Commit 9fe4854c authored by David Woodhouse's avatar David Woodhouse

[JFFS2] Remove flash offset argument from various functions.

We don't need the upper layers to deal with the physical offset. It's
_always_ c->nextblock->offset + c->sector_size - c->nextblock->free_size
so we might as well just let the actual write functions deal with that.
Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
parent 5fa43394
......@@ -308,7 +308,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
int namelen;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret, targetlen = strlen(target);
/* FIXME: If you care. We'd need to use frags for the target
......@@ -327,8 +327,8 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
......@@ -356,7 +356,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
ri->data_crc = cpu_to_je32(crc32(0, target, targetlen));
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
fn = jffs2_write_dnode(c, f, ri, target, targetlen, phys_ofs, ALLOC_NORMAL);
fn = jffs2_write_dnode(c, f, ri, target, targetlen, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
......@@ -400,8 +400,8 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
return ret;
}
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
......@@ -433,7 +433,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally
......@@ -471,7 +471,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
int namelen;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
mode |= S_IFDIR;
......@@ -486,8 +486,8 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL,
JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space(c, sizeof(*ri), &alloclen, ALLOC_NORMAL,
JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
......@@ -512,7 +512,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
ri->data_crc = cpu_to_je32(0);
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
fn = jffs2_write_dnode(c, f, ri, NULL, 0, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
......@@ -542,8 +542,8 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
return ret;
}
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
......@@ -575,7 +575,7 @@ static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally
......@@ -631,7 +631,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
int namelen;
union jffs2_device_node dev;
int devlen = 0;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
if (!new_valid_dev(rdev))
......@@ -650,7 +650,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &phys_ofs, &alloclen,
ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
......@@ -678,7 +678,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
ri->data_crc = cpu_to_je32(crc32(0, &dev, devlen));
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, phys_ofs, ALLOC_NORMAL);
fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
......@@ -708,8 +708,8 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
return ret;
}
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
/* Eep. */
jffs2_clear_inode(inode);
......@@ -744,7 +744,7 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, de
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, ALLOC_NORMAL);
if (IS_ERR(fd)) {
/* dirent failed to write. Delete the inode normally
......
......@@ -134,13 +134,13 @@ static int jffs2_prepare_write (struct file *filp, struct page *pg,
struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
struct jffs2_raw_inode ri;
struct jffs2_full_dnode *fn;
uint32_t phys_ofs, alloc_len;
uint32_t alloc_len;
D1(printk(KERN_DEBUG "Writing new hole frag 0x%x-0x%x between current EOF and new page\n",
(unsigned int)inode->i_size, pageofs));
ret = jffs2_reserve_space(c, sizeof(ri), &phys_ofs, &alloc_len,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret)
return ret;
......@@ -166,7 +166,7 @@ static int jffs2_prepare_write (struct file *filp, struct page *pg,
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
ri.data_crc = cpu_to_je32(0);
fn = jffs2_write_dnode(c, f, &ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
fn = jffs2_write_dnode(c, f, &ri, NULL, 0, ALLOC_NORMAL);
if (IS_ERR(fn)) {
ret = PTR_ERR(fn);
......
......@@ -37,7 +37,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
unsigned char *mdata = NULL;
int mdatalen = 0;
unsigned int ivalid;
uint32_t phys_ofs, alloclen;
uint32_t alloclen;
int ret;
D1(printk(KERN_DEBUG "jffs2_setattr(): ino #%lu\n", inode->i_ino));
ret = inode_change_ok(inode, iattr);
......@@ -79,8 +79,8 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
return -ENOMEM;
}
ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &phys_ofs, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space(c, sizeof(*ri) + mdatalen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
jffs2_free_raw_inode(ri);
if (S_ISLNK(inode->i_mode & S_IFMT))
......@@ -131,7 +131,7 @@ static int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
else
ri->data_crc = cpu_to_je32(0);
new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, phys_ofs, ALLOC_NORMAL);
new_metadata = jffs2_write_dnode(c, f, ri, mdata, mdatalen, ALLOC_NORMAL);
if (S_ISLNK(inode->i_mode))
kfree(mdata);
......
