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Diffstat (limited to 'fs/jffs2/nodemgmt.c')
-rw-r--r--fs/jffs2/nodemgmt.c276
1 files changed, 186 insertions, 90 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index 694aa5b0350..b6bd4affd9a 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -9,6 +9,8 @@
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/compiler.h>
@@ -16,6 +18,37 @@
#include "nodelist.h"
#include "debug.h"
+/*
+ * Check whether the user is allowed to write.
+ */
+static int jffs2_rp_can_write(struct jffs2_sb_info *c)
+{
+ uint32_t avail;
+ struct jffs2_mount_opts *opts = &c->mount_opts;
+
+ avail = c->dirty_size + c->free_size + c->unchecked_size +
+ c->erasing_size - c->resv_blocks_write * c->sector_size
+ - c->nospc_dirty_size;
+
+ if (avail < 2 * opts->rp_size)
+ jffs2_dbg(1, "rpsize %u, dirty_size %u, free_size %u, "
+ "erasing_size %u, unchecked_size %u, "
+ "nr_erasing_blocks %u, avail %u, resrv %u\n",
+ opts->rp_size, c->dirty_size, c->free_size,
+ c->erasing_size, c->unchecked_size,
+ c->nr_erasing_blocks, avail, c->nospc_dirty_size);
+
+ if (avail > opts->rp_size)
+ return 1;
+
+ /* Always allow root */
+ if (capable(CAP_SYS_RESOURCE))
+ return 1;
+
+ jffs2_dbg(1, "forbid writing\n");
+ return 0;
+}
+
/**
* jffs2_reserve_space - request physical space to write nodes to flash
* @c: superblock info
@@ -46,13 +79,22 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
/* align it */
minsize = PAD(minsize);
- D1(printk(KERN_DEBUG "jffs2_reserve_space(): Requested 0x%x bytes\n", minsize));
+ jffs2_dbg(1, "%s(): Requested 0x%x bytes\n", __func__, minsize);
mutex_lock(&c->alloc_sem);
- D1(printk(KERN_DEBUG "jffs2_reserve_space(): alloc sem got\n"));
+ jffs2_dbg(1, "%s(): alloc sem got\n", __func__);
spin_lock(&c->erase_completion_lock);
+ /*
+ * Check if the free space is greater then size of the reserved pool.
+ * If not, only allow root to proceed with writing.
+ */
+ if (prio != ALLOC_DELETION && !jffs2_rp_can_write(c)) {
+ ret = -ENOSPC;
+ goto out;
+ }
+
/* this needs a little more thought (true <tglx> :)) */
while(ret == -EAGAIN) {
while(c->nr_free_blocks + c->nr_erasing_blocks < blocksneeded) {
@@ -73,11 +115,13 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
dirty = c->dirty_size + c->erasing_size - c->nr_erasing_blocks * c->sector_size + c->unchecked_size;
if (dirty < c->nospc_dirty_size) {
if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
- D1(printk(KERN_NOTICE "jffs2_reserve_space(): Low on dirty space to GC, but it's a deletion. Allowing...\n"));
+ jffs2_dbg(1, "%s(): Low on dirty space to GC, but it's a deletion. Allowing...\n",
+ __func__);
break;
}
- D1(printk(KERN_DEBUG "dirty size 0x%08x + unchecked_size 0x%08x < nospc_dirty_size 0x%08x, returning -ENOSPC\n",
- dirty, c->unchecked_size, c->sector_size));
+ jffs2_dbg(1, "dirty size 0x%08x + unchecked_size 0x%08x < nospc_dirty_size 0x%08x, returning -ENOSPC\n",
+ dirty, c->unchecked_size,
+ c->sector_size);
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->alloc_sem);
@@ -96,12 +140,13 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
avail = c->free_size + c->dirty_size + c->erasing_size + c->unchecked_size;
if ( (avail / c->sector_size) <= blocksneeded) {
if (prio == ALLOC_DELETION && c->nr_free_blocks + c->nr_erasing_blocks >= c->resv_blocks_deletion) {
- D1(printk(KERN_NOTICE "jffs2_reserve_space(): Low on possibly available space, but it's a deletion. Allowing...\n"));
+ jffs2_dbg(1, "%s(): Low on possibly available space, but it's a deletion. Allowing...\n",
+ __func__);
break;
}
- D1(printk(KERN_DEBUG "max. available size 0x%08x < blocksneeded * sector_size 0x%08x, returning -ENOSPC\n",
