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-rw-r--r--fs/reiserfs/bitmap.c237
-rw-r--r--fs/reiserfs/dir.c77
-rw-r--r--fs/reiserfs/do_balan.c276
-rw-r--r--fs/reiserfs/file.c62
-rw-r--r--fs/reiserfs/fix_node.c967
-rw-r--r--fs/reiserfs/hashes.c15
-rw-r--r--fs/reiserfs/ibalance.c247
-rw-r--r--fs/reiserfs/inode.c1063
-rw-r--r--fs/reiserfs/ioctl.c23
-rw-r--r--fs/reiserfs/item_ops.c100
-rw-r--r--fs/reiserfs/journal.c1127
-rw-r--r--fs/reiserfs/lbalance.c349
-rw-r--r--fs/reiserfs/namei.c420
-rw-r--r--fs/reiserfs/objectid.c95
-rw-r--r--fs/reiserfs/prints.c152
-rw-r--r--fs/reiserfs/reiserfs.h1740
-rw-r--r--fs/reiserfs/resize.c63
-rw-r--r--fs/reiserfs/stree.c812
-rw-r--r--fs/reiserfs/super.c366
-rw-r--r--fs/reiserfs/tail_conversion.c151
-rw-r--r--fs/reiserfs/xattr.c60
-rw-r--r--fs/reiserfs/xattr.h3
-rw-r--r--fs/reiserfs/xattr_acl.c30
23 files changed, 5124 insertions, 3311 deletions
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index c3de6501a5cb..70daba6fa6a5 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -50,8 +50,10 @@ static inline void get_bit_address(struct super_block *s,
unsigned int *bmap_nr,
unsigned int *offset)
{
- /* It is in the bitmap block number equal to the block
- * number divided by the number of bits in a block. */
+ /*
+ * It is in the bitmap block number equal to the block
+ * number divided by the number of bits in a block.
+ */
*bmap_nr = block >> (s->s_blocksize_bits + 3);
/* Within that bitmap block it is located at bit offset *offset. */
*offset = block & ((s->s_blocksize << 3) - 1);
@@ -71,8 +73,10 @@ int is_reusable(struct super_block *s, b_blocknr_t block, int bit_value)
get_bit_address(s, block, &bmap, &offset);
- /* Old format filesystem? Unlikely, but the bitmaps are all up front so
- * we need to account for it. */
+ /*
+ * Old format filesystem? Unlikely, but the bitmaps are all
+ * up front so we need to account for it.
+ */
if (unlikely(test_bit(REISERFS_OLD_FORMAT,
&(REISERFS_SB(s)->s_properties)))) {
b_blocknr_t bmap1 = REISERFS_SB(s)->s_sbh->b_blocknr + 1;
@@ -108,8 +112,11 @@ int is_reusable(struct super_block *s, b_blocknr_t block, int bit_value)
return 1;
}
-/* searches in journal structures for a given block number (bmap, off). If block
- is found in reiserfs journal it suggests next free block candidate to test. */
+/*
+ * Searches in journal structures for a given block number (bmap, off).
+ * If block is found in reiserfs journal it suggests next free block
+ * candidate to test.
