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[JFFS2] Clean up trailing white spaces

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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2005-11-07 11:16:07 +00:00
committed by Thomas Gleixner
parent 97894cda57
commit 182ec4eee3
36 changed files with 604 additions and 605 deletions
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128
fs/jffs2/wbuf.c
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@@ -188,7 +188,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
/* Find the first node to be recovered, by skipping over every
node which ends before the wbuf starts, or which is obsolete. */
first_raw = &jeb->first_node;
while (*first_raw &&
while (*first_raw &&
(ref_obsolete(*first_raw) ||
(ref_offset(*first_raw)+ref_totlen(c, jeb, *first_raw)) < c->wbuf_ofs)) {
D1(printk(KERN_DEBUG "Skipping node at 0x%08x(%d)-0x%08x which is either before 0x%08x or obsolete\n",
@@ -237,7 +237,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
ret = c->mtd->read_ecc(c->mtd, start, c->wbuf_ofs - start, &retlen, buf, NULL, c->oobinfo);
else
ret = c->mtd->read(c->mtd, start, c->wbuf_ofs - start, &retlen, buf);
if (ret == -EBADMSG && retlen == c->wbuf_ofs - start) {
/* ECC recovered */
ret = 0;
@@ -274,15 +274,15 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *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
full, and there's nothing earlier read back from the
flash. Hence 'buf' isn't necessarily what we're writing
full, and there's nothing earlier read back from the
flash. Hence 'buf' isn't necessarily what we're writing
from. */
unsigned char *rewrite_buf = buf?:c->wbuf;
uint32_t towrite = (end-start) - ((end-start)%c->wbuf_pagesize);
D1(printk(KERN_DEBUG "Write 0x%x bytes at 0x%08x in wbuf recover\n",
towrite, ofs));
#ifdef BREAKMEHEADER
static int breakme;
if (breakme++ == 20) {
@@ -434,7 +434,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
this happens, if we have a change to a new block,
or if fsync forces us to flush the writebuffer.
if we have a switch to next page, we will not have
enough remaining space for this.
enough remaining space for this.
*/
if (pad ) {
c->wbuf_len = PAD(c->wbuf_len);
@@ -442,7 +442,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
/* Pad with JFFS2_DIRTY_BITMASK initially. this helps out ECC'd NOR
with 8 byte page size */
memset(c->wbuf + c->wbuf_len, 0, c->wbuf_pagesize - c->wbuf_len);
if ( c->wbuf_len + sizeof(struct jffs2_unknown_node) < c->wbuf_pagesize) {
struct jffs2_unknown_node *padnode = (void *)(c->wbuf + c->wbuf_len);
padnode->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
@@ -453,7 +453,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
}
/* else jffs2_flash_writev has actually filled in the rest of the
buffer for us, and will deal with the node refs etc. later. */
#ifdef BREAKME
static int breakme;
if (breakme++ == 20) {
@@ -462,9 +462,9 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize,
&retlen, brokenbuf, NULL, c->oobinfo);
ret = -EIO;
} else
} else
#endif
if (jffs2_cleanmarker_oob(c))
ret = c->mtd->write_ecc(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf, NULL, c->oobinfo);
else
@@ -485,7 +485,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
}
spin_lock(&c->erase_completion_lock);
/* Adjust free size of the block if we padded. */
if (pad) {
struct jffs2_eraseblock *jeb;
@@ -495,7 +495,7 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
D1(printk(KERN_DEBUG "jffs2_flush_wbuf() adjusting free_size of %sblock at %08x\n",
(jeb==c->nextblock)?"next":"", jeb->offset));
/* wbuf_pagesize - wbuf_len is the amount of space that's to be
/* wbuf_pagesize - wbuf_len is the amount of space that's to be
padded. If there is less free space in the block than that,
something screwed up */
if (jeb->free_size < (c->wbuf_pagesize - c->wbuf_len)) {
@@ -523,9 +523,9 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
return 0;
}
/* Trigger garbage collection to flush the write-buffer.
/* Trigger garbage collection to flush the write-buffer.
If ino arg is zero, do it if _any_ real (i.e. not GC) writes are
outstanding. If ino arg non-zero, do it only if a write for the
outstanding. If ino arg non-zero, do it only if a write for the
given inode is outstanding. */
int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino)
{
@@ -620,13 +620,13 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
/* If not NAND flash, don't bother */
if (!jffs2_is_writebuffered(c))
return jffs2_flash_direct_writev(c, invecs, count, to, retlen);
down_write(&c->wbuf_sem);
/* If wbuf_ofs is not initialized, set it to target address */
if (c->wbuf_ofs == 0xFFFFFFFF) {
c->wbuf_ofs = PAGE_DIV(to);
c->wbuf_len = PAGE_MOD(to);
c->wbuf_len = PAGE_MOD(to);
memset(c->wbuf,0xff,c->wbuf_pagesize);
}
@@ -640,10 +640,10 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
memset(c->wbuf,0xff,c->wbuf_pagesize);
}
}
/* Sanity checks on target address.