- avail, blocksneeded * c->sector_size));
+ jffs2_dbg(1, "max. available size 0x%08x < blocksneeded * sector_size 0x%08x, returning -ENOSPC\n",
+ avail, blocksneeded * c->sector_size);
spin_unlock(&c->erase_completion_lock);
mutex_unlock(&c->alloc_sem);
return -ENOSPC;
@@ -109,9 +154,14 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
mutex_unlock(&c->alloc_sem);
- D1(printk(KERN_DEBUG "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, wasted_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
- c->nr_free_blocks, c->nr_erasing_blocks, c->free_size, c->dirty_size, c->wasted_size, c->used_size, c->erasing_size, c->bad_size,
- c->free_size + c->dirty_size + c->wasted_size + c->used_size + c->erasing_size + c->bad_size, c->flash_size));
+ jffs2_dbg(1, "Triggering GC pass. nr_free_blocks %d, nr_erasing_blocks %d, free_size 0x%08x, dirty_size 0x%08x, wasted_size 0x%08x, used_size 0x%08x, erasing_size 0x%08x, bad_size 0x%08x (total 0x%08x of 0x%08x)\n",
+ c->nr_free_blocks, c->nr_erasing_blocks,
+ c->free_size, c->dirty_size, c->wasted_size,
+ c->used_size, c->erasing_size, c->bad_size,
+ c->free_size + c->dirty_size +
+ c->wasted_size + c->used_size +
+ c->erasing_size + c->bad_size,
+ c->flash_size);
spin_unlock(&c->erase_completion_lock);
ret = jffs2_garbage_collect_pass(c);
@@ -124,10 +174,12 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
DECLARE_WAITQUEUE(wait, current);
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&c->erase_wait, &wait);
- D1(printk(KERN_DEBUG "%s waiting for erase to complete\n", __func__));
+ jffs2_dbg(1, "%s waiting for erase to complete\n",
+ __func__);
spin_unlock(&c->erase_completion_lock);
schedule();
+ remove_wait_queue(&c->erase_wait, &wait);
} else
spin_unlock(&c->erase_completion_lock);
} else if (ret)
@@ -144,9 +196,11 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
ret = jffs2_do_reserve_space(c, minsize, len, sumsize);
if (ret) {
- D1(printk(KERN_DEBUG "jffs2_reserve_space: ret is %d\n", ret));
+ jffs2_dbg(1, "%s(): ret is %d\n", __func__, ret);
}
}
+
+out:
spin_unlock(&c->erase_completion_lock);
if (!ret)
ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
@@ -158,19 +212,25 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
int jffs2_reserve_space_gc(struct jffs2_sb_info *c, uint32_t minsize,
uint32_t *len, uint32_t sumsize)
{
- int ret = -EAGAIN;
+ int ret;
minsize = PAD(minsize);
- D1(printk(KERN_DEBUG "jffs2_reserve_space_gc(): Requested 0x%x bytes\n", minsize));
+ jffs2_dbg(1, "%s(): Requested 0x%x bytes\n", __func__, minsize);
- spin_lock(&c->erase_completion_lock);
- while(ret == -EAGAIN) {
+ while (true) {
+ spin_lock(&c->erase_completion_lock);
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));
+ jffs2_dbg(1, "%s(): looping, ret is %d\n",
+ __func__, ret);
}
+ spin_unlock(&c->erase_completion_lock);
+
+ if (ret == -EAGAIN)
+ cond_resched();
+ else
+ break;
}
- spin_unlock(&c->erase_completion_lock);
if (!ret)
ret = jffs2_prealloc_raw_node_refs(c, c->nextblock, 1);
@@ -184,8 +244,8 @@ static void jffs2_close_nextblock(struct jffs2_sb_info *c, struct jffs2_eraseblo
{
if (c->nextblock == NULL) {
- D1(printk(KERN_DEBUG "jffs2_close_nextblock: Erase block at 0x%08x has already been placed in a list\n",
- jeb->offset));
+ jffs2_dbg(1, "%s(): Erase block at 0x%08x has already been placed in a list\n",
+ __func__, jeb->offset);
return;
}
/* Check, if we have a dirty block now, or if it was dirty already */
@@ -195,17 +255,20 @@ static void jffs2_close_nextblock(struct jffs2_sb_info *c, struct jffs2_eraseblo
jeb->dirty_size += jeb->wasted_size;
