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| author |   Sudeep Holla <sudeep.holla@arm.com> | 2014-09-30 14:48:22 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-07 11:45:00 -0800 |
| commit | 5aaba36318e5995e8c95d077a46d9a4d00fcc1cd (patch) | |
| tree | edf9eb1ea758b82f1f04963a0fc54fab8bc8bc50 /include/linux/bitmap.h | |
| parent | driver core: Fix unbalanced device reference in drivers_probe (diff) | |
| download | wireguard-linux-5aaba36318e5995e8c95d077a46d9a4d00fcc1cd.tar.xz wireguard-linux-5aaba36318e5995e8c95d077a46d9a4d00fcc1cd.zip | |
cpumask: factor out show_cpumap into separate helper function
Many sysfs *_show function use cpu{list,mask}_scnprintf to copy cpumap
to the buffer aligned to PAGE_SIZE, append '\n' and '\0' to return null
terminated buffer with newline.
This patch creates a new helper function cpumap_print_to_pagebuf in
cpumask.h using newly added bitmap_print_to_pagebuf and consolidates
most of those sysfs functions using the new helper function.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: x86@kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index e1c8d080c427..9d5c3224a1e2 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -60,6 +60,7 @@ * bitmap_find_free_region(bitmap, bits, order) Find and allocate bit region * bitmap_release_region(bitmap, pos, order) Free specified bit region * bitmap_allocate_region(bitmap, pos, order) Allocate specified bit region + * bitmap_print_to_pagebuf(list, buf, mask, nbits) Print bitmap src as list/hex */ /* @@ -145,6 +146,8 @@ extern void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int o extern int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order); extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits); extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits); +extern int bitmap_print_to_pagebuf(bool list, char *buf, + const unsigned long *maskp, int nmaskbits); #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG)) #define BITMAP_LAST_WORD_MASK(nbits) \ |