A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge git://git.infradead.org/mtd-2.6

Browse source 
* git://git.infradead.org/mtd-2.6: (21 commits)
  [MTD] [CHIPS] Remove MTD_OBSOLETE_CHIPS (jedec, amd_flash, sharp)
  [MTD] Delete allegedly obsolete "bank_size" field of mtd_info.
  [MTD] Remove unnecessary user space check from mtd.h.
  [MTD] [MAPS] Remove flash maps for no longer supported 405LP boards
  [MTD] [MAPS] Fix missing printk() parameter in physmap_of.c MTD driver
  [MTD] [NAND] platform NAND driver: add driver
  [MTD] [NAND] platform NAND driver: update header
  [JFFS2] Simplify and clean up jffs2_add_tn_to_tree() some more.
  [JFFS2] Remove another bogus optimisation in jffs2_add_tn_to_tree()
  [JFFS2] Remove broken insert_point optimisation in jffs2_add_tn_to_tree()
  [JFFS2] Remember to calculate overlap on nodes which replace older nodes
  [JFFS2] Don't advance c->wbuf_ofs to next eraseblock after wbuf flush
  [MTD] [NAND] at91_nand.c: CMDLINE_PARTS support
  [MTD] [NAND] Tidy up handling of page number in nand_block_bad()
  [MTD] block2mtd_paramline[] mustn't be __initdata
  [MTD] [NAND] Support multiple chips in CAFÉ driver
  [MTD] [NAND] Rename cafe.c to cafe_nand.c and remove the multi-obj magic
  [MTD] [NAND] Use rslib for CAFÉ ECC
  [RSLIB] Support non-canonical GF representations
  [JFFS2] Remove dead file histo_mips.h
  ...
This commit is contained in:
Linus Torvalds 2007-05-09 13:10:11 -07:00
commit ba7cc09c9c
27 changed files with 429 additions and 4751 deletions
Download patch file Download diff file Expand all files Collapse all files

2
fs/jffs2/histo_mips.h
View file

@ -1,2 +0,0 @@
#define BIT_DIVIDER_MIPS 1043
static int bits_mips[8] = { 277,249,290,267,229,341,212,241}; /* mips32 */

