summaryrefslogtreecommitdiff
path: root/fs/ext4/inode.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext4/inode.c')
-rw-r--r--fs/ext4/inode.c200
1 files changed, 103 insertions, 97 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5f927f6a1289..8d0908afbd5b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -81,7 +81,7 @@ static int ext4_inode_is_fast_symlink(struct inode *inode)
* If the handle isn't valid we're not journaling so there's nothing to do.
*/
int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
- struct buffer_head *bh, ext4_fsblk_t blocknr)
+ struct buffer_head *bh, ext4_fsblk_t blocknr)
{
int err;
@@ -332,8 +332,8 @@ static inline void add_chain(Indirect *p, struct buffer_head *bh, __le32 *v)
*/
static int ext4_block_to_path(struct inode *inode,
- ext4_lblk_t i_block,
- ext4_lblk_t offsets[4], int *boundary)
+ ext4_lblk_t i_block,
+ ext4_lblk_t offsets[4], int *boundary)
{
int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb);
int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb);
@@ -365,9 +365,9 @@ static int ext4_block_to_path(struct inode *inode,
final = ptrs;
} else {
ext4_warning(inode->i_sb, "ext4_block_to_path",
- "block %lu > max in inode %lu",
- i_block + direct_blocks +
- indirect_blocks + double_blocks, inode->i_ino);
+ "block %lu > max in inode %lu",
+ i_block + direct_blocks +
+ indirect_blocks + double_blocks, inode->i_ino);
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
@@ -382,25 +382,25 @@ static int __ext4_check_blockref(const char *function, struct inode *inode,
while (bref < p+max) {
blk = le32_to_cpu(*bref++);
- if (blk &&
- unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb),
+ if (blk &&
+ unlikely(!ext4_data_block_valid(EXT4_SB(inode->i_sb),
blk, 1))) {
ext4_error(inode->i_sb, function,
"invalid block reference %u "
"in inode #%lu", blk, inode->i_ino);
- return -EIO;
- }
- }
- return 0;
+ return -EIO;
+ }
+ }
+ return 0;
}
#define ext4_check_indirect_blockref(inode, bh) \
- __ext4_check_blockref(__func__, inode, (__le32 *)(bh)->b_data, \
+ __ext4_check_blockref(__func__, inode, (__le32 *)(bh)->b_data, \
EXT4_ADDR_PER_BLOCK((inode)->i_sb))
#define ext4_check_inode_blockref(inode) \
- __ext4_check_blockref(__func__, inode, EXT4_I(inode)->i_data, \
+ __ext4_check_blockref(__func__, inode, EXT4_I(inode)->i_data, \
EXT4_NDIR_BLOCKS)
/**
@@ -450,7 +450,7 @@ static Indirect *ext4_get_branch(struct inode *inode, int depth,
bh = sb_getblk(sb, le32_to_cpu(p->key));
if (unlikely(!bh))
goto failure;
-
+
if (!bh_uptodate_or_lock(bh)) {
if (bh_submit_read(bh) < 0) {
put_bh(bh);
@@ -462,7 +462,7 @@ static Indirect *ext4_get_branch(struct inode *inode, int depth,
goto failure;
}
}
-
+
add_chain(++p, bh, (__le32 *)bh->b_data + *++offsets);
/* Reader: end */
if (!p->key)
@@ -555,7 +555,7 @@ static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
* returns it.
*/
static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
- Indirect *partial)
+ Indirect *partial)
{
/*
* XXX need to get goal block from mballoc's data structures
@@ -577,7 +577,7 @@ static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
* direct and indirect blocks.
*/
static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned int blks,
- int blocks_to_boundary)
+ int blocks_to_boundary)
{
unsigned int count = 0;
@@ -613,9 +613,9 @@ static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned int blks,
* direct blocks
*/
static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
- ext4_lblk_t iblock, ext4_fsblk_t goal,
- int indirect_blks, int blks,
- ext4_fsblk_t new_blocks[4], int *err)
+ ext4_lblk_t iblock, ext4_fsblk_t goal,
+ int indirect_blks, int blks,
+ ext4_fsblk_t new_blocks[4], int *err)
{
struct ext4_allocation_request ar;
int target, i;
@@ -686,10 +686,10 @@ static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
}
if (!*err) {
if (target == blks) {
- /*
- * save the new block number
- * for the first direct block
- */
+ /*
+ * save the new block number
+ * for the first direct block
+ */
new_blocks[index] = current_block;
}
blk_allocated += ar.len;
@@ -731,9 +731,9 @@ failed_out:
* as described above and return 0.
