summaryrefslogtreecommitdiff
path: root/fs/jffs2/gc.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/jffs2/gc.c')
-rw-r--r--fs/jffs2/gc.c162
1 files changed, 96 insertions, 66 deletions
diff --git a/fs/jffs2/gc.c b/fs/jffs2/gc.c
index 31dce611337..85e703a2936 100644
--- a/fs/jffs2/gc.c
+++ b/fs/jffs2/gc.c
@@ -51,44 +51,44 @@ static struct jffs2_eraseblock *jffs2_find_gc_block(struct jffs2_sb_info *c)
number of free blocks is low. */
again:
if (!list_empty(&c->bad_used_list) && c->nr_free_blocks > c->resv_blocks_gcbad) {
- D1(printk(KERN_DEBUG "Picking block from bad_used_list to GC next\n"));
+ jffs2_dbg(1, "Picking block from bad_used_list to GC next\n");
nextlist = &c->bad_used_list;
} else if (n < 50 && !list_empty(&c->erasable_list)) {
/* Note that most of them will have gone directly to be erased.
So don't favour the erasable_list _too_ much. */
- D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next\n"));
+ jffs2_dbg(1, "Picking block from erasable_list to GC next\n");
nextlist = &c->erasable_list;
} else if (n < 110 && !list_empty(&c->very_dirty_list)) {
/* Most of the time, pick one off the very_dirty list */
- D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next\n"));
+ jffs2_dbg(1, "Picking block from very_dirty_list to GC next\n");
nextlist = &c->very_dirty_list;
} else if (n < 126 && !list_empty(&c->dirty_list)) {
- D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next\n"));
+ jffs2_dbg(1, "Picking block from dirty_list to GC next\n");
nextlist = &c->dirty_list;
} else if (!list_empty(&c->clean_list)) {
- D1(printk(KERN_DEBUG "Picking block from clean_list to GC next\n"));
+ jffs2_dbg(1, "Picking block from clean_list to GC next\n");
nextlist = &c->clean_list;
} else if (!list_empty(&c->dirty_list)) {
- D1(printk(KERN_DEBUG "Picking block from dirty_list to GC next (clean_list was empty)\n"));
+ jffs2_dbg(1, "Picking block from dirty_list to GC next (clean_list was empty)\n");
nextlist = &c->dirty_list;
} else if (!list_empty(&c->very_dirty_list)) {
- D1(printk(KERN_DEBUG "Picking block from very_dirty_list to GC next (clean_list and dirty_list were empty)\n"));
+ jffs2_dbg(1, "Picking block from very_dirty_list to GC next (clean_list and dirty_list were empty)\n");
nextlist = &c->very_dirty_list;
} else if (!list_empty(&c->erasable_list)) {
- D1(printk(KERN_DEBUG "Picking block from erasable_list to GC next (clean_list and {very_,}dirty_list were empty)\n"));
+ jffs2_dbg(1, "Picking block from erasable_list to GC next (clean_list and {very_,}dirty_list were empty)\n");
nextlist = &c->erasable_list;
} else if (!list_empty(&c->erasable_pending_wbuf_list)) {
/* There are blocks are wating for the wbuf sync */
- D1(printk(KERN_DEBUG "Synching wbuf in order to reuse erasable_pending_wbuf_list blocks\n"));
+ jffs2_dbg(1, "Synching wbuf in order to reuse erasable_pending_wbuf_list blocks\n");
spin_unlock(&c->erase_completion_lock);
jffs2_flush_wbuf_pad(c);
spin_lock(&c->erase_completion_lock);
goto again;
} else {
/* Eep. All were empty */
- D1(printk(KERN_NOTICE "jffs2: No clean, dirty _or_ erasable blocks to GC from! Where are they all?\n"));
+ jffs2_dbg(1, "jffs2: No clean, dirty _or_ erasable blocks to GC from! Where are they all?\n");
return NULL;
}
@@ -103,7 +103,8 @@ again:
/* Have we accidentally picked a clean block with wasted space ? */
if (ret->wasted_size) {
- D1(printk(KERN_DEBUG "Converting wasted_size %08x to dirty_size\n", ret->wasted_size));
+ jffs2_dbg(1, "Converting wasted_size %08x to dirty_size\n",
+ ret->wasted_size);
ret->dirty_size += ret->wasted_size;
c->wasted_size -= ret->wasted_size;
c->dirty_size += ret->wasted_size;
