summaryrefslogtreecommitdiff
path: root/fs/jffs2
diff options
context:
space:
mode:
Diffstat (limited to 'fs/jffs2')
-rw-r--r--fs/jffs2/debug.h23
-rw-r--r--fs/jffs2/jffs2_fs_sb.h1
-rw-r--r--fs/jffs2/nodelist.h4
-rw-r--r--fs/jffs2/readinode.c16
-rw-r--r--fs/jffs2/super.c32
5 files changed, 57 insertions, 19 deletions
diff --git a/fs/jffs2/debug.h b/fs/jffs2/debug.h
index 4fd9be4cbc98..40e203b6e5c1 100644
--- a/fs/jffs2/debug.h
+++ b/fs/jffs2/debug.h
@@ -13,6 +13,7 @@
#ifndef _JFFS2_DEBUG_H_
#define _JFFS2_DEBUG_H_
+#include <linux/printk.h>
#include <linux/sched.h>
#ifndef CONFIG_JFFS2_FS_DEBUG
@@ -99,73 +100,73 @@ do { \
#ifdef JFFS2_DBG_READINODE_MESSAGES
#define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_readinode(fmt, ...)
+#define dbg_readinode(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
#ifdef JFFS2_DBG_READINODE2_MESSAGES
#define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_readinode2(fmt, ...)
+#define dbg_readinode2(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Fragtree build debugging messages */
#ifdef JFFS2_DBG_FRAGTREE_MESSAGES
#define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_fragtree(fmt, ...)
+#define dbg_fragtree(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
#ifdef JFFS2_DBG_FRAGTREE2_MESSAGES
#define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_fragtree2(fmt, ...)
+#define dbg_fragtree2(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Directory entry list manilulation debugging messages */
#ifdef JFFS2_DBG_DENTLIST_MESSAGES
#define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_dentlist(fmt, ...)
+#define dbg_dentlist(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Print the messages about manipulating node_refs */
#ifdef JFFS2_DBG_NODEREF_MESSAGES
#define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_noderef(fmt, ...)
+#define dbg_noderef(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Manipulations with the list of inodes (JFFS2 inocache) */
#ifdef JFFS2_DBG_INOCACHE_MESSAGES
#define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_inocache(fmt, ...)
+#define dbg_inocache(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Summary debugging messages */
#ifdef JFFS2_DBG_SUMMARY_MESSAGES
#define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_summary(fmt, ...)
+#define dbg_summary(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* File system build messages */
#ifdef JFFS2_DBG_FSBUILD_MESSAGES
#define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_fsbuild(fmt, ...)
+#define dbg_fsbuild(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Watch the object allocations */
#ifdef JFFS2_DBG_MEMALLOC_MESSAGES
#define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_memalloc(fmt, ...)
+#define dbg_memalloc(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* Watch the XATTR subsystem */
#ifdef JFFS2_DBG_XATTR_MESSAGES
#define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__)
#else
-#define dbg_xattr(fmt, ...)
+#define dbg_xattr(fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
/* "Sanity" checks */
diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h
index 778275f48a87..5a7091746f68 100644
--- a/fs/jffs2/jffs2_fs_sb.h
+++ b/fs/jffs2/jffs2_fs_sb.h
@@ -38,6 +38,7 @@ struct jffs2_mount_opts {
* users. This is implemented simply by means of not allowing the
* latter users to write to the file system if the amount if the
* available space is less then 'rp_size'. */
+ bool set_rp_size;
unsigned int rp_size;
};
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index 8ff4d1a1e774..2e98fa277dab 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -349,14 +349,14 @@ static inline struct jffs2_node_frag *frag_last(struct rb_root *root)
#define frag_parent(frag) rb_entry(rb_parent(&(frag)->rb), struct jffs2_node_frag, rb)
#define frag_left(frag) rb_entry((frag)->rb.rb_left, struct jffs2_node_frag, rb)