......@@ -545,7 +545,7 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
if (ic && alloclen > sizeof(struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN)
alloclen = sizeof(struct jffs2_raw_inode) + JFFS2_MIN_DATA_LEN;
ret = jffs2_reserve_space_gc(c, alloclen, &phys_ofs, &alloclen, rawlen);
ret = jffs2_reserve_space_gc(c, alloclen, &alloclen, rawlen);
/* 'rawlen' is not the exact summary size; it is only an upper estimation */
if (ret)
......@@ -626,13 +626,13 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
/* OK, all the CRCs are good; this node can just be copied as-is. */
retry:
nraw->flash_offset = phys_ofs;
nraw->flash_offset = phys_ofs = write_ofs(c);
ret = jffs2_flash_write(c, phys_ofs, rawlen, &retlen, (char *)node);
if (ret || (retlen != rawlen)) {
printk(KERN_NOTICE "Write of %d bytes at 0x%08x failed. returned %d, retlen %zd\n",
rawlen, phys_ofs, ret, retlen);
rawlen, nraw->flash_offset, ret, retlen);
if (retlen) {
nraw->flash_offset |= REF_OBSOLETE;
jffs2_add_physical_node_ref(c, nraw, rawlen, NULL);
......@@ -653,7 +653,7 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
jffs2_dbg_acct_sanity_check(c,jeb);
jffs2_dbg_acct_paranoia_check(c, jeb);
ret = jffs2_reserve_space_gc(c, rawlen, &phys_ofs, &dummy, rawlen);
ret = jffs2_reserve_space_gc(c, rawlen, &dummy, rawlen);
/* this is not the exact summary size of it,
it is only an upper estimation */
......@@ -696,7 +696,7 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
struct jffs2_node_frag *last_frag;
union jffs2_device_node dev;
char *mdata = NULL, mdatalen = 0;
uint32_t alloclen, phys_ofs, ilen;
uint32_t alloclen, ilen;
int ret;
if (S_ISBLK(JFFS2_F_I_MODE(f)) ||
......@@ -722,7 +722,7 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
}
ret = jffs2_reserve_space_gc(c, sizeof(ri) + mdatalen, &phys_ofs, &alloclen,
ret = jffs2_reserve_space_gc(c, sizeof(ri) + mdatalen, &alloclen,
JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_metadata failed: %d\n",
......@@ -760,7 +760,7 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
ri.data_crc = cpu_to_je32(crc32(0, mdata, mdatalen));
new_fn = jffs2_write_dnode(c, f, &ri, mdata, mdatalen, phys_ofs, ALLOC_GC);
new_fn = jffs2_write_dnode(c, f, &ri, mdata, mdatalen, ALLOC_GC);
if (IS_ERR(new_fn)) {
printk(KERN_WARNING "Error writing new dnode: %ld\n", PTR_ERR(new_fn));
......@@ -781,7 +781,7 @@ static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_er
{
struct jffs2_full_dirent *new_fd;
struct jffs2_raw_dirent rd;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
rd.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
......@@ -803,14 +803,14 @@ static int jffs2_garbage_collect_dirent(struct jffs2_sb_info *c, struct jffs2_er
rd.node_crc = cpu_to_je32(crc32(0, &rd, sizeof(rd)-8));
rd.name_crc = cpu_to_je32(crc32(0, fd->name, rd.nsize));
ret = jffs2_reserve_space_gc(c, sizeof(rd)+rd.nsize, &phys_ofs, &alloclen,
ret = jffs2_reserve_space_gc(c, sizeof(rd)+rd.nsize, &alloclen,
JFFS2_SUMMARY_DIRENT_SIZE(rd.nsize));
if (ret) {
printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_dirent failed: %d\n",
sizeof(rd)+rd.nsize, ret);
return ret;
}
new_fd = jffs2_write_dirent(c, f, &rd, fd->name, rd.nsize, phys_ofs, ALLOC_GC);
new_fd = jffs2_write_dirent(c, f, &rd, fd->name, rd.nsize, ALLOC_GC);
if (IS_ERR(new_fd)) {
printk(KERN_WARNING "jffs2_write_dirent in garbage_collect_dirent failed: %ld\n", PTR_ERR(new_fd));
......@@ -938,7 +938,7 @@ static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eras
struct jffs2_raw_inode ri;
struct jffs2_node_frag *frag;
struct jffs2_full_dnode *new_fn;
uint32_t alloclen, phys_ofs, ilen;
uint32_t alloclen, ilen;
int ret;
D1(printk(KERN_DEBUG "Writing replacement hole node for ino #%u from offset 0x%x to 0x%x\n",
......@@ -1017,14 +1017,14 @@ static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eras
ri.data_crc = cpu_to_je32(0);
