Patchset related to hibernation resume:
- enhancement to make the use of an existing resume file more general
- add kstrdup_trimnl function which duplicates and trims a single
trailing newline off of a string
- cleanup checkpatch warnings in hibernate.c file
All patches are based on the 3.13 tag. This was tested on a
Beaglebone black with partial hibernation support, and compiled for
x86_64.
[PATCH v7 1/3] mm: add kstrdup_trimnl function
include/linux/string.h | 1 +
mm/util.c | 29 +++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
Adds the kstrdup_trimnl function to duplicate and trim
at most one trailing newline from a string.
This is useful for working with user input to sysfs.
[PATCH v7 2/3] trivial: PM / Hibernate: clean up checkpatch in
kernel/power/hibernate.c | 62 ++++++++++++++++++++++++----------------------
1 file changed, 32 insertions(+), 30 deletions(-)
Cleanup checkpatch warnings in kernel/power/hibernate.c
[PATCH v7 3/3] PM / Hibernate: use name_to_dev_t to parse resume
kernel/power/hibernate.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
Use name_to_dev_t to parse the /sys/power/resume file making the
syntax more flexible. It supports the previous use syntax
and additionally can support other formats such as
/dev/devicenode and UUID= formats.
By changing /sys/debug/resume to accept the same syntax as
the resume=device parameter, we can parse the resume=device
in the initrd init script and use the resume device directly
from the kernel command line.
Changes in v7:
--------------
* Switch to trim only one trailing newline if present using kstrdup_trimnl
* remove kstrimdup patch
* add kstrdup_trimnl patch
* Add clean up patch for kernel/power/hibernate.c checkpatch warnings
Changes in v6:
--------------
* Revert tricky / confusing while loop indexing
Changes in v5:
--------------
* Change kstrimdup to minimize allocated memory. Now allocates only
the memory needed for the string instead of using strim.
Changes in v4:
--------------
* Dropped name_to_dev_t rework in favor of adding kstrimdup
* adjusted resume_store
Changes in v3:
--------------
* Dropped documentation patch as it went in through trivial
* Added patch for name_to_dev_t to support directly parsing userspace
buffer
Changes in v2:
--------------
* Added check for null return of kstrndup in hibernate.c
Thanks,
Sebastian
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