#define frag_right(frag) rb_entry((frag)->rb.rb_right, struct jffs2_node_frag, rb)
-#define frag_erase(frag, list) rb_erase(&frag->rb, list);
+#define frag_erase(frag, list) rb_erase(&frag->rb, list)
#define tn_next(tn) rb_entry(rb_next(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
#define tn_prev(tn) rb_entry(rb_prev(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
#define tn_parent(tn) rb_entry(rb_parent(&(tn)->rb), struct jffs2_tmp_dnode_info, rb)
#define tn_left(tn) rb_entry((tn)->rb.rb_left, struct jffs2_tmp_dnode_info, rb)
#define tn_right(tn) rb_entry((tn)->rb.rb_right, struct jffs2_tmp_dnode_info, rb)
-#define tn_erase(tn, list) rb_erase(&tn->rb, list);
+#define tn_erase(tn, list) rb_erase(&tn->rb, list)
#define tn_last(list) rb_entry(rb_last(list), struct jffs2_tmp_dnode_info, rb)
#define tn_first(list) rb_entry(rb_first(list), struct jffs2_tmp_dnode_info, rb)
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 2f6f0b140c05..03b4f99614be 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -672,6 +672,22 @@ static inline int read_direntry(struct jffs2_sb_info *c, struct jffs2_raw_node_r
jffs2_free_full_dirent(fd);
return -EIO;
}
+
+#ifdef CONFIG_JFFS2_SUMMARY
+ /*
+ * we use CONFIG_JFFS2_SUMMARY because without it, we
+ * have checked it while mounting
+ */
+ crc = crc32(0, fd->name, rd->nsize);
+ if (unlikely(crc != je32_to_cpu(rd->name_crc))) {
+ JFFS2_NOTICE("name CRC failed on dirent node at"
+ "%#08x: read %#08x,calculated %#08x\n",
+ ref_offset(ref), je32_to_cpu(rd->node_crc), crc);
+ jffs2_mark_node_obsolete(c, ref);
+ jffs2_free_full_dirent(fd);
+ return 0;
+ }
+#endif
}
fd->nhash = full_name_hash(NULL, fd->name, rd->nsize);
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 05d7878dfad1..81ca58c10b72 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -88,7 +88,7 @@ static int jffs2_show_options(struct seq_file *s, struct dentry *root)
if (opts->override_compr)
seq_printf(s, ",compr=%s", jffs2_compr_name(opts->compr));
- if (opts->rp_size)
+ if (opts->set_rp_size)
seq_printf(s, ",rp_size=%u", opts->rp_size / 1024);
return 0;
@@ -202,11 +202,8 @@ static int jffs2_parse_param(struct fs_context *fc, struct fs_parameter *param)
case Opt_rp_size:
if (result.uint_32 > UINT_MAX / 1024)
return invalf(fc, "jffs2: rp_size unrepresentable");
- opt = result.uint_32 * 1024;
- if (opt > c->mtd->size)
- return invalf(fc, "jffs2: Too large reserve pool specified, max is %llu KB",
- c->mtd->size / 1024);
- c->mount_opts.rp_size = opt;
+ c->mount_opts.rp_size = result.uint_32 * 1024;
+ c->mount_opts.set_rp_size = true;
break;
default:
return -EINVAL;
@@ -215,11 +212,30 @@ static int jffs2_parse_param(struct fs_context *fc, struct fs_parameter *param)
return 0;
}
+static inline void jffs2_update_mount_opts(struct fs_context *fc)
+{
+ struct jffs2_sb_info *new_c = fc->s_fs_info;
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(fc->root->d_sb);
+
+ mutex_lock(&c->alloc_sem);
+ if (new_c->mount_opts.override_compr) {
+ c->mount_opts.override_compr = new_c->mount_opts.override_compr;
+ c->mount_opts.compr = new_c->mount_opts.compr;
+ }
+ if (new_c->mount_opts.set_rp_size) {
+ c->mount_opts.set_rp_size = new_c->mount_opts.set_rp_size;
+ c->mount_opts.rp_size = new_c->mount_opts.rp_size;
+ }
+ mutex_unlock(&c->alloc_sem);
+}
+
static int jffs2_reconfigure(struct fs_context *fc)
{
struct super_block *sb = fc->root->d_sb;
sync_filesystem(sb);
+ jffs2_update_mount_opts(fc);
+
return jffs2_do_remount_fs(sb, fc);
}
@@ -249,6 +265,10 @@ static int jffs2_fill_super(struct super_block *sb, struct fs_context *fc)
c->mtd = sb->s_mtd;
c->os_priv = sb;
+ if (c->mount_opts.rp_size > c->mtd->size)
+ return invalf(fc, "jffs2: Too large reserve pool specified, max is %llu KB",
+ c->mtd->size / 1024);
+
/* Initialize JFFS2 superblock locks, the further initialization will
* be done later */
mutex_init(&c->alloc_sem);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-14 01:33:41 +0300