*/
static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
- ext4_lblk_t iblock, int indirect_blks,
- int *blks, ext4_fsblk_t goal,
- ext4_lblk_t *offsets, Indirect *branch)
+ ext4_lblk_t iblock, int indirect_blks,
+ int *blks, ext4_fsblk_t goal,
+ ext4_lblk_t *offsets, Indirect *branch)
{
int blocksize = inode->i_sb->s_blocksize;
int i, n = 0;
@@ -780,7 +780,7 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
* the chain to point to the new allocated
* data blocks numbers
*/
- for (i=1; i < num; i++)
+ for (i = 1; i < num; i++)
*(branch[n].p + i) = cpu_to_le32(++current_block);
}
BUFFER_TRACE(bh, "marking uptodate");
@@ -823,7 +823,8 @@ failed:
* chain to new block and return 0.
*/
static int ext4_splice_branch(handle_t *handle, struct inode *inode,
- ext4_lblk_t block, Indirect *where, int num, int blks)
+ ext4_lblk_t block, Indirect *where, int num,
+ int blks)
{
int i;
int err = 0;
@@ -924,9 +925,9 @@ err_out:
* blocks.
*/
static int ext4_ind_get_blocks(handle_t *handle, struct inode *inode,
- ext4_lblk_t iblock, unsigned int maxblocks,
- struct buffer_head *bh_result,
- int flags)
+ ext4_lblk_t iblock, unsigned int maxblocks,
+ struct buffer_head *bh_result,
+ int flags)
{
int err = -EIO;
ext4_lblk_t offsets[4];
@@ -942,7 +943,7 @@ static int ext4_ind_get_blocks(handle_t *handle, struct inode *inode,
J_ASSERT(!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL));
J_ASSERT(handle != NULL || (flags & EXT4_GET_BLOCKS_CREATE) == 0);
depth = ext4_block_to_path(inode, iblock, offsets,
- &blocks_to_boundary);
+ &blocks_to_boundary);
if (depth == 0)
goto out;
@@ -990,8 +991,8 @@ static int ext4_ind_get_blocks(handle_t *handle, struct inode *inode,
* Block out ext4_truncate while we alter the tree
*/
err = ext4_alloc_branch(handle, inode, iblock, indirect_blks,
- &count, goal,
- offsets + (partial - chain), partial);
+ &count, goal,
+ offsets + (partial - chain), partial);
/*
* The ext4_splice_branch call will free and forget any buffers
@@ -1002,8 +1003,8 @@ static int ext4_ind_get_blocks(handle_t *handle, struct inode *inode,
*/
if (!err)
err = ext4_splice_branch(handle, inode, iblock,
- partial, indirect_blks, count);
- else
+ partial, indirect_blks, count);
+ else
goto cleanup;
set_buffer_new(bh_result);
@@ -1175,7 +1176,7 @@ int ext4_get_blocks(handle_t *handle, struct inode *inode, sector_t block,
up_read((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && buffer_mapped(bh)) {
- int ret = check_block_validity(inode, block,
+ int ret = check_block_validity(inode, block,
bh->b_blocknr, retval);
if (ret != 0)
return ret;
@@ -1257,7 +1258,7 @@ int ext4_get_blocks(handle_t *handle, struct inode *inode, sector_t block,
up_write((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && buffer_mapped(bh)) {
- int ret = check_block_validity(inode, block,
+ int ret = check_block_validity(inode, block,
bh->b_blocknr, retval);
if (ret != 0)
return ret;
@@ -1408,8 +1409,7 @@ static int walk_page_buffers(handle_t *handle,
for (bh = head, block_start = 0;
ret == 0 && (bh != head || !block_start);
- block_start = block_end, bh = next)
- {
+ block_start = block_end, bh = next) {
next = bh->b_this_page;
block_end = block_start + blocksize;
if (block_end <= from || block_start >= to) {
@@ -1450,7 +1450,7 @@ static int walk_page_buffers(handle_t *handle,
* write.