+ */
static inline int is_block_in_journal(struct super_block *s, unsigned int bmap,
int off, int *next)
{
@@ -120,7 +127,7 @@ static inline int is_block_in_journal(struct super_block *s, unsigned int bmap,
*next = tmp;
PROC_INFO_INC(s, scan_bitmap.in_journal_hint);
} else {
- (*next) = off + 1; /* inc offset to avoid looping. */
+ (*next) = off + 1; /* inc offset to avoid looping. */
PROC_INFO_INC(s, scan_bitmap.in_journal_nohint);
}
PROC_INFO_INC(s, scan_bitmap.retry);
@@ -129,8 +136,10 @@ static inline int is_block_in_journal(struct super_block *s, unsigned int bmap,
return 0;
}
-/* it searches for a window of zero bits with given minimum and maximum lengths in one bitmap
- * block; */
+/*
+ * Searches for a window of zero bits with given minimum and maximum
+ * lengths in one bitmap block
+ */
static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
unsigned int bmap_n, int *beg, int boundary,
int min, int max, int unfm)
@@ -146,10 +155,6 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
RFALSE(bmap_n >= reiserfs_bmap_count(s), "Bitmap %u is out of "
"range (0..%u)", bmap_n, reiserfs_bmap_count(s) - 1);
PROC_INFO_INC(s, scan_bitmap.bmap);
-/* this is unclear and lacks comments, explain how journal bitmaps
- work here for the reader. Convey a sense of the design here. What
- is a window? */
-/* - I mean `a window of zero bits' as in description of this function - Zam. */
if (!bi) {
reiserfs_error(s, "jdm-4055", "NULL bitmap info pointer "
@@ -165,15 +170,18 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
cont:
if (bi->free_count < min) {
brelse(bh);
- return 0; // No free blocks in this bitmap
+ return 0; /* No free blocks in this bitmap */
}
/* search for a first zero bit -- beginning of a window */
*beg = reiserfs_find_next_zero_le_bit
((unsigned long *)(bh->b_data), boundary, *beg);
- if (*beg + min > boundary) { /* search for a zero bit fails or the rest of bitmap block
- * cannot contain a zero window of minimum size */
+ /*
+ * search for a zero bit fails or the rest of bitmap block
+ * cannot contain a zero window of minimum size
+ */
+ if (*beg + min > boundary) {
brelse(bh);
return 0;
}
@@ -187,37 +195,63 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
next = end;
break;
}
- /* finding the other end of zero bit window requires looking into journal structures (in
- * case of searching for free blocks for unformatted nodes) */
+
+ /*
+ * finding the other end of zero bit window requires
+ * looking into journal structures (in case of
+ * searching for free blocks for unformatted nodes)
+ */
if (unfm && is_block_in_journal(s, bmap_n, end, &next))
break;
}
- /* now (*beg) points to beginning of zero bits window,
- * (end) points to one bit after the window end */
- if (end - *beg >= min) { /* it seems we have found window of proper size */
+ /*
+ * now (*beg) points to beginning of zero bits window,
+ * (end) points to one bit after the window end
+ */
+
+ /* found window of proper size */
+ if (end - *beg >= min) {
int i;
reiserfs_prepare_for_journal(s, bh, 1);
- /* try to set all blocks used checking are they still free */
+ /*
+ * try to set all blocks used checking are
+ * they still free
+ */
for (i = *beg; i < end; i++) {
- /* It seems that we should not check in journal again. */
+ /* Don't check in journal again. */
if (reiserfs_test_and_set_le_bit
(i, bh->b_data)) {
- /* bit was set by another process
- * while we slept in prepare_for_journal() */
+ /*
+ * bit was set by another process while
+ * we slept in prepare_for_journal()
+ */
PROC_INFO_INC(s, scan_bitmap.stolen);
- if (i >= *beg + min) { /* we can continue with smaller set of allocated blocks,
- * if length of this set is more or equal to `min' */
+
+ /*
+ * we can continue with smaller set
+ * of allocated blocks, if length of
+ * this set is more or equal to `min'
+ */
+ if (i >= *beg + min) {
end = i;
break;
}
- /* otherwise we clear all bit were set ... */
+
+ /*
+ * otherwise we clear all bit
+ * were set ...
+ */
while (--i >= *beg)
reiserfs_clear_le_bit
(i, bh->b_data);
reiserfs_restore_prepared_buffer(s, bh);
*beg = org;
- /* ... and search again in current block from beginning */
+
+ /*
+ * Search again in current block
+ * from beginning
+ */
goto cont;
}
}
@@ -268,11 +302,13 @@ static inline int block_group_used(struct super_block *s, u32 id)
int bm = bmap_hash_id(s, id);
struct reiserfs_bitmap_info *info = &SB_AP_BITMAP(s)[bm];
- /* If we don't have cached information on this bitmap block, we're
+ /*
+ * If we don't have cached information on this bitmap block, we're
* going to have to load it later anyway. Loading it here allows us
* to make a better decision. This favors long-term performance gain
* with a better on-disk layout vs. a short term gain of skipping the
- * read and potentially having a bad placement. */
+ * read and potentially having a bad placement.