It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs),
and it's permitted to write at the beginning of a new
/* Sanity checks on target address.
It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs),
and it's permitted to write at the beginning of a new
erase block. Anything else, and you die.
New block starts at xxx000c (0-b = block header)
*/
@@ -661,8 +661,8 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
}
/* set pointer to new block */
c->wbuf_ofs = PAGE_DIV(to);
c->wbuf_len = PAGE_MOD(to);
}
c->wbuf_len = PAGE_MOD(to);
}
if (to != PAD(c->wbuf_ofs + c->wbuf_len)) {
/* We're not writing immediately after the writebuffer. Bad. */
@@ -682,21 +682,21 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
invec = 0;
outvec = 0;
/* Fill writebuffer first, if already in use */
/* Fill writebuffer first, if already in use */
if (c->wbuf_len) {
uint32_t invec_ofs = 0;
/* adjust alignment offset */
/* adjust alignment offset */
if (c->wbuf_len != PAGE_MOD(to)) {
c->wbuf_len = PAGE_MOD(to);
/* take care of alignment to next page */
if (!c->wbuf_len)
c->wbuf_len = c->wbuf_pagesize;
}
while(c->wbuf_len < c->wbuf_pagesize) {
uint32_t thislen;
if (invec == count)
goto alldone;
@@ -704,17 +704,17 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
if (thislen >= invecs[invec].iov_len)
thislen = invecs[invec].iov_len;
invec_ofs = thislen;
memcpy(c->wbuf + c->wbuf_len, invecs[invec].iov_base, thislen);
c->wbuf_len += thislen;
donelen += thislen;
/* Get next invec, if actual did not fill the buffer */
if (c->wbuf_len < c->wbuf_pagesize)
if (c->wbuf_len < c->wbuf_pagesize)
invec++;
}
}
/* write buffer is full, flush buffer */
ret = __jffs2_flush_wbuf(c, NOPAD);
if (ret) {
@@ -773,10 +773,10 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
/* We did cross a page boundary, so we write some now */
if (jffs2_cleanmarker_oob(c))
ret = c->mtd->writev_ecc(c->mtd, outvecs, splitvec+1, outvec_to, &wbuf_retlen, NULL, c->oobinfo);
ret = c->mtd->writev_ecc(c->mtd, outvecs, splitvec+1, outvec_to, &wbuf_retlen, NULL, c->oobinfo);
else
ret = jffs2_flash_direct_writev(c, outvecs, splitvec+1, outvec_to, &wbuf_retlen);
if (ret < 0 || wbuf_retlen != PAGE_DIV(totlen)) {
/* At this point we have no problem,
c->wbuf is empty. However refile nextblock to avoid
@@ -793,7 +793,7 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
spin_unlock(&c->erase_completion_lock);
goto exit;
}
donelen += wbuf_retlen;
c->wbuf_ofs = PAGE_DIV(outvec_to) + PAGE_DIV(totlen);
@@ -837,7 +837,7 @@ alldone:
jffs2_wbuf_dirties_inode(c, ino);
ret = 0;
exit:
up_write(&c->wbuf_sem);
return ret;
@@ -880,18 +880,18 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re
if ( (ret == -EBADMSG) && (*retlen == len) ) {
printk(KERN_WARNING "mtd->read(0x%zx bytes from 0x%llx) returned ECC error\n",
len, ofs);
/*
* We have the raw data without ECC correction in the buffer, maybe
/*
* We have the raw data without ECC correction in the buffer, maybe
* we are lucky and all data or parts are correct. We check the node.
* If data are corrupted node check will sort it out.
* We keep this block, it will fail on write or erase and the we
* mark it bad. Or should we do that now? But we should give him a chance.
* Maybe we had a system crash or power loss before the ecc write or
* Maybe we had a system crash or power loss before the ecc write or
* a erase was completed.