*/
static int do_journal_get_write_access(handle_t *handle,
- struct buffer_head *bh)
+ struct buffer_head *bh)
{
if (!buffer_mapped(bh) || buffer_freed(bh))
return 0;
@@ -1458,15 +1458,15 @@ static int do_journal_get_write_access(handle_t *handle,
}
static int ext4_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata)
{
struct inode *inode = mapping->host;
int ret, needed_blocks;
handle_t *handle;
int retries = 0;
struct page *page;
- pgoff_t index;
+ pgoff_t index;
unsigned from, to;
trace_ext4_write_begin(inode, pos, len, flags);
@@ -1475,7 +1475,7 @@ static int ext4_write_begin(struct file *file, struct address_space *mapping,
* we allocate blocks but write fails for some reason
*/
needed_blocks = ext4_writepage_trans_blocks(inode) + 1;
- index = pos >> PAGE_CACHE_SHIFT;
+ index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1523,7 +1523,7 @@ retry:
ext4_journal_stop(handle);
if (pos + len > inode->i_size) {
vmtruncate(inode, inode->i_size);
- /*
+ /*
* If vmtruncate failed early the inode might
* still be on the orphan list; we need to
* make sure the inode is removed from the
@@ -1550,9 +1550,9 @@ static int write_end_fn(handle_t *handle, struct buffer_head *bh)
}
static int ext4_generic_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
int i_size_changed = 0;
struct inode *inode = mapping->host;
@@ -1603,9 +1603,9 @@ static int ext4_generic_write_end(struct file *file,
* buffers are managed internally.
*/
static int ext4_ordered_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
handle_t *handle = ext4_journal_current_handle();
struct inode *inode = mapping->host;
@@ -1633,7 +1633,7 @@ static int ext4_ordered_write_end(struct file *file,
if (pos + len > inode->i_size) {
vmtruncate(inode, inode->i_size);
- /*
+ /*
* If vmtruncate failed early the inode might still be
* on the orphan list; we need to make sure the inode
* is removed from the orphan list in that case.
@@ -1647,9 +1647,9 @@ static int ext4_ordered_write_end(struct file *file,
}
static int ext4_writeback_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
handle_t *handle = ext4_journal_current_handle();
struct inode *inode = mapping->host;
@@ -1675,7 +1675,7 @@ static int ext4_writeback_write_end(struct file *file,
if (pos + len > inode->i_size) {
vmtruncate(inode, inode->i_size);
- /*
+ /*
* If vmtruncate failed early the inode might still be
* on the orphan list; we need to make sure the inode
* is removed from the orphan list in that case.
@@ -1688,9 +1688,9 @@ static int ext4_writeback_write_end(struct file *file,
}
static int ext4_journalled_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
handle_t *handle = ext4_journal_current_handle();
struct inode *inode = mapping->host;
@@ -1738,7 +1738,7 @@ static int ext4_journalled_write_end(struct file *file,
ret = ret2;
if (pos + len > inode->i_size) {
vmtruncate(inode, inode->i_size);
- /*
+ /*
* If vmtruncate failed early the inode might still be
* on the orphan list; we need to make sure the inode
* is removed from the orphan list in that case.
@@ -1845,7 +1845,7 @@ static void ext4_da_release_space(struct inode *inode, int to_free)
}
static void ext4_da_page_release_reservation(struct page *page,
- unsigned long offset)
+ unsigned long offset)
{
int to_release = 0;
struct buffer_head *head, *bh;
@@ -2854,8 +2854,8 @@ static int ext4_nonda_switch(struct super_block *sb)
}
static int ext4_da_write_begin(struct file *file, struct address_space *mapping,
- loff_t pos, unsigned len, unsigned flags,
- struct page **pagep, void **fsdata)
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata)
{
int ret, retries = 0;
struct page *page;
@@ -2925,7 +2925,7 @@ out:
* when write to the end of file but not require block allocation
*/
static int ext4_da_should_update_i_disksize(struct page *page,
- unsigned long offset)
+ unsigned long offset)
{
struct buffer_head *bh;
struct inode *inode = page->mapping->host;
@@ -2944,9 +2944,9 @@ static int ext4_da_should_update_i_disksize(struct page *page,
}
static int ext4_da_write_end(struct file *file,
- struct address_space *mapping,
- loff_t pos, unsigned len, unsigned copied,
- struct page *page, void *fsdata)
+ struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
struct inode *inode = mapping->host;
int ret = 0, ret2;
@@ -3044,7 +3044,7 @@ int ext4_alloc_da_blocks(struct inode *inode)
* not strictly speaking necessary (and for users of
* laptop_mode, not even desirable). However, to do otherwise
* would require replicating code paths in:
- *
+ *
* ext4_da_writepages() ->
* write_cache_pages() ---> (via passed in callback function)
* __mpage_da_writepage() -->
@@ -3064,7 +3064,7 @@ int ext4_alloc_da_blocks(struct inode *inode)
* write out the pages, but rather only collect contiguous
* logical block extents, call the multi-block allocator, and
* then update the buffer heads with the block allocations.