+ */
if (info->free_count == UINT_MAX) {
struct buffer_head *bh = reiserfs_read_bitmap_block(s, bm);
brelse(bh);
@@ -305,17 +341,16 @@ __le32 reiserfs_choose_packing(struct inode * dir)
return packing;
}
-/* Tries to find contiguous zero bit window (given size) in given region of
- * bitmap and place new blocks there. Returns number of allocated blocks. */
+/*
+ * Tries to find contiguous zero bit window (given size) in given region of
+ * bitmap and place new blocks there. Returns number of allocated blocks.
+ */
static int scan_bitmap(struct reiserfs_transaction_handle *th,
b_blocknr_t * start, b_blocknr_t finish,
int min, int max, int unfm, sector_t file_block)
{
int nr_allocated = 0;
struct super_block *s = th->t_super;
- /* find every bm and bmap and bmap_nr in this file, and change them all to bitmap_blocknr
- * - Hans, it is not a block number - Zam. */
-
unsigned int bm, off;
unsigned int end_bm, end_off;
unsigned int off_max = s->s_blocksize << 3;
@@ -323,8 +358,10 @@ static int scan_bitmap(struct reiserfs_transaction_handle *th,
BUG_ON(!th->t_trans_id);
PROC_INFO_INC(s, scan_bitmap.call);
+
+ /* No point in looking for more free blocks */
if (SB_FREE_BLOCKS(s) <= 0)
- return 0; // No point in looking for more free blocks
+ return 0;
get_bit_address(s, *start, &bm, &off);
get_bit_address(s, finish, &end_bm, &end_off);
@@ -333,7 +370,8 @@ static int scan_bitmap(struct reiserfs_transaction_handle *th,
if (end_bm > reiserfs_bmap_count(s))
end_bm = reiserfs_bmap_count(s);
- /* When the bitmap is more than 10% free, anyone can allocate.
+ /*
+ * When the bitmap is more than 10% free, anyone can allocate.
* When it's less than 10% free, only files that already use the
* bitmap are allowed. Once we pass 80% full, this restriction
* is lifted.
@@ -532,7 +570,8 @@ int reiserfs_parse_alloc_options(struct super_block *s, char *options)
{
char *this_char, *value;
- REISERFS_SB(s)->s_alloc_options.bits = 0; /* clear default settings */
+ /* clear default settings */
+ REISERFS_SB(s)->s_alloc_options.bits = 0;
while ((this_char = strsep(&options, ":")) != NULL) {
if ((value = strchr(this_char, '=')) != NULL)
@@ -733,7 +772,7 @@ static inline void new_hashed_relocation(reiserfs_blocknr_hint_t * hint)
hash_in = (char *)&hint->key.k_dir_id;
} else {
if (!hint->inode) {
- //hint->search_start = hint->beg;
+ /*hint->search_start = hint->beg;*/
hash_in = (char *)&hint->key.k_dir_id;
} else
if (TEST_OPTION(displace_based_on_dirid, hint->th->t_super))
@@ -786,7 +825,8 @@ static void oid_groups(reiserfs_blocknr_hint_t * hint)
dirid = le32_to_cpu(INODE_PKEY(hint->inode)->k_dir_id);
- /* keep the root dir and it's first set of subdirs close to
+ /*
+ * keep the root dir and it's first set of subdirs close to
* the start of the disk
*/
if (dirid <= 2)
@@ -800,7 +840,8 @@ static void oid_groups(reiserfs_blocknr_hint_t * hint)
}
}
-/* returns 1 if it finds an indirect item and gets valid hint info
+/*
+ * returns 1 if it finds an indirect item and gets valid hint info
* from it, otherwise 0
*/
static int get_left_neighbor(reiserfs_blocknr_hint_t * hint)
@@ -812,8 +853,11 @@ static int get_left_neighbor(reiserfs_blocknr_hint_t * hint)
__le32 *item;
int ret = 0;
- if (!hint->path) /* reiserfs code can call this function w/o pointer to path
- * structure supplied; then we rely on supplied search_start */
+ /*
+ * reiserfs code can call this function w/o pointer to path
+ * structure supplied; then we rely on supplied search_start
+ */
+ if (!hint->path)
return 0;
path = hint->path;
@@ -825,12 +869,13 @@ static int get_left_neighbor(reiserfs_blocknr_hint_t * hint)
hint->search_start = bh->b_blocknr;
+ /*
+ * for indirect item: go to left and look for the first non-hole entry
+ * in the indirect item
+ */
if (!hint->formatted_node && is_indirect_le_ih(ih)) {
- /* for indirect item: go to left and look for the first non-hole entry
- in the indirect item */
if (pos_in_item == I_UNFM_NUM(ih))
pos_in_item--;
-// pos_in_item = I_UNFM_NUM (ih) - 1;
while (pos_in_item >= 0) {
int t = get_block_num(item, pos_in_item);
if (t) {
@@ -846,10 +891,12 @@ static int get_left_neighbor(reiserfs_blocknr_hint_t * hint)
return ret;
}
-/* should be, if formatted node, then try to put on first part of the device
- specified as number of percent with mount option device, else try to put
- on last of device. This is not to say it is good code to do so,
- but the effect should be measured. */
+/*
+ * should be, if formatted node, then try to put on first part of the device
+ * specified as number of percent with mount option device, else try to put
+ * on last of device. This is not to say it is good code to do so,
+ * but the effect should be measured.
