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authorPintu Kumar <pintu.k@samsung.com>2014-12-18 16:17:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-18 19:08:10 -0800
commit47f8f9297d2247d65ee46d8403a73b30f8d0249b (patch)
treec6119a1597d46d5032bdfb2a67024ea1b952934d /lib/show_mem.c
parente48322abb061d75096fe52d71886b237e7ae7bfb (diff)
downloadlinux-47f8f9297d2247d65ee46d8403a73b30f8d0249b.tar.bz2
fs/proc/meminfo.c: include cma info in proc/meminfo
This patch include CMA info (CMATotal, CMAFree) in /proc/meminfo. Currently, in a CMA enabled system, if somebody wants to know the total CMA size declared, there is no way to tell, other than the dmesg or /var/log/messages logs. With this patch we are showing the CMA info as part of meminfo, so that it can be determined at any point of time. This will be populated only when CMA is enabled. Below is the sample output from a ARM based device with RAM:512MB and CMA:16MB. MemTotal: 471172 kB MemFree: 111712 kB MemAvailable: 271172 kB . . . CmaTotal: 16384 kB CmaFree: 6144 kB This patch also fix below checkpatch errors that were found during these changes. ERROR: space required after that ',' (ctx:ExV) 199: FILE: fs/proc/meminfo.c:199: + ,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10) ^ ERROR: space required after that ',' (ctx:ExV) 202: FILE: fs/proc/meminfo.c:202: + ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) * ^ ERROR: space required after that ',' (ctx:ExV) 206: FILE: fs/proc/meminfo.c:206: + ,K(totalcma_pages) ^ total: 3 errors, 0 warnings, 2 checks, 236 lines checked Signed-off-by: Pintu Kumar <pintu.k@samsung.com> Signed-off-by: Vishnu Pratap Singh <vishnu.ps@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/show_mem.c')
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