80
fs/jffs2/readinode.c
View file

@ -219,9 +219,9 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
struct jffs2_tmp_dnode_info *tn)
{
uint32_t fn_end = tn->fn->ofs + tn->fn->size;
struct jffs2_tmp_dnode_info *insert_point = NULL, *this;
struct jffs2_tmp_dnode_info *this;
dbg_readinode("insert fragment %#04x-%#04x, ver %u\n", tn->fn->ofs, fn_end, tn->version);
dbg_readinode("insert fragment %#04x-%#04x, ver %u at %08x\n", tn->fn->ofs, fn_end, tn->version, ref_offset(tn->fn->raw));
/* If a node has zero dsize, we only have to keep if it if it might be the
node with highest version -- i.e. the one which will end up as f->metadata.
@ -240,24 +240,17 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
/* Find the earliest node which _may_ be relevant to this one */
this = jffs2_lookup_tn(&rii->tn_root, tn->fn->ofs);
if (!this) {
/* First addition to empty tree. $DEITY how I love the easy cases */
rb_link_node(&tn->rb, NULL, &rii->tn_root.rb_node);
rb_insert_color(&tn->rb, &rii->tn_root);
dbg_readinode("keep new frag\n");
return 0;
if (this) {
/* If the node is coincident with another at a lower address,
back up until the other node is found. It may be relevant */
while (this->overlapped)
this = tn_prev(this);
/* First node should never be marked overlapped */
BUG_ON(!this);
dbg_readinode("'this' found %#04x-%#04x (%s)\n", this->fn->ofs, this->fn->ofs + this->fn->size, this->fn ? "data" : "hole");
}
/* If we add a new node it'll be somewhere under here. */
insert_point = this;
/* If the node is coincident with another at a lower address,
back up until the other node is found. It may be relevant */
while (tn->overlapped)
tn = tn_prev(tn);
dbg_readinode("'this' found %#04x-%#04x (%s)\n", this->fn->ofs, this->fn->ofs + this->fn->size, this->fn ? "data" : "hole");
while (this) {
if (this->fn->ofs > fn_end)
break;
@ -274,11 +267,10 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
return 0;
} else {
/* Who cares if the new one is good; keep it for now anyway. */
rb_replace_node(&this->rb, &tn->rb, &rii->tn_root);
/* Same overlapping from in front and behind */
tn->overlapped = this->overlapped;
jffs2_kill_tn(c, this);
dbg_readinode("Like new node. Throw away old\n");
rb_replace_node(&this->rb, &tn->rb, &rii->tn_root);
jffs2_kill_tn(c, this);
/* Same overlapping from in front and behind */
return 0;
}
}
@ -291,13 +283,8 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
jffs2_kill_tn(c, tn);
return 0;
}
/* ... and is good. Kill 'this'... */
rb_replace_node(&this->rb, &tn->rb, &rii->tn_root);
tn->overlapped = this->overlapped;
jffs2_kill_tn(c, this);
/* ... and any subsequent nodes which are also overlapped */
this = tn_next(tn);
while (this && this->fn->ofs + this->fn->size < fn_end) {
/* ... and is good. Kill 'this' and any subsequent nodes which are also overlapped */
while (this && this->fn->ofs + this->fn->size <= fn_end) {
struct jffs2_tmp_dnode_info *next = tn_next(this);
if (this->version < tn->version) {
tn_erase(this, &rii->tn_root);
@ -308,8 +295,8 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
}
this = next;
}
dbg_readinode("Done inserting new\n");
return 0;
dbg_readinode("Done killing overlapped nodes\n");
continue;
}
if (this->version > tn->version &&
this->fn->ofs <= tn->fn->ofs &&
@ -321,29 +308,21 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
return 0;
}
/* ... but 'this' was bad. Replace it... */
rb_replace_node(&this->rb, &tn->rb, &rii->tn_root);
dbg_readinode("Bad CRC on old overlapping node. Kill it\n");
tn_erase(this, &rii->tn_root);
jffs2_kill_tn(c, this);
return 0;
break;
}
/* We want to be inserted under the last node which is
either at a lower offset _or_ has a smaller range */
if (this->fn->ofs < tn->fn->ofs ||
(this->fn->ofs == tn->fn->ofs &&
this->fn->size <= tn->fn->size))
insert_point = this;
this = tn_next(this);
}
dbg_readinode("insert_point %p, ver %d, 0x%x-0x%x, ov %d\n",
insert_point, insert_point->version, insert_point->fn->ofs,
insert_point->fn->ofs+insert_point->fn->size,
insert_point->overlapped);
/* We neither completely obsoleted nor were completely
obsoleted by an earlier node. Insert under insert_point */
obsoleted by an earlier node. Insert into the tree */
{
struct rb_node *parent = &insert_point->rb;
struct rb_node **link = &parent;
struct rb_node *parent;
struct rb_node **link = &rii->tn_root.rb_node;
struct jffs2_tmp_dnode_info *insert_point = NULL;
while (*link) {
parent = *link;
@ -359,6 +338,7 @@ static int jffs2_add_tn_to_tree(struct jffs2_sb_info *c,
rb_link_node(&tn->rb, &insert_point->rb, link);
rb_insert_color(&tn->rb, &rii->tn_root);
}
/* If there's anything behind that overlaps us, note it */
this = tn_prev(tn);
if (this) {
@ -457,7 +437,7 @@ static int jffs2_build_inode_fragtree(struct jffs2_sb_info *c,
this = tn_last(&rii->tn_root);
while (this) {
dbg_readinode("tn %p ver %d range 0x%x-0x%x ov %d\n", this, this->version, this->fn->ofs,
this->fn->ofs+this->fn->size, this->overlapped);
this->fn->ofs+this->fn->size, this->overlapped);
this = tn_prev(this);
}
#endif
@ -483,7 +463,7 @@ static int jffs2_build_inode_fragtree(struct jffs2_sb_info *c,
vers_next = tn_prev(this);
eat_last(&ver_root, &this->rb);
if (check_tn_node(c, this)) {
dbg_readinode("node ver %x, 0x%x-0x%x failed CRC\n",
dbg_readinode("node ver %d, 0x%x-0x%x failed CRC\n",
this->version, this->fn->ofs,
this->fn->ofs+this->fn->size);
jffs2_kill_tn(c, this);
@ -496,7 +476,7 @@ static int jffs2_build_inode_fragtree(struct jffs2_sb_info *c,
high_ver = this->version;
rii->latest_ref = this->fn->raw;
}
dbg_readinode("Add %p (v %x, 0x%x-0x%x, ov %d) to fragtree\n",
dbg_readinode("Add %p (v %d, 0x%x-0x%x, ov %d) to fragtree\n",
this, this->version, this->fn->ofs,
this->fn->ofs+this->fn->size, this->overlapped);
@ -850,7 +830,7 @@ static inline int read_dnode(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
return ret;
}
#ifdef JFFS2_DBG_READINODE_MESSAGES
dbg_readinode("After adding ver %d:\n", tn->version);
dbg_readinode("After adding ver %d:\n", je32_to_cpu(rd->version));
tn = tn_first(&rii->tn_root);
while (tn) {
dbg_readinode("%p: v %d r 0x%x-0x%x ov %d\n",

5
fs/jffs2/wbuf.c
View file

@ -637,7 +637,10 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
memset(c->wbuf,0xff,c->wbuf_pagesize);
/* adjust write buffer offset, else we get a non contiguous write bug */
c->wbuf_ofs += c->wbuf_pagesize;
if (SECTOR_ADDR(c->wbuf_ofs) == SECTOR_ADDR(c->wbuf_ofs+c->wbuf_pagesize))
c->wbuf_ofs += c->wbuf_pagesize;
else
c->wbuf_ofs = 0xffffffff;
c->wbuf_len = 0;
return 0;
}