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author | Artem Bityutskiy <dedekind@infradead.org> | 2006-10-04 19:15:21 +0300 |
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committer | Frank Haverkamp <haver@vnet.ibm.com> | 2007-04-27 14:24:08 +0300 |
commit | 0029da3bf430eea498eee8cef5933f9214534b8a (patch) | |
tree | 8fd93094f370e5bde1640df97764ac56d3f118ba /fs/jffs2/wbuf.c | |
parent | 801c135ce73d5df1caf3eca35b66a10824ae0707 (diff) | |
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JFFS2: add UBI support
This patch make JFFS2 able to work with UBI volumes via the emulated MTD
devices which are directly mapped to these volumes.
Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
Diffstat (limited to 'fs/jffs2/wbuf.c')
-rw-r--r-- | fs/jffs2/wbuf.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 4fac6dd5395..ab86031b3c0 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1208,3 +1208,27 @@ int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) { void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) { kfree(c->wbuf); } + +int jffs2_ubivol_setup(struct jffs2_sb_info *c) { + c->cleanmarker_size = 0; + + if (c->mtd->writesize == 1) + /* We do not need write-buffer */ + return 0; + + init_rwsem(&c->wbuf_sem); + + c->wbuf_pagesize = c->mtd->writesize; + c->wbuf_ofs = 0xFFFFFFFF; + c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL); + if (!c->wbuf) + return -ENOMEM; + + printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size); + + return 0; +} + +void jffs2_ubivol_cleanup(struct jffs2_sb_info *c) { + kfree(c->wbuf); +} |