@@ -163,8 +164,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
}
if (!ic->pino_nlink) {
- D1(printk(KERN_DEBUG "Skipping check of ino #%d with nlink/pino zero\n",
- ic->ino));
+ jffs2_dbg(1, "Skipping check of ino #%d with nlink/pino zero\n",
+ ic->ino);
spin_unlock(&c->inocache_lock);
jffs2_xattr_delete_inode(c, ic);
continue;
@@ -172,7 +173,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
switch(ic->state) {
case INO_STATE_CHECKEDABSENT:
case INO_STATE_PRESENT:
- D1(printk(KERN_DEBUG "Skipping ino #%u already checked\n", ic->ino));
+ jffs2_dbg(1, "Skipping ino #%u already checked\n",
+ ic->ino);
spin_unlock(&c->inocache_lock);
continue;
@@ -186,7 +188,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
/* We need to wait for it to finish, lest we move on
and trigger the BUG() above while we haven't yet
finished checking all its nodes */
- D1(printk(KERN_DEBUG "Waiting for ino #%u to finish reading\n", ic->ino));
+ jffs2_dbg(1, "Waiting for ino #%u to finish reading\n",
+ ic->ino);
/* We need to come back again for the _same_ inode. We've
made no progress in this case, but that should be OK */
c->checked_ino--;
@@ -204,7 +207,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
ic->state = INO_STATE_CHECKING;
spin_unlock(&c->inocache_lock);
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() triggering inode scan of ino#%u\n", ic->ino));
+ jffs2_dbg(1, "%s(): triggering inode scan of ino#%u\n",
+ __func__, ic->ino);
ret = jffs2_do_crccheck_inode(c, ic);
if (ret)
@@ -220,11 +224,11 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
!list_empty(&c->erase_pending_list)) {
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->alloc_sem);
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() erasing pending blocks\n"));
+ jffs2_dbg(1, "%s(): erasing pending blocks\n", __func__);
if (jffs2_erase_pending_blocks(c, 1))
return 0;
- D1(printk(KERN_DEBUG "No progress from erasing blocks; doing GC anyway\n"));
+ jffs2_dbg(1, "No progress from erasing block; doing GC anyway\n");
spin_lock(&c->erase_completion_lock);
mutex_lock(&c->alloc_sem);
}
@@ -242,13 +246,14 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
mutex_unlock(&c->alloc_sem);
return -EAGAIN;
}
- D1(printk(KERN_NOTICE "jffs2: Couldn't find erase block to garbage collect!\n"));
+ jffs2_dbg(1, "jffs2: Couldn't find erase block to garbage collect!\n");
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->alloc_sem);
return -EIO;
}
- D1(printk(KERN_DEBUG "GC from block %08x, used_size %08x, dirty_size %08x, free_size %08x\n", jeb->offset, jeb->used_size, jeb->dirty_size, jeb->free_size));
+ jffs2_dbg(1, "GC from block %08x, used_size %08x, dirty_size %08x, free_size %08x\n",
+ jeb->offset, jeb->used_size, jeb->dirty_size, jeb->free_size);
D1(if (c->nextblock)
printk(KERN_DEBUG "Nextblock at %08x, used_size %08x, dirty_size %08x, wasted_size %08x, free_size %08x\n", c->nextblock->offset, c->nextblock->used_size, c->nextblock->dirty_size, c->nextblock->wasted_size, c->nextblock->free_size));
@@ -261,7 +266,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
gcblock_dirty = jeb->dirty_size;
while(ref_obsolete(raw)) {
- D1(printk(KERN_DEBUG "Node at 0x%08x is obsolete... skipping\n", ref_offset(raw)));
+ jffs2_dbg(1, "Node at 0x%08x is obsolete... skipping\n",
+ ref_offset(raw));
raw = ref_next(raw);
if (unlikely(!raw)) {
printk(KERN_WARNING "eep. End of raw list while still supposedly nodes to GC\n");
@@ -275,7 +281,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
}
jeb->gc_node = raw;
- D1(printk(KERN_DEBUG "Going to garbage collect node at 0x%08x\n", ref_offset(raw)));
+ jffs2_dbg(1, "Going to garbage collect node at 0x%08x\n",