+ */
static inline void set_border_in_hint(struct super_block *s,
reiserfs_blocknr_hint_t * hint)
{
@@ -975,21 +1022,27 @@ static void determine_search_start(reiserfs_blocknr_hint_t * hint,
set_border_in_hint(s, hint);
#ifdef DISPLACE_NEW_PACKING_LOCALITIES
- /* whenever we create a new directory, we displace it. At first we will
- hash for location, later we might look for a moderately empty place for
- it */
+ /*
+ * whenever we create a new directory, we displace it. At first
+ * we will hash for location, later we might look for a moderately
+ * empty place for it
+ */
if (displacing_new_packing_localities(s)
&& hint->th->displace_new_blocks) {
displace_new_packing_locality(hint);
- /* we do not continue determine_search_start,
- * if new packing locality is being displaced */
+ /*
+ * we do not continue determine_search_start,
+ * if new packing locality is being displaced
+ */
return;
}
#endif
- /* all persons should feel encouraged to add more special cases here and
- * test them */
+ /*
+ * all persons should feel encouraged to add more special cases
+ * here and test them
+ */
if (displacing_large_files(s) && !hint->formatted_node
&& this_blocknr_allocation_would_make_it_a_large_file(hint)) {
@@ -997,8 +1050,10 @@ static void determine_search_start(reiserfs_blocknr_hint_t * hint,
return;
}
- /* if none of our special cases is relevant, use the left neighbor in the
- tree order of the new node we are allocating for */
+ /*
+ * if none of our special cases is relevant, use the left
+ * neighbor in the tree order of the new node we are allocating for
+ */
if (hint->formatted_node && TEST_OPTION(hashed_formatted_nodes, s)) {
hash_formatted_node(hint);
return;
@@ -1006,10 +1061,13 @@ static void determine_search_start(reiserfs_blocknr_hint_t * hint,
unfm_hint = get_left_neighbor(hint);
- /* Mimic old block allocator behaviour, that is if VFS allowed for preallocation,
- new blocks are displaced based on directory ID. Also, if suggested search_start
- is less than last preallocated block, we start searching from it, assuming that
- HDD dataflow is faster in forward direction */
+ /*
+ * Mimic old block allocator behaviour, that is if VFS allowed for
+ * preallocation, new blocks are displaced based on directory ID.
