diff options
| author | michael <trimarchi@gandalf.sssup.it> | 2008-04-18 13:44:17 -0700 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2008-04-22 12:35:50 +0100 |
| commit | cca15841710da39490abc17f56b55703e3140955 (patch) | |
| tree | 7f91f721d9ad57e188b73db78c011f19f74b284d /fs/jffs2/wbuf.c | |
| parent | 0bc88c59cc2f031a38ad5902d5764497549217c5 (diff) | |
| download | lwn-cca15841710da39490abc17f56b55703e3140955.tar.gz lwn-cca15841710da39490abc17f56b55703e3140955.zip | |
[JFFS2] add write verify on dataflash.
Add the write verification buffer to the dataflash. The mtd_dataflash has
the CONFIG_DATAFLASH_WRITE_VERIFY so is better a change to Kconfig.
Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/jffs2/wbuf.c')
| -rw-r--r-- | fs/jffs2/wbuf.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index d1d4f27464ba..ba49f19cff85 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1236,12 +1236,24 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) { if (!c->wbuf) return -ENOMEM; +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL); + if (!c->wbuf_verify) { + kfree(c->oobbuf); + kfree(c->wbuf); + return -ENOMEM; + } +#endif + printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size); return 0; } void jffs2_dataflash_cleanup(struct jffs2_sb_info *c) { +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + kfree(c->wbuf_verify); +#endif kfree(c->wbuf); } |