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
ret = jffs2_reserve_space_gc(c, sizeof(ri), &phys_ofs, &alloclen,
JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space_gc(c, sizeof(ri), &alloclen,
JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
printk(KERN_WARNING "jffs2_reserve_space_gc of %zd bytes for garbage_collect_hole failed: %d\n",
sizeof(ri), ret);
return ret;
}
new_fn = jffs2_write_dnode(c, f, &ri, NULL, 0, phys_ofs, ALLOC_GC);
new_fn = jffs2_write_dnode(c, f, &ri, NULL, 0, ALLOC_GC);
if (IS_ERR(new_fn)) {
printk(KERN_WARNING "Error writing new hole node: %ld\n", PTR_ERR(new_fn));
......@@ -1086,7 +1086,7 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
{
struct jffs2_full_dnode *new_fn;
struct jffs2_raw_inode ri;
uint32_t alloclen, phys_ofs, offset, orig_end, orig_start;
uint32_t alloclen, offset, orig_end, orig_start;
int ret = 0;
unsigned char *comprbuf = NULL, *writebuf;
unsigned long pg;
......@@ -1243,7 +1243,7 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
uint32_t cdatalen;
uint16_t comprtype = JFFS2_COMPR_NONE;
ret = jffs2_reserve_space_gc(c, sizeof(ri) + JFFS2_MIN_DATA_LEN, &phys_ofs,
ret = jffs2_reserve_space_gc(c, sizeof(ri) + JFFS2_MIN_DATA_LEN,
&alloclen, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
......@@ -1280,7 +1280,7 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
ri.data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
new_fn = jffs2_write_dnode(c, f, &ri, comprbuf, cdatalen, phys_ofs, ALLOC_GC);
new_fn = jffs2_write_dnode(c, f, &ri, comprbuf, cdatalen, ALLOC_GC);
jffs2_free_comprbuf(comprbuf, writebuf);
......
......@@ -167,6 +167,8 @@ struct jffs2_inode_cache {
#define INOCACHE_HASHSIZE 128
#define write_ofs(c) ((c)->nextblock->offset + (c)->sector_size - (c)->nextblock->free_size)
/*
Larger representation of a raw node, kept in-core only when the
struct inode for this particular ino is instantiated.
......@@ -325,9 +327,9 @@ extern uint32_t __jffs2_ref_totlen(struct jffs2_sb_info *c,
/* nodemgmt.c */
int jffs2_thread_should_wake(struct jffs2_sb_info *c);
int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs,
int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, int prio, uint32_t sumsize);
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs,
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize);
int jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
struct jffs2_raw_node_ref *new,
......@@ -339,14 +341,21 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
/* write.c */
int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint32_t mode, struct jffs2_raw_inode *ri);
struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode);
struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode);
struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_raw_inode *ri, const unsigned char *data,
uint32_t datalen, int alloc_mode);
struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_raw_dirent *rd, const unsigned char *name,
uint32_t namelen, int alloc_mode);
int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_raw_inode *ri, unsigned char *buf,
uint32_t offset, uint32_t writelen, uint32_t *retlen);
int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen);
int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, const char *name, int namelen, struct jffs2_inode_info *dead_f, uint32_t time);
int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino, uint8_t type, const char *name, int namelen, uint32_t time);
int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f,
struct jffs2_raw_inode *ri, const char *name, int namelen);
int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, const char *name,
int namelen, struct jffs2_inode_info *dead_f, uint32_t time);
int jffs2_do_link(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino,
uint8_t type, const char *name, int namelen, uint32_t time);
/* readinode.c */
......