+ ref_offset(raw));
if (!raw->next_in_ino) {
/* Inode-less node. Clean marker, snapshot or something like that */
@@ -316,7 +323,9 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
spin_unlock(&c->erase_completion_lock);
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass collecting from block @0x%08x. Node @0x%08x(%d), ino #%u\n", jeb->offset, ref_offset(raw), ref_flags(raw), ic->ino));
+ jffs2_dbg(1, "%s(): collecting from block @0x%08x. Node @0x%08x(%d), ino #%u\n",
+ __func__, jeb->offset, ref_offset(raw), ref_flags(raw),
+ ic->ino);
/* Three possibilities:
1. Inode is already in-core. We must iget it and do proper
@@ -336,8 +345,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
if (ref_flags(raw) == REF_PRISTINE)
ic->state = INO_STATE_GC;
else {
- D1(printk(KERN_DEBUG "Ino #%u is absent but node not REF_PRISTINE. Reading.\n",
- ic->ino));
+ jffs2_dbg(1, "Ino #%u is absent but node not REF_PRISTINE. Reading.\n",
+ ic->ino);
}
break;
@@ -367,8 +376,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
drop the alloc_sem before sleeping. */
mutex_unlock(&c->alloc_sem);
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_pass() waiting for ino #%u in state %d\n",
- ic->ino, ic->state));
+ jffs2_dbg(1, "%s(): waiting for ino #%u in state %d\n",
+ __func__, ic->ino, ic->state);
sleep_on_spinunlock(&c->inocache_wq, &c->inocache_lock);
/* And because we dropped the alloc_sem we must start again from the
beginning. Ponder chance of livelock here -- we're returning success
@@ -445,7 +454,8 @@ int jffs2_garbage_collect_pass(struct jffs2_sb_info *c)
eraseit:
if (c->gcblock && !c->gcblock->used_size) {
- D1(printk(KERN_DEBUG "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n", c->gcblock->offset));
+ jffs2_dbg(1, "Block at 0x%08x completely obsoleted by GC. Moving to erase_pending_list\n",
+ c->gcblock->offset);
/* We're GC'ing an empty block? */
list_add_tail(&c->gcblock->list, &c->erase_pending_list);
c->gcblock = NULL;
@@ -475,12 +485,12 @@ static int jffs2_garbage_collect_live(struct jffs2_sb_info *c, struct jffs2_era
if (c->gcblock != jeb) {
spin_unlock(&c->erase_completion_lock);
- D1(printk(KERN_DEBUG "GC block is no longer gcblock. Restart\n"));
+ jffs2_dbg(1, "GC block is no longer gcblock. Restart\n");
goto upnout;
}
if (ref_obsolete(raw)) {
spin_unlock(&c->erase_completion_lock);
- D1(printk(KERN_DEBUG "node to be GC'd was obsoleted in the meantime.\n"));
+ jffs2_dbg(1, "node to be GC'd was obsoleted in the meantime.\n");
/* They'll call again */
goto upnout;
}
@@ -562,7 +572,8 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
uint32_t crc, rawlen;
int retried = 0;
- D1(printk(KERN_DEBUG "Going to GC REF_PRISTINE node at 0x%08x\n", ref_offset(raw)));
+ jffs2_dbg(1, "Going to GC REF_PRISTINE node at 0x%08x\n",
+ ref_offset(raw));
alloclen = rawlen = ref_totlen(c, c->gcblock, raw);
@@ -671,7 +682,7 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
retried = 1;
- D1(printk(KERN_DEBUG "Retrying failed write of REF_PRISTINE node.\n"));
+ jffs2_dbg(1, "Retrying failed write of REF_PRISTINE node.\n");
jffs2_dbg_acct_sanity_check(c,jeb);
jffs2_dbg_acct_paranoia_check(c, jeb);
@@ -681,14 +692,16 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
it is only an upper estimation */
if (!ret) {
- D1(printk(KERN_DEBUG "Allocated space at 0x%08x to retry failed write.\n", phys_ofs));
+ jffs2_dbg(1, "Allocated space at 0x%08x to retry failed write.\n",
+ phys_ofs);
jffs2_dbg_acct_sanity_check(c,jeb);
jffs2_dbg_acct_paranoia_check(c, jeb);
goto retry;
}
- D1(printk(KERN_DEBUG "Failed to allocate space to retry failed write: %d!\n", ret));
+ jffs2_dbg(1, "Failed to allocate space to retry failed write: %d!\n",
+ ret);
}
if (!ret)
@@ -698,7 +711,8 @@ static int jffs2_garbage_collect_pristine(struct jffs2_sb_info *c,
jffs2_add_physical_node_ref(c, phys_ofs | REF_PRISTINE, rawlen, ic);
jffs2_mark_node_obsolete(c, raw);
- D1(printk(KERN_DEBUG "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n", ref_offset(raw)));
+ jffs2_dbg(1, "WHEEE! GC REF_PRISTINE node at 0x%08x succeeded\n",
+ ref_offset(raw));
out_node:
kfree(node);
@@ -725,7 +739,8 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
/* For these, we don't actually need to read the old node */
mdatalen = jffs2_encode_dev(&dev, JFFS2_F_I_RDEV(f));
mdata = (char *)&dev;
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bytes of kdev_t\n", mdatalen));
+ jffs2_dbg(1, "%s(): Writing %d bytes of kdev_t\n",
+ __func__, mdatalen);
} else if (S_ISLNK(JFFS2_F_I_MODE(f))) {
mdatalen = fn->size;
mdata = kmalloc(fn->size, GFP_KERNEL);
@@ -739,7 +754,8 @@ static int jffs2_garbage_collect_metadata(struct jffs2_sb_info *c, struct jffs2_
kfree(mdata);
return ret;
}
- D1(printk(KERN_DEBUG "jffs2_garbage_collect_metadata(): Writing %d bites of symlink target\n", mdatalen));
+ jffs2_dbg(1, "%s(): Writing %d bites of symlink target\n",
+ __func__, mdatalen);
}
@@ -887,7 +903,8 @@ static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct
if (SECTOR_ADDR(raw->flash_offset) == SECTOR_ADDR(fd->raw->flash_offset))
continue;
- D1(printk(KERN_DEBUG "Check potential deletion dirent at %08x\n", ref_offset(raw)));
+ jffs2_dbg(1, "Check potential deletion dirent at %08x\n",
+ ref_offset(raw));
/* This is an obsolete node belonging to the same directory, and it's of the right
length. We need to take a closer look...*/
@@ -923,8 +940,9 @@ static int jffs2_garbage_collect_deletion_dirent(struct jffs2_sb_info *c, struct
a new deletion dirent to replace it */
mutex_unlock(&c->erase_free_sem);
- D1(printk(KERN_DEBUG "Deletion dirent at %08x still obsoletes real dirent \"%s\" at %08x for ino #%u\n",
- ref_offset(fd->raw), fd->name, ref_offset(raw), je32_to_cpu(rd->ino)));
+ jffs2_dbg(1, "Deletion dirent at %08x still obsoletes real dirent \"%s\" at %08x for ino #%u\n",
+ ref_offset(fd->raw), fd->name,
+ ref_offset(raw), je32_to_cpu(rd->ino));
kfree(rd);
return jffs2_garbage_collect_dirent(c, jeb, f, fd);
@@ -964,8 +982,8 @@ static int jffs2_garbage_collect_hole(struct jffs2_sb_info *c, struct jffs2_eras
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",
- f->inocache->ino, start, end));
+ jffs2_dbg(1, "Writing replacement hole node for ino #%u from offset 0x%x to 0x%x\n",
+ f->inocache->ino, start, end);
memset(&ri, 0, sizeof(ri));
@@ -1117,8 +1135,8 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
memset(&ri, 0, sizeof(ri));
- D1(printk(KERN_DEBUG "Writing replacement dnode for ino #%u from offset 0x%x to 0x%x\n",
- f->inocache->ino, start, end));
+ jffs2_dbg(1, "Writing replacement dnode for ino #%u from offset 0x%x to 0x%x\n",
+ f->inocache->ino, start, end);
orig_end = end;
orig_start = start;
@@ -1149,15 +1167,15 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
/* If the previous frag doesn't even reach the beginning, there's
excessive fragmentation. Just merge. */
if (frag->ofs > min) {
- D1(printk(KERN_DEBUG "Expanding down to cover partial frag (0x%x-0x%x)\n",
- frag->ofs, frag->ofs+frag->size));
+ jffs2_dbg(1, "Expanding down to cover partial frag (0x%x-0x%x)\n",
+ frag->ofs, frag->ofs+frag->size);
start = frag->ofs;
continue;
}
/* OK. This frag holds the first byte of the page. */
if (!frag->node || !frag->node->raw) {
- D1(printk(KERN_DEBUG "First frag in page is hole (0x%x-0x%x). Not expanding down.\n",