jeb->wasted_size = 0;
if (VERYDIRTY(c, jeb->dirty_size)) {
- D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to very_dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
- jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ jffs2_dbg(1, "Adding full erase block at 0x%08x to very_dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->used_size);
list_add_tail(&jeb->list, &c->very_dirty_list);
} else {
- D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
- jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ jffs2_dbg(1, "Adding full erase block at 0x%08x to dirty_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->used_size);
list_add_tail(&jeb->list, &c->dirty_list);
}
} else {
- D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
- jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ jffs2_dbg(1, "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->used_size);
list_add_tail(&jeb->list, &c->clean_list);
}
c->nextblock = NULL;
@@ -230,13 +293,14 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
list_move_tail(&ejeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
jffs2_garbage_collect_trigger(c);
- D1(printk(KERN_DEBUG "jffs2_find_nextblock: Triggering erase of erasable block at 0x%08x\n",
- ejeb->offset));
+ jffs2_dbg(1, "%s(): Triggering erase of erasable block at 0x%08x\n",
+ __func__, ejeb->offset);
}
if (!c->nr_erasing_blocks &&
!list_empty(&c->erasable_pending_wbuf_list)) {
- D1(printk(KERN_DEBUG "jffs2_find_nextblock: Flushing write buffer\n"));
+ jffs2_dbg(1, "%s(): Flushing write buffer\n",
+ __func__);
/* c->nextblock is NULL, no update to c->nextblock allowed */
spin_unlock(&c->erase_completion_lock);
jffs2_flush_wbuf_pad(c);
@@ -248,9 +312,11 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
if (!c->nr_erasing_blocks) {
/* Ouch. We're in GC, or we wouldn't have got here.
And there's no space left. At all. */
- printk(KERN_CRIT "Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasableempty: %s, erasingempty: %s, erasependingempty: %s)\n",
- c->nr_erasing_blocks, c->nr_free_blocks, list_empty(&c->erasable_list)?"yes":"no",
- list_empty(&c->erasing_list)?"yes":"no", list_empty(&c->erase_pending_list)?"yes":"no");
+ pr_crit("Argh. No free space left for GC. nr_erasing_blocks is %d. nr_free_blocks is %d. (erasableempty: %s, erasingempty: %s, erasependingempty: %s)\n",
+ c->nr_erasing_blocks, c->nr_free_blocks,
+ list_empty(&c->erasable_list) ? "yes" : "no",
+ list_empty(&c->erasing_list) ? "yes" : "no",
+ list_empty(&c->erase_pending_list) ? "yes" : "no");
return -ENOSPC;
}
@@ -278,7 +344,8 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
c->wbuf_ofs = 0xffffffff;
#endif
- D1(printk(KERN_DEBUG "jffs2_find_nextblock(): new nextblock = 0x%08x\n", c->nextblock->offset));
+ jffs2_dbg(1, "%s(): new nextblock = 0x%08x\n",
+ __func__, c->nextblock->offset);
return 0;
}
@@ -345,7 +412,8 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
if (jffs2_wbuf_dirty(c)) {
spin_unlock(&c->erase_completion_lock);
- D1(printk(KERN_DEBUG "jffs2_do_reserve_space: Flushing write buffer\n"));
+ jffs2_dbg(1, "%s(): Flushing write buffer\n",
+ __func__);
jffs2_flush_wbuf_pad(c);
spin_lock(&c->erase_completion_lock);
jeb = c->nextblock;
@@ -355,14 +423,16 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
spin_unlock(&c->erase_completion_lock);
ret = jffs2_prealloc_raw_node_refs(c, jeb, 1);
- if (ret)
- return ret;
+
/* Just lock it again and continue. Nothing much can change because
we hold c->alloc_sem anyway. In fact, it's not entirely clear why
we hold c->erase_completion_lock in the majority of this function...
