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merge missing updates to squashfs lzma support from 2.6.30 to 2.6.31

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17686 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-09-23 13:32:13 +00:00
parent 704ba3690d
commit 0f073edc52
1 changed files with 38 additions and 8 deletions
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46
target/linux/generic-2.6/patches-2.6.31/053-squashfs_lzma.patch
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@ -47,7 +47,7 @@
__le32 s_magic;
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -48,13 +48,65 @@
@@ -48,13 +48,76 @@
#include "squashfs.h"
@ -81,7 +81,7 @@
+ crypto_free_pcomp(msblk->tfm);
+ }
+#endif
+
+ return err;
+}
+
@ -90,6 +90,17 @@
+ int err = -EOPNOTSUPP;
+
+#ifdef CONFIG_SQUASHFS_SUPPORT_LZMA
+ struct {
+ struct nlattr nla;
+ int val;
+ } params = {
+ .nla = {
+ .nla_len = nla_attr_size(sizeof(int)),
+ .nla_type = UNLZMA_DECOMP_OUT_BUFFERS,
+ },
+ .val = (msblk->block_size / PAGE_CACHE_SIZE) + 1
+ };
+ msblk->tfm = crypto_alloc_pcomp("lzma", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(msblk->tfm)) {
@ -97,7 +108,7 @@
+ return PTR_ERR(msblk->tfm);
+ }
+
+ err = crypto_decompress_setup(msblk->tfm, NULL, 0);
+ err = crypto_decompress_setup(msblk->tfm, &params, sizeof(params));
+ if (err) {
+ ERROR("Failed to set up decompression parameters\n");
+ crypto_free_pcomp(msblk->tfm);
@ -115,7 +126,7 @@
{
if (major < SQUASHFS_MAJOR) {
ERROR("Major/Minor mismatch, older Squashfs %d.%d "
@@ -67,9 +119,6 @@ static int supported_squashfs_filesystem
@@ -67,9 +130,6 @@ static int supported_squashfs_filesystem
return -EINVAL;
}
@ -125,7 +136,7 @@
return 0;
}
@@ -84,16 +133,6 @@ static int squashfs_fill_super(struct su
@@ -84,16 +144,6 @@ static int squashfs_fill_super(struct su
unsigned short flags;
unsigned int fragments;
u64 lookup_table_start;
@ -142,7 +153,7 @@
int err;
TRACE("Entered squashfs_fill_superblock\n");
@@ -105,21 +144,6 @@ static int squashfs_fill_super(struct su
@@ -105,21 +155,6 @@ static int squashfs_fill_super(struct su
}
msblk = sb->s_fs_info;
@ -164,8 +175,15 @@
sblk = kzalloc(sizeof(*sblk), GFP_KERNEL);
if (sblk == NULL) {
ERROR("Failed to allocate squashfs_super_block\n");
@@ -159,8 +183,21 @@ static int squashfs_fill_super(struct su
@@ -157,10 +192,28 @@ static int squashfs_fill_super(struct su
goto failed_mount;
}
+ /* Check block size for sanity */
+ msblk->block_size = le32_to_cpu(sblk->block_size);
+ if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
+ goto failed_mount;
+
/* Check the MAJOR & MINOR versions and compression type */
err = supported_squashfs_filesystem(le16_to_cpu(sblk->s_major),
- le16_to_cpu(sblk->s_minor),
@ -188,7 +206,19 @@
if (err < 0)
goto failed_mount;
@@ -316,21 +353,16 @@ allocate_root:
@@ -180,11 +233,6 @@ static int squashfs_fill_super(struct su
i_size_read(sb->s_bdev->bd_inode))
goto failed_mount;
- /* Check block size for sanity */
- msblk->block_size = le32_to_cpu(sblk->block_size);
- if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
- goto failed_mount;
-
/*
* Check the system page size is not larger than the filesystem
* block size (by default 128K). This is currently not supported.
@@ -316,21 +364,16 @@ allocate_root:
return 0;
failed_mount: