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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-02-09 14:43:08 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-02-09 14:43:08 +0100 |
| commit | b4f2d7c3424c00de162c042a5a3a5ed19974677c (patch) | |
| tree | 2783d3212e82f01b53bfb0a408d901918870782e /include/linux/mmzone.h | |
| parent | 788d23930a9724fc85cdf9999521a867d8748019 (diff) | |
| parent | 34d677a90f0682a26327dbefc0db1cf81647e7bc (diff) | |
| download | kernel_replicant_linux-b4f2d7c3424c00de162c042a5a3a5ed19974677c.tar.gz kernel_replicant_linux-b4f2d7c3424c00de162c042a5a3a5ed19974677c.tar.bz2 kernel_replicant_linux-b4f2d7c3424c00de162c042a5a3a5ed19974677c.zip | |
Merge tag 'irqchip-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates for 4.11 from Marc Zyngier
- A number of gic-v3-its cleanups and fixes
- A fix for the MIPS GIC
- One new interrupt controller for the Cortina Gemini platform
- Support for the Qualcomm interrupt combiner, together with
its ACPI goodness
Diffstat (limited to 'include/linux/mmzone.h')
| -rw-r--r-- | include/linux/mmzone.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 36d9896fbc1e..f4aac87adcc3 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -972,12 +972,16 @@ static __always_inline struct zoneref *next_zones_zonelist(struct zoneref *z, * @zonelist - The zonelist to search for a suitable zone * @highest_zoneidx - The zone index of the highest zone to return * @nodes - An optional nodemask to filter the zonelist with - * @zone - The first suitable zone found is returned via this parameter + * @return - Zoneref pointer for the first suitable zone found (see below) * * This function returns the first zone at or below a given zone index that is * within the allowed nodemask. The zoneref returned is a cursor that can be * used to iterate the zonelist with next_zones_zonelist by advancing it by * one before calling. + * + * When no eligible zone is found, zoneref->zone is NULL (zoneref itself is + * never NULL). This may happen either genuinely, or due to concurrent nodemask + * update due to cpuset modification. */ static inline struct zoneref *first_zones_zonelist(struct zonelist *zonelist, enum zone_type highest_zoneidx, |