but that's a question for another (more caffeine-rich) day. */
spin_lock(&c->erase_completion_lock);
+ if (ret)
+ return ret;
+
waste = jeb->free_size;
jffs2_link_node_ref(c, jeb,
(jeb->offset + c->sector_size - waste) | REF_OBSOLETE,
@@ -387,7 +457,8 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
jeb = c->nextblock;
if (jeb->free_size != c->sector_size - c->cleanmarker_size) {
- printk(KERN_WARNING "Eep. Block 0x%08x taken from free_list had free_size of 0x%08x!!\n", jeb->offset, jeb->free_size);
+ pr_warn("Eep. Block 0x%08x taken from free_list had free_size of 0x%08x!!\n",
+ jeb->offset, jeb->free_size);
goto restart;
}
}
@@ -408,8 +479,9 @@ static int jffs2_do_reserve_space(struct jffs2_sb_info *c, uint32_t minsize,
spin_lock(&c->erase_completion_lock);
}
- 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)));
+ jffs2_dbg(1, "%s(): Giving 0x%x bytes at 0x%x\n",
+ __func__,
+ *len, jeb->offset + (c->sector_size - jeb->free_size));
return 0;
}
@@ -434,20 +506,22 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
jeb = &c->blocks[ofs / c->sector_size];
- D1(printk(KERN_DEBUG "jffs2_add_physical_node_ref(): Node at 0x%x(%d), size 0x%x\n",
- ofs & ~3, ofs & 3, len));
+ jffs2_dbg(1, "%s(): Node at 0x%x(%d), size 0x%x\n",
+ __func__, ofs & ~3, ofs & 3, len);
#if 1
/* Allow non-obsolete nodes only to be added at the end of c->nextblock,
if c->nextblock is set. Note that wbuf.c will file obsolete nodes
even after refiling c->nextblock */
if ((c->nextblock || ((ofs & 3) != REF_OBSOLETE))
&& (jeb != c->nextblock || (ofs & ~3) != jeb->offset + (c->sector_size - jeb->free_size))) {
- printk(KERN_WARNING "argh. node added in wrong place at 0x%08x(%d)\n", ofs & ~3, ofs & 3);
+ pr_warn("argh. node added in wrong place at 0x%08x(%d)\n",
+ ofs & ~3, ofs & 3);
if (c->nextblock)
- printk(KERN_WARNING "nextblock 0x%08x", c->nextblock->offset);
+ pr_warn("nextblock 0x%08x", c->nextblock->offset);
else
- printk(KERN_WARNING "No nextblock");
- printk(", expected at %08x\n", jeb->offset + (c->sector_size - jeb->free_size));
+ pr_warn("No nextblock");
+ pr_cont(", expected at %08x\n",
+ jeb->offset + (c->sector_size - jeb->free_size));
return ERR_PTR(-EINVAL);
}
#endif
@@ -457,8 +531,9 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
if (!jeb->free_size && !jeb->dirty_size && !ISDIRTY(jeb->wasted_size)) {
/* If it lives on the dirty_list, jffs2_reserve_space will put it there */
- D1(printk(KERN_DEBUG "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
- jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ jffs2_dbg(1, "Adding full erase block at 0x%08x to clean_list (free 0x%08x, dirty 0x%08x, used 0x%08x\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->used_size);
if (jffs2_wbuf_dirty(c)) {
/* Flush the last write in the block if it's outstanding */
spin_unlock(&c->erase_completion_lock);
@@ -480,7 +555,7 @@ struct jffs2_raw_node_ref *jffs2_add_physical_node_ref(struct jffs2_sb_info *c,
void jffs2_complete_reservation(struct jffs2_sb_info *c)
{
- D1(printk(KERN_DEBUG "jffs2_complete_reservation()\n"));
+ jffs2_dbg(1, "jffs2_complete_reservation()\n");
spin_lock(&c->erase_completion_lock);
jffs2_garbage_collect_trigger(c);
spin_unlock(&c->erase_completion_lock);
@@ -493,7 +568,7 @@ static inline int on_list(struct list_head *obj, struct list_head *head)
list_for_each(this, head) {
if (this == obj) {
- D1(printk("%p is on list at %p\n", obj, head));