- frag->ofs, frag->ofs+frag->size));
+ jffs2_dbg(1, "First frag in page is hole (0x%x-0x%x). Not expanding down.\n",
+ frag->ofs, frag->ofs+frag->size);
break;
} else {
@@ -1171,19 +1189,25 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
jeb = &c->blocks[raw->flash_offset / c->sector_size];
if (jeb == c->gcblock) {
- D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in gcblock at %08x\n",
- frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
+ jffs2_dbg(1, "Expanding down to cover frag (0x%x-0x%x) in gcblock at %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ ref_offset(raw));
start = frag->ofs;
break;
}
if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
- D1(printk(KERN_DEBUG "Not expanding down to cover frag (0x%x-0x%x) in clean block %08x\n",
- frag->ofs, frag->ofs+frag->size, jeb->offset));
+ jffs2_dbg(1, "Not expanding down to cover frag (0x%x-0x%x) in clean block %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ jeb->offset);
break;
}
- D1(printk(KERN_DEBUG "Expanding down to cover frag (0x%x-0x%x) in dirty block %08x\n",
- frag->ofs, frag->ofs+frag->size, jeb->offset));
+ jffs2_dbg(1, "Expanding down to cover frag (0x%x-0x%x) in dirty block %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ jeb->offset);
start = frag->ofs;
break;
}
@@ -1199,15 +1223,15 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
/* If the previous frag doesn't even reach the beginning, there's lots
of fragmentation. Just merge. */
if (frag->ofs+frag->size < max) {
- D1(printk(KERN_DEBUG "Expanding up to cover partial frag (0x%x-0x%x)\n",
- frag->ofs, frag->ofs+frag->size));
+ jffs2_dbg(1, "Expanding up to cover partial frag (0x%x-0x%x)\n",
+ frag->ofs, frag->ofs+frag->size);
end = frag->ofs + frag->size;
continue;
}
if (!frag->node || !frag->node->raw) {
- D1(printk(KERN_DEBUG "Last frag in page is hole (0x%x-0x%x). Not expanding up.\n",
- frag->ofs, frag->ofs+frag->size));
+ jffs2_dbg(1, "Last frag in page is hole (0x%x-0x%x). Not expanding up.\n",
+ frag->ofs, frag->ofs+frag->size);
break;
} else {
@@ -1221,25 +1245,31 @@ static int jffs2_garbage_collect_dnode(struct jffs2_sb_info *c, struct jffs2_era
jeb = &c->blocks[raw->flash_offset / c->sector_size];
if (jeb == c->gcblock) {
- D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in gcblock at %08x\n",
- frag->ofs, frag->ofs+frag->size, ref_offset(raw)));
+ jffs2_dbg(1, "Expanding up to cover frag (0x%x-0x%x) in gcblock at %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ ref_offset(raw));
end = frag->ofs + frag->size;
break;
}
if (!ISDIRTY(jeb->dirty_size + jeb->wasted_size)) {
- D1(printk(KERN_DEBUG "Not expanding up to cover frag (0x%x-0x%x) in clean block %08x\n",
- frag->ofs, frag->ofs+frag->size, jeb->offset));
+ jffs2_dbg(1, "Not expanding up to cover frag (0x%x-0x%x) in clean block %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ jeb->offset);
break;
}
- D1(printk(KERN_DEBUG "Expanding up to cover frag (0x%x-0x%x) in dirty block %08x\n",
- frag->ofs, frag->ofs+frag->size, jeb->offset));
+ jffs2_dbg(1, "Expanding up to cover frag (0x%x-0x%x) in dirty block %08x\n",
+ frag->ofs,
+ frag->ofs + frag->size,
+ jeb->offset);
end = frag->ofs + frag->size;
break;
}
}
- D1(printk(KERN_DEBUG "Expanded dnode to write from (0x%x-0x%x) to (0x%x-0x%x)\n",
- orig_start, orig_end, start, end));
+ jffs2_dbg(1, "Expanded dnode to write from (0x%x-0x%x) to (0x%x-0x%x)\n",
+ orig_start, orig_end, start, end);
D1(BUG_ON(end > frag_last(&f->fragtree)->ofs + frag_last(&f->fragtree)->size));
BUG_ON(end < orig_end);
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 05:10:18 +0000