+ * Also, if suggested search_start is less than last preallocated
+ * block, we start searching from it, assuming that HDD dataflow
+ * is faster in forward direction
+ */
if (TEST_OPTION(old_way, s)) {
if (!hint->formatted_node) {
if (!reiserfs_hashed_relocation(s))
@@ -1038,11 +1096,13 @@ static void determine_search_start(reiserfs_blocknr_hint_t * hint,
TEST_OPTION(old_hashed_relocation, s)) {
old_hashed_relocation(hint);
}
+
/* new_hashed_relocation works with both formatted/unformatted nodes */
if ((!unfm_hint || hint->formatted_node) &&
TEST_OPTION(new_hashed_relocation, s)) {
new_hashed_relocation(hint);
}
+
/* dirid grouping works only on unformatted nodes */
if (!unfm_hint && !hint->formatted_node && TEST_OPTION(dirid_groups, s)) {
dirid_groups(hint);
@@ -1080,8 +1140,6 @@ static int determine_prealloc_size(reiserfs_blocknr_hint_t * hint)
return CARRY_ON;
}
-/* XXX I know it could be merged with upper-level function;
- but may be result function would be too complex. */
static inline int allocate_without_wrapping_disk(reiserfs_blocknr_hint_t * hint,
b_blocknr_t * new_blocknrs,
b_blocknr_t start,
@@ -1109,7 +1167,10 @@ static inline int allocate_without_wrapping_disk(reiserfs_blocknr_hint_t * hint,
/* do we have something to fill prealloc. array also ? */
if (nr_allocated > 0) {
- /* it means prealloc_size was greater that 0 and we do preallocation */
+ /*
+ * it means prealloc_size was greater that 0 and
+ * we do preallocation
+ */
list_add(&REISERFS_I(hint->inode)->i_prealloc_list,
&SB_JOURNAL(hint->th->t_super)->
j_prealloc_list);
@@ -1177,7 +1238,8 @@ static inline int blocknrs_and_prealloc_arrays_from_search_start
start = 0;
finish = hint->beg;
break;
- default: /* We've tried searching everywhere, not enough space */
+ default:
+ /* We've tried searching everywhere, not enough space */
/* Free the blocks */
if (!hint->formatted_node) {
#ifdef REISERQUOTA_DEBUG
@@ -1262,8 +1324,11 @@ static int use_preallocated_list_if_available(reiserfs_blocknr_hint_t * hint,
return amount_needed;
}
-int reiserfs_allocate_blocknrs(reiserfs_blocknr_hint_t * hint, b_blocknr_t * new_blocknrs, int amount_needed, int reserved_by_us /* Amount of blocks we have
- already reserved */ )
+int reiserfs_allocate_blocknrs(reiserfs_blocknr_hint_t *hint,
+ b_blocknr_t *new_blocknrs,
+ int amount_needed,
+ /* Amount of blocks we have already reserved */
+ int reserved_by_us)
{
int initial_amount_needed = amount_needed;
int ret;
@@ -1275,15 +1340,21 @@ int reiserfs_allocate_blocknrs(reiserfs_blocknr_hint_t * hint, b_blocknr_t * new
return NO_DISK_SPACE;
/* should this be if !hint->inode && hint->preallocate? */
/* do you mean hint->formatted_node can be removed ? - Zam */
- /* hint->formatted_node cannot be removed because we try to access
- inode information here, and there is often no inode assotiated with
- metadata allocations - green */
+ /*
+ * hint->formatted_node cannot be removed because we try to access
+ * inode information here, and there is often no inode associated with
+ * metadata allocations - green
+ */
if (!hint->formatted_node && hint->preallocate) {
amount_needed = use_preallocated_list_if_available
(hint, new_blocknrs, amount_needed);
- if (amount_needed == 0) /* all blocknrs we need we got from
- prealloc. list */
+
+ /*
+ * We have all the block numbers we need from the
+ * prealloc list
+ */
+ if (amount_needed == 0)
return CARRY_ON;
new_blocknrs += (initial_amount_needed - amount_needed);
}
@@ -1297,10 +1368,12 @@ int reiserfs_allocate_blocknrs(reiserfs_blocknr_hint_t * hint, b_blocknr_t * new
ret = blocknrs_and_prealloc_arrays_from_search_start
(hint, new_blocknrs, amount_needed);
- /* we used prealloc. list to fill (partially) new_blocknrs array. If final allocation fails we
- * need to return blocks back to prealloc. list or just free them. -- Zam (I chose second
- * variant) */
-
+ /*
+ * We used prealloc. list to fill (partially) new_blocknrs array.
+ * If final allocation fails we need to return blocks back to
+ * prealloc. list or just free them. -- Zam (I chose second
+ * variant)
+ */
if (ret != CARRY_ON) {
while (amount_needed++ < initial_amount_needed) {
reiserfs_free_block(hint->th, hint->inode,
@@ -1339,8 +1412,10 @@ struct buffer_head *reiserfs_read_bitmap_block(struct super_block *sb,
struct reiserfs_bitmap_info *info = SB_AP_BITMAP(sb) + bitmap;
struct buffer_head *bh;
- /* Way old format filesystems had the bitmaps packed up front.