+ jffs2_dbg(1, "%p is on list at %p\n", obj, head);
return 1;
}
@@ -511,16 +586,18 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
uint32_t freed_len;
if(unlikely(!ref)) {
- printk(KERN_NOTICE "EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
+ pr_notice("EEEEEK. jffs2_mark_node_obsolete called with NULL node\n");
return;
}
if (ref_obsolete(ref)) {
- D1(printk(KERN_DEBUG "jffs2_mark_node_obsolete called with already obsolete node at 0x%08x\n", ref_offset(ref)));
+ jffs2_dbg(1, "%s(): called with already obsolete node at 0x%08x\n",
+ __func__, ref_offset(ref));
return;
}
blocknr = ref->flash_offset / c->sector_size;
if (blocknr >= c->nr_blocks) {
- printk(KERN_NOTICE "raw node at 0x%08x is off the end of device!\n", ref->flash_offset);
+ pr_notice("raw node at 0x%08x is off the end of device!\n",
+ ref->flash_offset);
BUG();
}
jeb = &c->blocks[blocknr];
@@ -542,27 +619,31 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
if (ref_flags(ref) == REF_UNCHECKED) {
D1(if (unlikely(jeb->unchecked_size < freed_len)) {
- printk(KERN_NOTICE "raw unchecked node of size 0x%08x freed from erase block %d at 0x%08x, but unchecked_size was already 0x%08x\n",
- freed_len, blocknr, ref->flash_offset, jeb->used_size);
+ pr_notice("raw unchecked node of size 0x%08x freed from erase block %d at 0x%08x, but unchecked_size was already 0x%08x\n",
+ freed_len, blocknr,
+ ref->flash_offset, jeb->used_size);
BUG();
})
- D1(printk(KERN_DEBUG "Obsoleting previously unchecked node at 0x%08x of len %x: ", ref_offset(ref), freed_len));
+ jffs2_dbg(1, "Obsoleting previously unchecked node at 0x%08x of len %x\n",
+ ref_offset(ref), freed_len);
jeb->unchecked_size -= freed_len;
c->unchecked_size -= freed_len;
} else {
D1(if (unlikely(jeb->used_size < freed_len)) {
- printk(KERN_NOTICE "raw node of size 0x%08x freed from erase block %d at 0x%08x, but used_size was already 0x%08x\n",
- freed_len, blocknr, ref->flash_offset, jeb->used_size);
+ pr_notice("raw node of size 0x%08x freed from erase block %d at 0x%08x, but used_size was already 0x%08x\n",
+ freed_len, blocknr,
+ ref->flash_offset, jeb->used_size);
BUG();
})
- D1(printk(KERN_DEBUG "Obsoleting node at 0x%08x of len %#x: ", ref_offset(ref), freed_len));
+ jffs2_dbg(1, "Obsoleting node at 0x%08x of len %#x: ",
+ ref_offset(ref), freed_len);
jeb->used_size -= freed_len;
c->used_size -= freed_len;
}
// Take care, that wasted size is taken into concern
if ((jeb->dirty_size || ISDIRTY(jeb->wasted_size + freed_len)) && jeb != c->nextblock) {
- D1(printk("Dirtying\n"));
+ jffs2_dbg(1, "Dirtying\n");
addedsize = freed_len;
jeb->dirty_size += freed_len;
c->dirty_size += freed_len;
@@ -570,12 +651,12 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
/* Convert wasted space to dirty, if not a bad block */
if (jeb->wasted_size) {
if (on_list(&jeb->list, &c->bad_used_list)) {
- D1(printk(KERN_DEBUG "Leaving block at %08x on the bad_used_list\n",
- jeb->offset));
+ jffs2_dbg(1, "Leaving block at %08x on the bad_used_list\n",
+ jeb->offset);
addedsize = 0; /* To fool the refiling code later */
} else {
- D1(printk(KERN_DEBUG "Converting %d bytes of wasted space to dirty in block at %08x\n",
- jeb->wasted_size, jeb->offset));
+ jffs2_dbg(1, "Converting %d bytes of wasted space to dirty in block at %08x\n",
+ jeb->wasted_size, jeb->offset);
addedsize += jeb->wasted_size;
jeb->dirty_size += jeb->wasted_size;
c->dirty_size += jeb->wasted_size;
