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-rw-r--r--fs/ubifs/compress.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/fs/ubifs/compress.c b/fs/ubifs/compress.c
index a0ada596b17c..11e4132f314a 100644
--- a/fs/ubifs/compress.c
+++ b/fs/ubifs/compress.c
@@ -33,7 +33,7 @@
/* Fake description object for the "none" compressor */
static struct ubifs_compressor none_compr = {
.compr_type = UBIFS_COMPR_NONE,
- .name = "no compression",
+ .name = "none",
.capi_name = "",
};
@@ -43,13 +43,13 @@ static DEFINE_MUTEX(lzo_mutex);
static struct ubifs_compressor lzo_compr = {
.compr_type = UBIFS_COMPR_LZO,
.comp_mutex = &lzo_mutex,
- .name = "LZO",
+ .name = "lzo",
.capi_name = "lzo",
};
#else
static struct ubifs_compressor lzo_compr = {
.compr_type = UBIFS_COMPR_LZO,
- .name = "LZO",
+ .name = "lzo",
};
#endif
@@ -108,7 +108,7 @@ void ubifs_compress(const void *in_buf, int in_len, void *out_buf, int *out_len,
if (compr->comp_mutex)
mutex_lock(compr->comp_mutex);
err = crypto_comp_compress(compr->cc, in_buf, in_len, out_buf,
- out_len);
+ (unsigned int *)out_len);
if (compr->comp_mutex)
mutex_unlock(compr->comp_mutex);
if (unlikely(err)) {
@@ -119,10 +119,10 @@ void ubifs_compress(const void *in_buf, int in_len, void *out_buf, int *out_len,
}
/*
- * Presently, we just require that compression results in less data,
- * rather than any defined minimum compression ratio or amount.
+ * If the data compressed only slightly, it is better to leave it
+ * uncompressed to improve read speed.
*/
- if (ALIGN(*out_len, 8) >= ALIGN(in_len, 8))
+ if (in_len - *out_len < UBIFS_MIN_COMPRESS_DIFF)
goto no_compr;
return;
@@ -172,7 +172,7 @@ int ubifs_decompress(const void *in_buf, int in_len, void *out_buf,
if (compr->decomp_mutex)
mutex_lock(compr->decomp_mutex);
err = crypto_comp_decompress(compr->cc, in_buf, in_len, out_buf,
- out_len);
+ (unsigned int *)out_len);
if (compr->decomp_mutex)
mutex_unlock(compr->decomp_mutex);
if (err)
@@ -244,7 +244,7 @@ out_lzo:
/**
* ubifs_compressors_exit - de-initialize UBIFS compressors.
*/
-void __exit ubifs_compressors_exit(void)
+void ubifs_compressors_exit(void)
{
compr_exit(&lzo_compr);
compr_exit(&zlib_compr);