- * I doubt there are any of these left, but just in case... */
+ /*
+ * Way old format filesystems had the bitmaps packed up front.
+ * I doubt there are any of these left, but just in case...
+ */
if (unlikely(test_bit(REISERFS_OLD_FORMAT,
&(REISERFS_SB(sb)->s_properties))))
block = REISERFS_SB(sb)->s_sbh->b_blocknr + 1 + bitmap;
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 1fe5cdeb5862..8d51f28d6345 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -59,7 +59,10 @@ static inline bool is_privroot_deh(struct inode *dir, struct reiserfs_de_head *d
int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
{
- struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */
+
+ /* key of current position in the directory (key of directory entry) */
+ struct cpu_key pos_key;
+
INITIALIZE_PATH(path_to_entry);
struct buffer_head *bh;
int item_num, entry_num;
@@ -77,21 +80,28 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
reiserfs_check_lock_depth(inode->i_sb, "readdir");
- /* form key for search the next directory entry using f_pos field of
- file structure */
+ /*
+ * form key for search the next directory entry using
+ * f_pos field of file structure
+ */
make_cpu_key(&pos_key, inode, ctx->pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3);
next_pos = cpu_key_k_offset(&pos_key);
path_to_entry.reada = PATH_READA;
while (1) {
research:
- /* search the directory item, containing entry with specified key */
+ /*
+ * search the directory item, containing entry with
+ * specified key
+ */
search_res =
search_by_entry_key(inode->i_sb, &pos_key, &path_to_entry,
&de);
if (search_res == IO_ERROR) {
- // FIXME: we could just skip part of directory which could
- // not be read
+ /*
+ * FIXME: we could just skip part of directory
+ * which could not be read
+ */
ret = -EIO;
goto out;
}
@@ -109,14 +119,20 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
"vs-9005 item_num == %d, item amount == %d",
item_num, B_NR_ITEMS(bh));
- /* and entry must be not more than number of entries in the item */
+ /*
+ * and entry must be not more than number of entries
+ * in the item
+ */
RFALSE(ih_entry_count(ih) < entry_num,
"vs-9010: entry number is too big %d (%d)",
entry_num, ih_entry_count(ih));
+ /*
+ * go through all entries in the directory item beginning
+ * from the entry, that has been found
+ */
if (search_res == POSITION_FOUND
|| entry_num < ih_entry_count(ih)) {
- /* go through all entries in the directory item beginning from the entry, that has been found */
struct reiserfs_de_head *deh =
B_I_DEH(bh, ih) + entry_num;
@@ -127,16 +143,18 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
ino_t d_ino;
loff_t cur_pos = deh_offset(deh);
+ /* it is hidden entry */
if (!de_visible(deh))
- /* it is hidden entry */
continue;
d_reclen = entry_length(bh, ih, entry_num);
d_name = B_I_DEH_ENTRY_FILE_NAME(bh, ih, deh);
if (d_reclen <= 0 ||
d_name + d_reclen > bh->b_data + bh->b_size) {
- /* There is corrupted data in entry,
- * We'd better stop here */
+ /*
+ * There is corrupted data in entry,
+ * We'd better stop here
+ */
pathrelse(&path_to_entry);
ret = -EIO;
goto out;
@@ -145,10 +163,10 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
if (!d_name[d_reclen - 1])
d_reclen = strlen(d_name);
+ /* too big to send back to VFS */
if (d_reclen >
REISERFS_MAX_NAME(inode->i_sb->
s_blocksize)) {
- /* too big to send back to VFS */
continue;
}
@@ -173,10 +191,14 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
goto research;
}
}
- // Note, that we copy name to user space via temporary
- // buffer (local_buf) because filldir will block if
- // user space buffer is swapped out. At that time
- // entry can move to somewhere else
+
+ /*
+ * Note, that we copy name to user space via
+ * temporary buffer (local_buf) because
+ * filldir will block if user space buffer is
+ * swapped out. At that time entry can move to
+ * somewhere else
+ */
memcpy(local_buf, d_name, d_reclen);
/*
@@ -209,22 +231,26 @@ int reiserfs_readdir_inode(struct inode *inode, struct dir_context *ctx)
} /* for */
}