@@ -584,7 +665,7 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
}
}
} else {
- D1(printk("Wasting\n"));
+ jffs2_dbg(1, "Wasting\n");
addedsize = 0;
jeb->wasted_size += freed_len;
c->wasted_size += freed_len;
@@ -606,50 +687,57 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
}
if (jeb == c->nextblock) {
- D2(printk(KERN_DEBUG "Not moving nextblock 0x%08x to dirty/erase_pending list\n", jeb->offset));
+ jffs2_dbg(2, "Not moving nextblock 0x%08x to dirty/erase_pending list\n",
+ jeb->offset);
} else if (!jeb->used_size && !jeb->unchecked_size) {
if (jeb == c->gcblock) {
- D1(printk(KERN_DEBUG "gcblock at 0x%08x completely dirtied. Clearing gcblock...\n", jeb->offset));
+ jffs2_dbg(1, "gcblock at 0x%08x completely dirtied. Clearing gcblock...\n",
+ jeb->offset);
c->gcblock = NULL;
} else {
- D1(printk(KERN_DEBUG "Eraseblock at 0x%08x completely dirtied. Removing from (dirty?) list...\n", jeb->offset));
+ jffs2_dbg(1, "Eraseblock at 0x%08x completely dirtied. Removing from (dirty?) list...\n",
+ jeb->offset);
list_del(&jeb->list);
}
if (jffs2_wbuf_dirty(c)) {
- D1(printk(KERN_DEBUG "...and adding to erasable_pending_wbuf_list\n"));
+ jffs2_dbg(1, "...and adding to erasable_pending_wbuf_list\n");
list_add_tail(&jeb->list, &c->erasable_pending_wbuf_list);
} else {
if (jiffies & 127) {
/* Most of the time, we just erase it immediately. Otherwise we
spend ages scanning it on mount, etc. */
- D1(printk(KERN_DEBUG "...and adding to erase_pending_list\n"));
+ jffs2_dbg(1, "...and adding to erase_pending_list\n");
list_add_tail(&jeb->list, &c->erase_pending_list);
c->nr_erasing_blocks++;
jffs2_garbage_collect_trigger(c);
} else {
/* Sometimes, however, we leave it elsewhere so it doesn't get
immediately reused, and we spread the load a bit. */
- D1(printk(KERN_DEBUG "...and adding to erasable_list\n"));
+ jffs2_dbg(1, "...and adding to erasable_list\n");
list_add_tail(&jeb->list, &c->erasable_list);
}
}
- D1(printk(KERN_DEBUG "Done OK\n"));
+ jffs2_dbg(1, "Done OK\n");
} else if (jeb == c->gcblock) {
- D2(printk(KERN_DEBUG "Not moving gcblock 0x%08x to dirty_list\n", jeb->offset));
+ jffs2_dbg(2, "Not moving gcblock 0x%08x to dirty_list\n",
+ jeb->offset);
} else if (ISDIRTY(jeb->dirty_size) && !ISDIRTY(jeb->dirty_size - addedsize)) {
- D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is freshly dirtied. Removing from clean list...\n", jeb->offset));
+ jffs2_dbg(1, "Eraseblock at 0x%08x is freshly dirtied. Removing from clean list...\n",
+ jeb->offset);
list_del(&jeb->list);
- D1(printk(KERN_DEBUG "...and adding to dirty_list\n"));
+ jffs2_dbg(1, "...and adding to dirty_list\n");
list_add_tail(&jeb->list, &c->dirty_list);
} else if (VERYDIRTY(c, jeb->dirty_size) &&
!VERYDIRTY(c, jeb->dirty_size - addedsize)) {
- D1(printk(KERN_DEBUG "Eraseblock at 0x%08x is now very dirty. Removing from dirty list...\n", jeb->offset));
+ jffs2_dbg(1, "Eraseblock at 0x%08x is now very dirty. Removing from dirty list...\n",
+ jeb->offset);
list_del(&jeb->list);
- D1(printk(KERN_DEBUG "...and adding to very_dirty_list\n"));
+ jffs2_dbg(1, "...and adding to very_dirty_list\n");
list_add_tail(&jeb->list, &c->very_dirty_list);
} else {
- D1(printk(KERN_DEBUG "Eraseblock at 0x%08x not moved anywhere. (free 0x%08x, dirty 0x%08x, used 0x%08x)\n",
- jeb->offset, jeb->free_size, jeb->dirty_size, jeb->used_size));
