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-rw-r--r--fs/ufs/balloc.c46
-rw-r--r--fs/ufs/inode.c14
-rw-r--r--fs/ufs/truncate.c4
3 files changed, 41 insertions, 23 deletions
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 2e0021e8f366..638f4c585e89 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -227,24 +227,27 @@ failed:
* We can come here from ufs_writepage or ufs_prepare_write,
* locked_page is argument of these functions, so we already lock it.
*/
-static void ufs_change_blocknr(struct inode *inode, unsigned int baseblk,
+static void ufs_change_blocknr(struct inode *inode, unsigned int beg,
unsigned int count, unsigned int oldb,
unsigned int newb, struct page *locked_page)
{
- unsigned int blk_per_page = 1 << (PAGE_CACHE_SHIFT - inode->i_blkbits);
- struct address_space *mapping = inode->i_mapping;
- pgoff_t index, cur_index = locked_page->index;
- unsigned int i, j;
+ const unsigned mask = (1 << (PAGE_CACHE_SHIFT - inode->i_blkbits)) - 1;
+ struct address_space * const mapping = inode->i_mapping;
+ pgoff_t index, cur_index;
+ unsigned end, pos, j;
struct page *page;
struct buffer_head *head, *bh;
UFSD("ENTER, ino %lu, count %u, oldb %u, newb %u\n",
inode->i_ino, count, oldb, newb);
+ BUG_ON(!locked_page);
BUG_ON(!PageLocked(locked_page));
- for (i = 0; i < count; i += blk_per_page) {
- index = (baseblk+i) >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
+ cur_index = locked_page->index;
+
+ for (end = count + beg; beg < end; beg = (beg | mask) + 1) {
+ index = beg >> (PAGE_CACHE_SHIFT - inode->i_blkbits);
if (likely(cur_index != index)) {
page = ufs_get_locked_page(mapping, index);
@@ -253,21 +256,32 @@ static void ufs_change_blocknr(struct inode *inode, unsigned int baseblk,
} else
page = locked_page;
- j = i;
head = page_buffers(page);
bh = head;
+ pos = beg & mask;
+ for (j = 0; j < pos; ++j)
+ bh = bh->b_this_page;
+ j = 0;
do {
- if (likely(bh->b_blocknr == j + oldb && j < count)) {
- unmap_underlying_metadata(bh->b_bdev,
- bh->b_blocknr);
- bh->b_blocknr = newb + j++;
- mark_buffer_dirty(bh);
+ if (buffer_mapped(bh)) {
+ pos = bh->b_blocknr - oldb;
+ if (pos < count) {
+ UFSD(" change from %llu to %llu\n",
+ (unsigned long long)pos + oldb,
+ (unsigned long long)pos + newb);
+ bh->b_blocknr = newb + pos;
+ unmap_underlying_metadata(bh->b_bdev,
+ bh->b_blocknr);
+ mark_buffer_dirty(bh);
+ ++j;
+ }
}
bh = bh->b_this_page;
} while (bh != head);
- set_page_dirty(page);
+ if (j)
+ set_page_dirty(page);
if (likely(cur_index != index))
ufs_put_locked_page(page);
@@ -415,14 +429,14 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
}
result = ufs_alloc_fragments (inode, cgno, goal, request, err);
if (result) {
+ ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
+ locked_page != NULL);
ufs_change_blocknr(inode, fragment - oldcount, oldcount, tmp,
result, locked_page);
*p = cpu_to_fs32(sb, result);
*err = 0;
UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count);
- ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
- locked_page != NULL);
unlock_super(sb);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 2fbab0aab688..4295ca91cf85 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -242,7 +242,8 @@ repeat:
goal = tmp + uspi->s_fpb;
tmp = ufs_new_fragments (inode, p, fragment - blockoff,
goal, required + blockoff,
- err, locked_page);
+ err,
+ phys != NULL ? locked_page : NULL);
}
/*
* We will extend last allocated block
@@ -250,7 +251,7 @@ repeat:
else if (lastblock == block) {
tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff),
- err, locked_page);
+ err, phys != NULL ? locked_page : NULL);
} else /* (lastblock > block) */ {
/*
* We will allocate new block before last allocated block
@@ -261,7 +262,8 @@ repeat:
goal = tmp + uspi->s_fpb;
}
tmp = ufs_new_fragments(inode, p, fragment - blockoff,
- goal, uspi->s_fpb, err, locked_page);
+ goal, uspi->s_fpb, err,
+ phys != NULL ? locked_page : NULL);
}
if (!tmp) {
if ((!blockoff && *p) ||
@@ -438,9 +440,11 @@ int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head
* it much more readable:
*/
#define GET_INODE_DATABLOCK(x) \
- ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new, bh_result->b_page)
+ ufs_inode_getfrag(inode, x, fragment, 1, &err, &phys, &new,\
+ bh_result->b_page)
#define GET_INODE_PTR(x) \
- ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL, NULL)
+ ufs_inode_getfrag(inode, x, fragment, uspi->s_fpb, &err, NULL, NULL,\
+ bh_result->b_page)
#define GET_INDIRECT_DATABLOCK(x) \
ufs_inode_getblock(inode, bh, x, fragment, \
&err, &phys, &new, bh_result->b_page)
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index ea11d04c41a0..0437b0a6fe97 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -109,10 +109,10 @@ static int ufs_trunc_direct (struct inode * inode)
tmp = fs32_to_cpu(sb, *p);
if (!tmp )
ufs_panic (sb, "ufs_trunc_direct", "internal error");
+ frag2 -= frag1;
frag1 = ufs_fragnum (frag1);
- frag2 = ufs_fragnum (frag2);
- ufs_free_fragments (inode, tmp + frag1, frag2 - frag1);
+ ufs_free_fragments(inode, tmp + frag1, frag2);
mark_inode_dirty(inode);
frag_to_free = tmp + frag1;
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-11 03:56:03 +0300