* So we return success. :)
*/
ret = 0;
}
}
/* if no writebuffer available or write buffer empty, return */
if (!c->wbuf_pagesize || !c->wbuf_len)
@@ -906,16 +906,16 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re
if (owbf > c->wbuf_len) /* is read beyond write buffer ? */
goto exit;
lwbf = c->wbuf_len - owbf; /* number of bytes to copy */
if (lwbf > len)
if (lwbf > len)
lwbf = len;
} else {
} else {
orbf = (c->wbuf_ofs - ofs); /* offset in read buffer */
if (orbf > len) /* is write beyond write buffer ? */
goto exit;
lwbf = len - orbf; /* number of bytes to copy */
if (lwbf > c->wbuf_len)
if (lwbf > c->wbuf_len)
lwbf = c->wbuf_len;
}
}
if (lwbf > 0)
memcpy(buf+orbf,c->wbuf+owbf,lwbf);
@@ -943,7 +943,7 @@ int jffs2_check_oob_empty( struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
printk(KERN_NOTICE "jffs2_check_oob_empty(): allocation of temporary data buffer for oob check failed\n");
return -ENOMEM;
}
/*
/*
* if mode = 0, we scan for a total empty oob area, else we have
* to take care of the cleanmarker in the first page of the block
*/
@@ -952,41 +952,41 @@ int jffs2_check_oob_empty( struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb
D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB failed %d for block at %08x\n", ret, jeb->offset));
goto out;
}
if (retlen < len) {
D1(printk(KERN_WARNING "jffs2_check_oob_empty(): Read OOB return short read "
"(%zd bytes not %d) for block at %08x\n", retlen, len, jeb->offset));
ret = -EIO;
goto out;
}
/* Special check for first page */
for(i = 0; i < oob_size ; i++) {
/* Yeah, we know about the cleanmarker. */
if (mode && i >= c->fsdata_pos &&
if (mode && i >= c->fsdata_pos &&
i < c->fsdata_pos + c->fsdata_len)
continue;
if (buf[i] != 0xFF) {
D2(printk(KERN_DEBUG "Found %02x at %x in OOB for %08x\n",
buf[i], i, jeb->offset));
ret = 1;
ret = 1;
goto out;
}
}
/* we know, we are aligned :) */
/* we know, we are aligned :) */
for (page = oob_size; page < len; page += sizeof(long)) {
unsigned long dat = *(unsigned long *)(&buf[page]);
if(dat != -1) {
ret = 1;
ret = 1;
goto out;
}
}
out:
kfree(buf);
kfree(buf);
return ret;
}
@@ -1068,7 +1068,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_erasebloc
n.totlen = cpu_to_je32(8);
ret = jffs2_flash_write_oob(c, jeb->offset + c->fsdata_pos, c->fsdata_len, &retlen, (unsigned char *)&n);
if (ret) {
D1(printk(KERN_WARNING "jffs2_write_nand_cleanmarker(): Write failed for block at %08x: error %d\n", jeb->offset, ret));
return ret;
@@ -1080,7 +1080,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_erasebloc
return 0;
}
/*
/*
* On NAND we try to mark this block bad. If the block was erased more
* than MAX_ERASE_FAILURES we mark it finaly bad.
* Don't care about failures. This block remains on the erase-pending
@@ -1101,7 +1101,7 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *
D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Marking bad block at %08x\n", bad_offset));
ret = c->mtd->block_markbad(c->mtd, bad_offset);
if (ret) {
D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Write failed for block at %08x: error %d\n", jeb->offset, ret));
return ret;
@@ -1125,7 +1125,7 @@ static int jffs2_nand_set_oobinfo(struct jffs2_sb_info *c)
/* Do this only, if we have an oob buffer */
if (!c->mtd->oobsize)
return 0;
/* Cleanmarker is out-of-band, so inline size zero */
c->cleanmarker_size = 0;
@@ -1151,7 +1151,7 @@ static int jffs2_nand_set_oobinfo(struct jffs2_sb_info *c)
c->fsdata_len = NAND_JFFS2_OOB16_FSDALEN;
c->badblock_pos = 15;
break;
default:
D1(printk(KERN_DEBUG "JFFS2 on NAND. No autoplacment info found\n"));
return -EINVAL;
@@ -1168,7 +1168,7 @@ int jffs2_nand_flash_setup(struct jffs2_sb_info *c)
init_rwsem(&c->wbuf_sem);
c->wbuf_pagesize = c->mtd->oobblock;
c->wbuf_ofs = 0xFFFFFFFF;
c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
if (!c->wbuf)
return -ENOMEM;
@@ -1194,13 +1194,13 @@ void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c)
int jffs2_dataflash_setup(struct jffs2_sb_info *c) {
c->cleanmarker_size = 0; /* No cleanmarkers needed */
/* Initialize write buffer */
init_rwsem(&c->wbuf_sem);
c->wbuf_pagesize = c->mtd->erasesize;
/* Find a suitable c->sector_size
* - Not too much sectors
* - Sectors have to be at least 4 K + some bytes
@@ -1210,11 +1210,11 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) {
*/
c->sector_size = 8 * c->mtd->erasesize;
while (c->sector_size < 8192) {
c->sector_size *= 2;
}
/* It may be necessary to adjust the flash size */
c->flash_size = c->mtd->size;
@@ -1222,7 +1222,7 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) {
c->flash_size = (c->flash_size / c->sector_size) * c->sector_size;
printk(KERN_WARNING "JFFS2 flash size adjusted to %dKiB\n", c->flash_size);
};
c->wbuf_ofs = 0xFFFFFFFF;
c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
if (!c->wbuf)