+ jffs2_dbg(1, "Eraseblock at 0x%08x not moved anywhere. (free 0x%08x, dirty 0x%08x, used 0x%08x)\n",
+ jeb->offset, jeb->free_size, jeb->dirty_size,
+ jeb->used_size);
}
spin_unlock(&c->erase_completion_lock);
@@ -665,33 +753,40 @@ void jffs2_mark_node_obsolete(struct jffs2_sb_info *c, struct jffs2_raw_node_ref
the block hasn't _already_ been erased, and that 'ref' itself hasn't been freed yet
by jffs2_free_jeb_node_refs() in erase.c. Which is nice. */
- D1(printk(KERN_DEBUG "obliterating obsoleted node at 0x%08x\n", ref_offset(ref)));
+ jffs2_dbg(1, "obliterating obsoleted node at 0x%08x\n",
+ ref_offset(ref));
ret = jffs2_flash_read(c, ref_offset(ref), sizeof(n), &retlen, (char *)&n);
if (ret) {
- printk(KERN_WARNING "Read error reading from obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
+ pr_warn("Read error reading from obsoleted node at 0x%08x: %d\n",
+ ref_offset(ref), ret);
goto out_erase_sem;
}
if (retlen != sizeof(n)) {
- printk(KERN_WARNING "Short read from obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
+ pr_warn("Short read from obsoleted node at 0x%08x: %zd\n",
+ ref_offset(ref), retlen);
goto out_erase_sem;
}
if (PAD(je32_to_cpu(n.totlen)) != PAD(freed_len)) {
- printk(KERN_WARNING "Node totlen on flash (0x%08x) != totlen from node ref (0x%08x)\n", je32_to_cpu(n.totlen), freed_len);
+ pr_warn("Node totlen on flash (0x%08x) != totlen from node ref (0x%08x)\n",
+ je32_to_cpu(n.totlen), freed_len);
goto out_erase_sem;
}
if (!(je16_to_cpu(n.nodetype) & JFFS2_NODE_ACCURATE)) {
- D1(printk(KERN_DEBUG "Node at 0x%08x was already marked obsolete (nodetype 0x%04x)\n", ref_offset(ref), je16_to_cpu(n.nodetype)));
+ jffs2_dbg(1, "Node at 0x%08x was already marked obsolete (nodetype 0x%04x)\n",
+ ref_offset(ref), je16_to_cpu(n.nodetype));
goto out_erase_sem;
}
/* XXX FIXME: This is ugly now */
n.nodetype = cpu_to_je16(je16_to_cpu(n.nodetype) & ~JFFS2_NODE_ACCURATE);
ret = jffs2_flash_write(c, ref_offset(ref), sizeof(n), &retlen, (char *)&n);
if (ret) {
- printk(KERN_WARNING "Write error in obliterating obsoleted node at 0x%08x: %d\n", ref_offset(ref), ret);
+ pr_warn("Write error in obliterating obsoleted node at 0x%08x: %d\n",
+ ref_offset(ref), ret);
goto out_erase_sem;
}
if (retlen != sizeof(n)) {
- printk(KERN_WARNING "Short write in obliterating obsoleted node at 0x%08x: %zd\n", ref_offset(ref), retlen);
+ pr_warn("Short write in obliterating obsoleted node at 0x%08x: %zd\n",
+ ref_offset(ref), retlen);
goto out_erase_sem;
}
@@ -751,8 +846,8 @@ int jffs2_thread_should_wake(struct jffs2_sb_info *c)
return 1;
if (c->unchecked_size) {
- D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): unchecked_size %d, checked_ino #%d\n",
- c->unchecked_size, c->checked_ino));
+ jffs2_dbg(1, "jffs2_thread_should_wake(): unchecked_size %d, checked_ino #%d\n",
+ c->unchecked_size, c->checked_ino);
return 1;
}
@@ -780,8 +875,9 @@ int jffs2_thread_should_wake(struct jffs2_sb_info *c)
}
}
- D1(printk(KERN_DEBUG "jffs2_thread_should_wake(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x, vdirty_blocks %d: %s\n",
- c->nr_free_blocks, c->nr_erasing_blocks, c->dirty_size, nr_very_dirty, ret?"yes":"no"));
+ jffs2_dbg(1, "%s(): nr_free_blocks %d, nr_erasing_blocks %d, dirty_size 0x%x, vdirty_blocks %d: %s\n",
+ __func__, c->nr_free_blocks, c->nr_erasing_blocks,
+ c->dirty_size, nr_very_dirty, ret ? "yes" : "no");
return ret;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-05 18:22:22 +0000