+ /* end of directory has been reached */
if (item_num != B_NR_ITEMS(bh) - 1)
- // end of directory has been reached
goto end;
- /* item we went through is last item of node. Using right
- delimiting key check is it directory end */
+ /*
+ * item we went through is last item of node. Using right
+ * delimiting key check is it directory end
+ */
rkey = get_rkey(&path_to_entry, inode->i_sb);
if (!comp_le_keys(rkey, &MIN_KEY)) {
- /* set pos_key to key, that is the smallest and greater
- that key of the last entry in the item */
+ /*
+ * set pos_key to key, that is the smallest and greater
+ * that key of the last entry in the item
+ */
set_cpu_key_k_offset(&pos_key, next_pos);
continue;
}
+ /* end of directory has been reached */
if (COMP_SHORT_KEYS(rkey, &pos_key)) {
- // end of directory has been reached
goto end;
}
@@ -248,9 +274,10 @@ static int reiserfs_readdir(struct file *file, struct dir_context *ctx)
return reiserfs_readdir_inode(file_inode(file), ctx);
}
-/* compose directory item containing "." and ".." entries (entries are
- not aligned to 4 byte boundary) */
-/* the last four params are LE */
+/*
+ * compose directory item containing "." and ".." entries (entries are
+ * not aligned to 4 byte boundary)
+ */
void make_empty_dir_item_v1(char *body, __le32 dirid, __le32 objid,
__le32 par_dirid, __le32 par_objid)
{
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 80b2b1b37169..399b2009b677 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -2,18 +2,13 @@
* Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
*/
-/* Now we have all buffers that must be used in balancing of the tree */
-/* Further calculations can not cause schedule(), and thus the buffer */
-/* tree will be stable until the balancing will be finished */
-/* balance the tree according to the analysis made before, */
-/* and using buffers obtained after all above. */
-
-/**
- ** balance_leaf_when_delete
- ** balance_leaf
- ** do_balance
- **
- **/
+/*
+ * Now we have all buffers that must be used in balancing of the tree
+ * Further calculations can not cause schedule(), and thus the buffer
+ * tree will be stable until the balancing will be finished
+ * balance the tree according to the analysis made before,
+ * and using buffers obtained after all above.
+ */
#include <asm/uaccess.h>
#include <linux/time.h>
@@ -68,35 +63,39 @@ inline void do_balance_mark_leaf_dirty(struct tree_balance *tb,
#define do_balance_mark_internal_dirty do_balance_mark_leaf_dirty
#define do_balance_mark_sb_dirty do_balance_mark_leaf_dirty
-/* summary:
- if deleting something ( tb->insert_size[0] < 0 )
- return(balance_leaf_when_delete()); (flag d handled here)
- else
- if lnum is larger than 0 we put items into the left node
- if rnum is larger than 0 we put items into the right node
- if snum1 is larger than 0 we put items into the new node s1
- if snum2 is larger than 0 we put items into the new node s2
-Note that all *num* count new items being created.
-
-It would be easier to read balance_leaf() if each of these summary
-lines was a separate procedure rather than being inlined. I think
-that there are many passages here and in balance_leaf_when_delete() in
-which two calls to one procedure can replace two passages, and it
-might save cache space and improve software maintenance costs to do so.
-
-Vladimir made the perceptive comment that we should offload most of
-the decision making in this function into fix_nodes/check_balance, and
-then create some sort of structure in tb that says what actions should
-be performed by do_balance.
-
--Hans */
-
-/* Balance leaf node in case of delete or cut: insert_size[0] < 0
+/*
+ * summary:
+ * if deleting something ( tb->insert_size[0] < 0 )
+ * return(balance_leaf_when_delete()); (flag d handled here)
+ * else
+ * if lnum is larger than 0 we put items into the left node
+ * if rnum is larger than 0 we put items into the right node
+ * if snum1 is larger than 0 we put items into the new node s1
+ * if snum2 is larger than 0 we put items into the new node s2
+ * Note that all *num* count new items being created.
