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ee894b18e0
The 'pwrdm_for_each()' function walks powerdomains with a spinlock locked, so the the callbacks cannot do anything which may sleep. This patch introduces a 'pwrdm_for_each_nolock()' helper which does the same, but without the spinlock locked. This fixes the following lockdep warning: [ 0.000000] WARNING: at kernel/lockdep.c:2460 lockdep_trace_alloc+0xac/0xec() [ 0.000000] Modules linked in: (unwind_backtrace+0x0/0xdc) from [<c0045464>] (warn_slowpath_common+0x48/0x60) (warn_slowpath_common+0x48/0x60) from [<c0067dd4>] (lockdep_trace_alloc+0xac/0xec) (lockdep_trace_alloc+0xac/0xec) from [<c009da14>] (kmem_cache_alloc+0x1c/0xd0) (kmem_cache_alloc+0x1c/0xd0) from [<c00b21d8>] (d_alloc+0x1c/0x1a4) (d_alloc+0x1c/0x1a4) from [<c00a887c>] (__lookup_hash+0xd8/0x118) (__lookup_hash+0xd8/0x118) from [<c00a9f20>] (lookup_one_len+0x84/0x94) (lookup_one_len+0x84/0x94) from [<c010d12c>] (debugfs_create_file+0x8c/0x20c) (debugfs_create_file+0x8c/0x20c) from [<c010d320>] (debugfs_create_dir+0x1c/0x20) (debugfs_create_dir+0x1c/0x20) from [<c000e8cc>] (pwrdms_setup+0x60/0x90) (pwrdms_setup+0x60/0x90) from [<c002e010>] (pwrdm_for_each+0x30/0x80) (pwrdm_for_each+0x30/0x80) from [<c000e79c>] (pm_dbg_init+0x7c/0x14c) (pm_dbg_init+0x7c/0x14c) from [<c00232b4>] (do_one_initcall+0x5c/0x1b8) (do_one_initcall+0x5c/0x1b8) from [<c00083f8>] (kernel_init+0x90/0x10c) (kernel_init+0x90/0x10c) from [<c00242c4>] (kernel_thread_exit+0x0/0x8) Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> |
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| .. | ||
| boot | ||
| common | ||
| configs | ||
| include/asm | ||
| kernel | ||
| lib | ||
| mach-aaec2000 | ||
| mach-at91 | ||
| mach-bcmring | ||
| mach-clps711x | ||
| mach-davinci | ||
| mach-ebsa110 | ||
| mach-ep93xx | ||
| mach-footbridge | ||
| mach-gemini | ||
| mach-h720x | ||
| mach-integrator | ||
| mach-iop13xx | ||
| mach-iop32x | ||
| mach-iop33x | ||
| mach-ixp4xx | ||
| mach-ixp23xx | ||
| mach-ixp2000 | ||
| mach-kirkwood | ||
| mach-ks8695 | ||
| mach-l7200 | ||
| mach-lh7a40x | ||
| mach-loki | ||
| mach-mmp | ||
| mach-msm | ||
| mach-mv78xx0 | ||
| mach-mx1 | ||
| mach-mx2 | ||
| mach-mx3 | ||
| mach-mx25 | ||
| mach-mxc91231 | ||
| mach-netx | ||
| mach-nomadik | ||
| mach-ns9xxx | ||
| mach-omap1 | ||
| mach-omap2 | ||
| mach-orion5x | ||
| mach-pnx4008 | ||
| mach-pxa | ||
| mach-realview | ||
| mach-rpc | ||
| mach-s3c24a0/include/mach | ||
| mach-s3c2400 | ||
| mach-s3c2410 | ||
| mach-s3c2412 | ||
| mach-s3c2440 | ||
| mach-s3c2442 | ||
| mach-s3c2443 | ||
| mach-s3c6400 | ||
| mach-s3c6410 | ||
| mach-s5pc100 | ||
| mach-sa1100 | ||
| mach-shark | ||
| mach-stmp37xx | ||
| mach-stmp378x | ||
| mach-u300 | ||
| mach-versatile | ||
| mach-w90x900 | ||
| mm | ||
| nwfpe | ||
| oprofile | ||
| plat-iop | ||
| plat-mxc | ||
| plat-omap | ||
| plat-orion | ||
| plat-pxa | ||
| plat-s3c | ||
| plat-s3c24xx | ||
| plat-s3c64xx | ||
| plat-s5pc1xx | ||
| plat-stmp3xxx | ||
| tools | ||
| vfp | ||
| Kconfig | ||
| Kconfig-nommu | ||
| Kconfig.debug | ||
| Makefile | ||