......@@ -23,13 +23,12 @@
* jffs2_reserve_space - request physical space to write nodes to flash
* @c: superblock info
* @minsize: Minimum acceptable size of allocation
* @ofs: Returned value of node offset
* @len: Returned value of allocation length
* @prio: Allocation type - ALLOC_{NORMAL,DELETION}
*
* Requests a block of physical space on the flash. Returns zero for success
* and puts 'ofs' and 'len' into the appriopriate place, or returns -ENOSPC
* or other error if appropriate.
* and puts 'len' into the appropriate place, or returns -ENOSPC or other
* error if appropriate. Doesn't return len since that's
*
* If it returns zero, jffs2_reserve_space() also downs the per-filesystem
* allocation semaphore, to prevent more than one allocation from being
......@@ -40,9 +39,9 @@
*/
static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *ofs, uint32_t *len, uint32_t sumsize);
uint32_t *len, uint32_t sumsize);
int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs,
int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, int prio, uint32_t sumsize)
{
int ret = -EAGAIN;
......@@ -132,7 +131,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs
spin_lock(&c->erase_completion_lock);
}
ret = jffs2_do_reserve_space(c, minsize, ofs, len, sumsize);
ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
if (ret) {
D1(printk(KERN_DEBUG "jffs2_reserve_space: ret is %d\n", ret));
}
......@@ -143,8 +142,8 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs
return ret;
}
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs,
uint32_t *len, uint32_t sumsize)
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize)
{
int ret = -EAGAIN;
minsize = PAD(minsize);
......@@ -153,7 +152,7 @@ int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *
spin_lock(&c->erase_completion_lock);
while(ret == -EAGAIN) {
ret = jffs2_do_reserve_space(c, minsize, ofs, len, sumsize);
ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
if (ret) {
D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret));
}
......@@ -259,10 +258,11 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
}
/* Called with alloc sem _and_ erase_completion_lock */
static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uint32_t *ofs, uint32_t *len, uint32_t sumsize)
static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize)
{
struct jffs2_eraseblock *jeb = c->nextblock;
uint32_t reserved_size; /* for summary information at the end of the jeb */
uint32_t reserved_size; /* for summary information at the end of the jeb */
int ret;
restart:
......@@ -349,7 +349,6 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uin
}
/* OK, jeb (==c->nextblock) is now pointing at a block which definitely has
enough space */
*ofs = jeb->offset + (c->sector_size - jeb->free_size);
*len = jeb->free_size - reserved_size;
if (c->cleanmarker_size && jeb->used_size == c->cleanmarker_size &&
......@@ -365,7 +364,8 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, uin
spin_lock(&c->erase_completion_lock);
}
D1(printk(KERN_DEBUG "jffs2_do_reserve_space(): Giving 0x%x bytes at 0x%x\n", *len, *ofs));
D1(printk(KERN_DEBUG "jffs2_do_reserve_space(): Giving 0x%x bytes at 0x%x\n",
*len, jeb->offset + (c->sector_size - jeb->free_size)));
return 0;
}
......
......@@ -265,12 +265,14 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
/* ... and get an allocation of space from a shiny new block instead */
ret = jffs2_reserve_space_gc(c, end-start, &ofs, &len, JFFS2_SUMMARY_NOSUM_SIZE);
ret = jffs2_reserve_space_gc(c, end-start, &len, JFFS2_SUMMARY_NOSUM_SIZE);
if (ret) {
printk(KERN_WARNING "Failed to allocate space for wbuf recovery. Data loss ensues.\n");
kfree(buf);
return;
}
ofs = write_ofs(c);
if (end-start >= c->wbuf_pagesize) {
/* Need to do another write immediately, but it's possible
that this is just because the wbuf itself is completely
......
