25 @@ static ssize_t platform_profile_store(struct device *dev, { int err, i; - err = mutex_lock_interruptible(&profile_lock); - if (err) - return err; - - if (!cur_profile) { - mutex_unlock(&profile_lock); - return -ENODEV; - } - /* Scan for a matching profile */ i = sysfs_match_string(profile_names, buf); - if (i < 0) { - mutex_unlock(&profile_lock); + if (i < 0) return -EINVAL; - } - /* Check that platform supports this profile choice */ - if (!test_bit(i, cur_profile->choices)) { - mutex_unlock(&profile_lock); - return -EOPNOTSUPP; - } + scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) { + if (!cur_profile) + return -ENODEV; - err = cur_profile->profile_set(cur_profile, i); - if (!err) - sysfs_notify(acpi_kobj, NULL, "platform_profile"); + /* Check that platform supports this profile choice */ + if (!test_bit(i, cur_profile->choices)) + return -EOPNOTSUPP; - mutex_unlock(&profile_lock); - if (err) - return err; + err = cur_profile->profile_set(cur_profile, i); + if (err) + return err; + } + + sysfs_notify(acpi_kobj, NULL, "platform_profile"); return count; }
Migrate away from using an interruptible mutex to scoped_cond_guard. Also move the sysfs string match out of the mutex as it's not needed. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> --- drivers/acpi/platform_profile.c | 36 ++++++++++++--------------------- 1 file changed, 13 insertions(+), 23 deletions(-)