+ *
+ * It would be easier to read balance_leaf() if each of these summary
+ * lines was a separate procedure rather than being inlined. I think
+ * that there are many passages here and in balance_leaf_when_delete() in
+ * which two calls to one procedure can replace two passages, and it
+ * might save cache space and improve software maintenance costs to do so.
+ *
+ * Vladimir made the perceptive comment that we should offload most of
+ * the decision making in this function into fix_nodes/check_balance, and
+ * then create some sort of structure in tb that says what actions should
+ * be performed by do_balance.
+ *
+ * -Hans
+ */
+
+/*
+ * Balance leaf node in case of delete or cut: insert_size[0] < 0
*
* lnum, rnum can have values >= -1
* -1 means that the neighbor must be joined with S
* 0 means that nothing should be done with the neighbor
- * >0 means to shift entirely or partly the specified number of items to the neighbor
+ * >0 means to shift entirely or partly the specified number of items
+ * to the neighbor
*/
static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
{
@@ -149,8 +148,16 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
case M_CUT:{ /* cut item in S[0] */
if (is_direntry_le_ih(ih)) {
- /* UFS unlink semantics are such that you can only delete one directory entry at a time. */
- /* when we cut a directory tb->insert_size[0] means number of entries to be cut (always 1) */
+ /*
+ * UFS unlink semantics are such that you
+ * can only delete one directory entry at
+ * a time.
+ */
+
+ /*
+ * when we cut a directory tb->insert_size[0]
+ * means number of entries to be cut (always 1)
+ */
tb->insert_size[0] = -1;
leaf_cut_from_buffer(&bi, item_pos, pos_in_item,
-tb->insert_size[0]);
@@ -183,13 +190,22 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
"UNKNOWN"), flag);
}
- /* the rule is that no shifting occurs unless by shifting a node can be freed */
+ /*
+ * the rule is that no shifting occurs unless by shifting
+ * a node can be freed
+ */
n = B_NR_ITEMS(tbS0);
- if (tb->lnum[0]) { /* L[0] takes part in balancing */
- if (tb->lnum[0] == -1) { /* L[0] must be joined with S[0] */
- if (tb->rnum[0] == -1) { /* R[0] must be also joined with S[0] */
+ /* L[0] takes part in balancing */
+ if (tb->lnum[0]) {
+ /* L[0] must be joined with S[0] */
+ if (tb->lnum[0] == -1) {
+ /* R[0] must be also joined with S[0] */
+ if (tb->rnum[0] == -1) {
if (tb->FR[0] == PATH_H_PPARENT(tb->tb_path, 0)) {
- /* all contents of all the 3 buffers will be in L[0] */
+ /*
+ * all contents of all the 3 buffers
+ * will be in L[0]
+ */
if (PATH_H_POSITION(tb->tb_path, 1) == 0
&& 1 < B_NR_ITEMS(tb->FR[0]))
replace_key(tb, tb->CFL[0],
@@ -208,7 +224,10 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
return 0;
}
- /* all contents of all the 3 buffers will be in R[0] */
+ /*
+ * all contents of all the 3 buffers will
+ * be in R[0]
+ */
leaf_move_items(LEAF_FROM_S_TO_R, tb, n, -1,
NULL);
leaf_move_items(LEAF_FROM_L_TO_R, tb,
@@ -233,7 +252,11 @@ static int balance_leaf_when_delete(struct tree_balance *tb, int flag)
return 0;
}
- /* a part of contents of S[0] will be in L[0] and the rest part of S[0] will be in R[0] */
+
+ /*
+ * a part of contents of S[0] will be in L[0] and the
+ * rest part of S[0] will be in R[0]
+ */
RFALSE((tb->lnum[0] + tb->rnum[0] < n) ||
(tb->lnum[0] + tb->rnum[0] > n + 1),
@@ -1178,9 +1201,7 @@ struct buffer_head *get_FEB(struct tree_balance *tb)
return tb->used[i];
}
-/* This is now used because reiserfs_free_block has to be able to
-** schedule.
-*/
+/* This is now used because reiserfs_free_block has to be able to schedule. */
static void store_thrown(struct tree_balance *tb, struct buffer_head *bh)
{
int i;
@@ -1335,8 +1356,10 @@ static int check_before_balancing(struct tree_balance *tb)
"mount point.");
}
<