diff options
author | Glenn Elliott <gelliott@cs.unc.edu> | 2012-03-04 19:47:13 -0500 |
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committer | Glenn Elliott <gelliott@cs.unc.edu> | 2012-03-04 19:47:13 -0500 |
commit | c71c03bda1e86c9d5198c5d83f712e695c4f2a1e (patch) | |
tree | ecb166cb3e2b7e2adb3b5e292245fefd23381ac8 /usr/Kconfig | |
parent | ea53c912f8a86a8567697115b6a0d8152beee5c8 (diff) | |
parent | 6a00f206debf8a5c8899055726ad127dbeeed098 (diff) |
Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp
Conflicts:
litmus/sched_cedf.c
Diffstat (limited to 'usr/Kconfig')
-rw-r--r-- | usr/Kconfig | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/usr/Kconfig b/usr/Kconfig index e2721f5a3504..65b845bd4e3e 100644 --- a/usr/Kconfig +++ b/usr/Kconfig | |||
@@ -46,7 +46,7 @@ config INITRAMFS_ROOT_GID | |||
46 | If you are not sure, leave it set to "0". | 46 | If you are not sure, leave it set to "0". |
47 | 47 | ||
48 | config RD_GZIP | 48 | config RD_GZIP |
49 | bool "Support initial ramdisks compressed using gzip" if EMBEDDED | 49 | bool "Support initial ramdisks compressed using gzip" if EXPERT |
50 | default y | 50 | default y |
51 | depends on BLK_DEV_INITRD | 51 | depends on BLK_DEV_INITRD |
52 | select DECOMPRESS_GZIP | 52 | select DECOMPRESS_GZIP |
@@ -55,8 +55,8 @@ config RD_GZIP | |||
55 | If unsure, say Y. | 55 | If unsure, say Y. |
56 | 56 | ||
57 | config RD_BZIP2 | 57 | config RD_BZIP2 |
58 | bool "Support initial ramdisks compressed using bzip2" if EMBEDDED | 58 | bool "Support initial ramdisks compressed using bzip2" if EXPERT |
59 | default !EMBEDDED | 59 | default !EXPERT |
60 | depends on BLK_DEV_INITRD | 60 | depends on BLK_DEV_INITRD |
61 | select DECOMPRESS_BZIP2 | 61 | select DECOMPRESS_BZIP2 |
62 | help | 62 | help |
@@ -64,17 +64,26 @@ config RD_BZIP2 | |||
64 | If unsure, say N. | 64 | If unsure, say N. |
65 | 65 | ||
66 | config RD_LZMA | 66 | config RD_LZMA |
67 | bool "Support initial ramdisks compressed using LZMA" if EMBEDDED | 67 | bool "Support initial ramdisks compressed using LZMA" if EXPERT |
68 | default !EMBEDDED | 68 | default !EXPERT |
69 | depends on BLK_DEV_INITRD | 69 | depends on BLK_DEV_INITRD |
70 | select DECOMPRESS_LZMA | 70 | select DECOMPRESS_LZMA |
71 | help | 71 | help |
72 | Support loading of a LZMA encoded initial ramdisk or cpio buffer | 72 | Support loading of a LZMA encoded initial ramdisk or cpio buffer |
73 | If unsure, say N. | 73 | If unsure, say N. |
74 | 74 | ||
75 | config RD_XZ | ||
76 | bool "Support initial ramdisks compressed using XZ" if EXPERT | ||
77 | default !EXPERT | ||
78 | depends on BLK_DEV_INITRD | ||
79 | select DECOMPRESS_XZ | ||
80 | help | ||
81 | Support loading of a XZ encoded initial ramdisk or cpio buffer. | ||
82 | If unsure, say N. | ||
83 | |||
75 | config RD_LZO | 84 | config RD_LZO |
76 | bool "Support initial ramdisks compressed using LZO" if EMBEDDED | 85 | bool "Support initial ramdisks compressed using LZO" if EXPERT |
77 | default !EMBEDDED | 86 | default !EXPERT |
78 | depends on BLK_DEV_INITRD | 87 | depends on BLK_DEV_INITRD |
79 | select DECOMPRESS_LZO | 88 | select DECOMPRESS_LZO |
80 | help | 89 | help |
@@ -139,12 +148,21 @@ config INITRAMFS_COMPRESSION_LZMA | |||
139 | three. Compression is slowest. The initramfs size is about 33% | 148 | three. Compression is slowest. The initramfs size is about 33% |
140 | smaller with LZMA in comparison to gzip. | 149 | smaller with LZMA in comparison to gzip. |
141 | 150 | ||
151 | config INITRAMFS_COMPRESSION_XZ | ||
152 | bool "XZ" | ||
153 | depends on RD_XZ | ||
154 | help | ||
155 | XZ uses the LZMA2 algorithm. The initramfs size is about 30% | ||
156 | smaller with XZ in comparison to gzip. Decompression speed | ||
157 | is better than that of bzip2 but worse than gzip and LZO. | ||
158 | Compression is slow. | ||
159 | |||
142 | config INITRAMFS_COMPRESSION_LZO | 160 | config INITRAMFS_COMPRESSION_LZO |
143 | bool "LZO" | 161 | bool "LZO" |
144 | depends on RD_LZO | 162 | depends on RD_LZO |
145 | help | 163 | help |
146 | Its compression ratio is the poorest among the four. The kernel | 164 | Its compression ratio is the poorest among the four. The kernel |
147 | size is about about 10% bigger than gzip; however its speed | 165 | size is about 10% bigger than gzip; however its speed |
148 | (both compression and decompression) is the fastest. | 166 | (both compression and decompression) is the fastest. |
149 | 167 | ||
150 | endchoice | 168 | endchoice |