On 11/12/19 9:39 PM, Sourabh Jain wrote: > Add missing ABI documentation for existing FADump sysfs files. > > Signed-off-by: Sourabh Jain <sourabhjain@xxxxxxxxxxxxx> The patch series adds a new sysfs attribute that provides the amount of memory reserved for FADump. It also streamlines FADump specific sysfs interfaces. Thanks for looking into this. For the series... Reviewed-by: Hari Bathini <hbathini@xxxxxxxxxxxxx> > --- > Documentation/ABI/testing/sysfs-kernel-fadump_enabled | 7 +++++++ > Documentation/ABI/testing/sysfs-kernel-fadump_registered | 8 ++++++++ > Documentation/ABI/testing/sysfs-kernel-fadump_release_mem | 8 ++++++++ > .../ABI/testing/sysfs-kernel-fadump_release_opalcore | 7 +++++++ > 4 files changed, 30 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-kernel-fadump_enabled > create mode 100644 Documentation/ABI/testing/sysfs-kernel-fadump_registered > create mode 100644 Documentation/ABI/testing/sysfs-kernel-fadump_release_mem > create mode 100644 Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore > > diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_enabled b/Documentation/ABI/testing/sysfs-kernel-fadump_enabled > new file mode 100644 > index 000000000000..f73632b1c006 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-kernel-fadump_enabled > @@ -0,0 +1,7 @@ > +What: /sys/kernel/fadump_enabled > +Date: Feb 2012 > +Contact: linuxppc-dev@xxxxxxxxxxxxxxxx > +Description: read only > + Primarily used to identify whether the FADump is enabled in > + the kernel or not. > +User: Kdump service > diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_registered b/Documentation/ABI/testing/sysfs-kernel-fadump_registered > new file mode 100644 > index 000000000000..dcf925e53f0f > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-kernel-fadump_registered > @@ -0,0 +1,8 @@ > +What: /sys/kernel/fadump_registered > +Date: Feb 2012 > +Contact: linuxppc-dev@xxxxxxxxxxxxxxxx > +Description: read/write > + Helps to control the dump collect feature from userspace. > + Setting 1 to this file enables the system to collect the > + dump and 0 to disable it. > +User: Kdump service > diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_release_mem b/Documentation/ABI/testing/sysfs-kernel-fadump_release_mem > new file mode 100644 > index 000000000000..9c20d64ab48d > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-kernel-fadump_release_mem > @@ -0,0 +1,8 @@ > +What: /sys/kernel/fadump_release_mem > +Date: Feb 2012 > +Contact: linuxppc-dev@xxxxxxxxxxxxxxxx > +Description: write only > + This is a special sysfs file and only available when > + the system is booted to capture the vmcore using FADump. > + It is used to release the memory reserved by FADump to > + save the crash dump. > diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore b/Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore > new file mode 100644 > index 000000000000..53313c1d4e7a > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore > @@ -0,0 +1,7 @@ > +What: /sys/kernel/fadump_release_opalcore > +Date: Sep 2019 > +Contact: linuxppc-dev@xxxxxxxxxxxxxxxx > +Description: write only > + The sysfs file is available when the system is booted to > + collect the dump on OPAL based machine. It used to release > + the memory used to collect the opalcore. > -- - Hari