......@@ -56,12 +56,15 @@ int jffs2_do_new_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, uint
/* jffs2_write_dnode - given a raw_inode, allocate a full_dnode for it,
write it to the flash, link it into the existing inode/fragment list */
struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const unsigned char *data, uint32_t datalen, uint32_t flash_ofs, int alloc_mode)
struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_raw_inode *ri, const unsigned char *data,
uint32_t datalen, int alloc_mode)
{
struct jffs2_raw_node_ref *raw;
struct jffs2_full_dnode *fn;
size_t retlen;
uint32_t flash_ofs;
struct kvec vecs[2];
int ret;
int retried = 0;
......@@ -77,8 +80,6 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
vecs[1].iov_base = (unsigned char *)data;
vecs[1].iov_len = datalen;
jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
if (je32_to_cpu(ri->totlen) != sizeof(*ri) + datalen) {
printk(KERN_WARNING "jffs2_write_dnode: ri->totlen (0x%08x) != sizeof(*ri) (0x%08zx) + datalen (0x%08x)\n", je32_to_cpu(ri->totlen), sizeof(*ri), datalen);
}
......@@ -102,7 +103,9 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
retry:
fn->raw = raw;
raw->flash_offset = flash_ofs;
raw->flash_offset = flash_ofs = write_ofs(c);
jffs2_dbg_prewrite_paranoia_check(c, flash_ofs, vecs[0].iov_len + vecs[1].iov_len);
if ((alloc_mode!=ALLOC_GC) && (je32_to_cpu(ri->version) < f->highest_version)) {
BUG_ON(!retried);
......@@ -147,19 +150,20 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
jffs2_dbg_acct_paranoia_check(c, jeb);
if (alloc_mode == ALLOC_GC) {
ret = jffs2_reserve_space_gc(c, sizeof(*ri) + datalen, &flash_ofs,
&dummy, JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space_gc(c, sizeof(*ri) + datalen, &dummy,
JFFS2_SUMMARY_INODE_SIZE);
} else {
/* Locking pain */
up(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_reserve_space(c, sizeof(*ri) + datalen, &flash_ofs,
&dummy, alloc_mode, JFFS2_SUMMARY_INODE_SIZE);
ret = jffs2_reserve_space(c, sizeof(*ri) + datalen, &dummy,
alloc_mode, JFFS2_SUMMARY_INODE_SIZE);
down(&f->sem);
}
if (!ret) {
flash_ofs = write_ofs(c);
D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
jffs2_dbg_acct_sanity_check(c,jeb);
......@@ -200,12 +204,15 @@ struct jffs2_full_dnode *jffs2_write_dnode(struct jffs2_sb_info *c, struct jffs2
return fn;
}
struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f, struct jffs2_raw_dirent *rd, const unsigned char *name, uint32_t namelen, uint32_t flash_ofs, int alloc_mode)
struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_raw_dirent *rd, const unsigned char *name,
uint32_t namelen, int alloc_mode)
{
struct jffs2_raw_node_ref *raw;
struct jffs2_full_dirent *fd;
size_t retlen;
struct kvec vecs[2];
uint32_t flash_ofs = write_ofs(c);
int retried = 0;
int ret;
......@@ -286,19 +293,20 @@ struct jffs2_full_dirent *jffs2_write_dirent(struct jffs2_sb_info *c, struct jff
jffs2_dbg_acct_paranoia_check(c, jeb);
if (alloc_mode == ALLOC_GC) {
ret = jffs2_reserve_space_gc(c, sizeof(*rd) + namelen, &flash_ofs,
&dummy, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
ret = jffs2_reserve_space_gc(c, sizeof(*rd) + namelen, &dummy,
JFFS2_SUMMARY_DIRENT_SIZE(namelen));
} else {
/* Locking pain */
up(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_reserve_space(c, sizeof(*rd) + namelen, &flash_ofs,
&dummy, alloc_mode, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
ret = jffs2_reserve_space(c, sizeof(*rd) + namelen, &dummy,
alloc_mode, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
down(&f->sem);
}
if (!ret) {
flash_ofs = write_ofs(c);
D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", flash_ofs));
jffs2_dbg_acct_sanity_check(c,jeb);
jffs2_dbg_acct_paranoia_check(c, jeb);
......@@ -339,14 +347,14 @@ int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
struct jffs2_full_dnode *fn;
unsigned char *comprbuf = NULL;
uint16_t comprtype = JFFS2_COMPR_NONE;
uint32_t phys_ofs, alloclen;
uint32_t alloclen;
uint32_t datalen, cdatalen;
int retried = 0;
retry:
D2(printk(KERN_DEBUG "jffs2_commit_write() loop: 0x%x to write to 0x%x\n", writelen, offset));
ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN, &phys_ofs,
ret = jffs2_reserve_space(c, sizeof(*ri) + JFFS2_MIN_DATA_LEN,
&alloclen, ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
if (ret) {
D1(printk(KERN_DEBUG "jffs2_reserve_space returned %d\n", ret));
......@@ -374,7 +382,7 @@ int jffs2_write_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
ri->data_crc = cpu_to_je32(crc32(0, comprbuf, cdatalen));
fn = jffs2_write_dnode(c, f, ri, comprbuf, cdatalen, phys_ofs, ALLOC_NORETRY);
fn = jffs2_write_dnode(c, f, ri, comprbuf, cdatalen, ALLOC_NORETRY);
jffs2_free_comprbuf(comprbuf, buf);
......@@ -428,13 +436,13 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
struct jffs2_raw_dirent *rd;
struct jffs2_full_dnode *fn;
struct jffs2_full_dirent *fd;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
/* Try to reserve enough space for both node and dirent.
* Just the node will do for now, though
*/
ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL,
ret = jffs2_reserve_space(c, sizeof(*ri), &alloclen, ALLOC_NORMAL,
JFFS2_SUMMARY_INODE_SIZE);
D1(printk(KERN_DEBUG "jffs2_do_create(): reserved 0x%x bytes\n", alloclen));
if (ret) {
......@@ -445,7 +453,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
ri->data_crc = cpu_to_je32(0);
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
fn = jffs2_write_dnode(c, f, ri, NULL, 0, ALLOC_NORMAL);
D1(printk(KERN_DEBUG "jffs2_do_create created file with mode 0x%x\n",
jemode_to_cpu(ri->mode)));
......@@ -464,7 +472,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
up(&f->sem);
jffs2_complete_reservation(c);
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
......@@ -496,7 +504,7 @@ int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, str
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_NORMAL);
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, ALLOC_NORMAL);
jffs2_free_raw_dirent(rd);
......@@ -525,7 +533,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
{
struct jffs2_raw_dirent *rd;
struct jffs2_full_dirent *fd;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
if (1 /* alternative branch needs testing */ ||
......@@ -536,7 +544,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
if (!rd)
return -ENOMEM;
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_DELETION, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
jffs2_free_raw_dirent(rd);
......@@ -560,7 +568,7 @@ int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_DELETION);
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, ALLOC_DELETION);
jffs2_free_raw_dirent(rd);
......@@ -639,14 +647,14 @@ int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint
{
struct jffs2_raw_dirent *rd;
struct jffs2_full_dirent *fd;
uint32_t alloclen, phys_ofs;
uint32_t alloclen;
int ret;
rd = jffs2_alloc_raw_dirent();
if (!rd)
return -ENOMEM;
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
if (ret) {
jffs2_free_raw_dirent(rd);
......@@ -672,7 +680,7 @@ int jffs2_do_link (struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, phys_ofs, ALLOC_NORMAL);
fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, ALLOC_NORMAL);
jffs2_free_raw_dirent(rd);
......
......@@ -49,9 +49,9 @@
* is used to be as a wrapper of do_verify_xattr_datum() and do_load_xattr_datum().
* If xd need to call do_verify_xattr_datum() at first, it's called before calling
* do_load_xattr_datum(). The meanings of return value is same as do_verify_xattr_datum().
* save_xattr_datum(c, xd, phys_ofs)
* save_xattr_datum(c, xd)
* is used to write xdatum to medium. xd->version will be incremented.
* create_xattr_datum(c, xprefix, xname, xvalue, xsize, phys_ofs)
* create_xattr_datum(c, xprefix, xname, xvalue, xsize)