- *
+ *
* For now, though, we'll cheat by calling filemap_flush(),
* which will map the blocks, and start the I/O, but not
* actually wait for the I/O to complete.
@@ -3200,7 +3200,7 @@ static int bput_one(handle_t *handle, struct buffer_head *bh)
*
*/
static int __ext4_normal_writepage(struct page *page,
- struct writeback_control *wbc)
+ struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
@@ -3212,7 +3212,7 @@ static int __ext4_normal_writepage(struct page *page,
}
static int ext4_normal_writepage(struct page *page,
- struct writeback_control *wbc)
+ struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
loff_t size = i_size_read(inode);
@@ -3248,7 +3248,7 @@ static int ext4_normal_writepage(struct page *page,
}
static int __ext4_journalled_writepage(struct page *page,
- struct writeback_control *wbc)
+ struct writeback_control *wbc)
{
struct address_space *mapping = page->mapping;
struct inode *inode = mapping->host;
@@ -3298,7 +3298,7 @@ out:
}
static int ext4_journalled_writepage(struct page *page,
- struct writeback_control *wbc)
+ struct writeback_control *wbc)
{
struct inode *inode = page->mapping->host;
loff_t size = i_size_read(inode);
@@ -3401,8 +3401,8 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
* VFS code falls back into buffered path in that case so we are safe.
*/
static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
- const struct iovec *iov, loff_t offset,
- unsigned long nr_segs)
+ const struct iovec *iov, loff_t offset,
+ unsigned long nr_segs)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
@@ -3722,7 +3722,8 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
* (no partially truncated stuff there). */
static Indirect *ext4_find_shared(struct inode *inode, int depth,
- ext4_lblk_t offsets[4], Indirect chain[4], __le32 *top)
+ ext4_lblk_t offsets[4], Indirect chain[4],
+ __le32 *top)
{
Indirect *partial, *p;
int k, err;
@@ -3778,8 +3779,10 @@ no_top:
* than `count' because there can be holes in there.
*/
static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
- struct buffer_head *bh, ext4_fsblk_t block_to_free,
- unsigned long count, __le32 *first, __le32 *last)
+ struct buffer_head *bh,
+ ext4_fsblk_t block_to_free,
+ unsigned long count, __le32 *first,
+ __le32 *last)
{
__le32 *p;
if (try_to_extend_transaction(handle, inode)) {
@@ -3796,10 +3799,11 @@ static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
}
/*
- * Any buffers which are on the journal will be in memory. We find
- * them on the hash table so jbd2_journal_revoke() will run jbd2_journal_forget()
- * on them. We've already detached each block from the file, so
- * bforget() in jbd2_journal_forget() should be safe.
+ * Any buffers which are on the journal will be in memory. We
+ * find them on the hash table so jbd2_journal_revoke() will
+ * run jbd2_journal_forget() on them. We've already detached
+ * each block from the file, so bforget() in
+ * jbd2_journal_forget() should be safe.
*
* AKPM: turn on bforget in jbd2_journal_forget()!!!
*/
@@ -4171,7 +4175,7 @@ void ext4_truncate(struct inode *inode)
(__le32*)partial->bh->b_data+addr_per_block,
(chain+n-1) - partial);
BUFFER_TRACE(partial->bh, "call brelse");
- brelse (partial->bh);
+ brelse(partial->bh);
partial--;
}
do_indirects:
@@ -4412,8 +4416,9 @@ void ext4_get_inode_flags(struct ext4_inode_info *ei)
if (flags & S_DIRSYNC)
ei->i_flags |= EXT4_DIRSYNC_FL;
}
+
static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
- struct ext4_inode_info *ei)
+ struct ext4_inode_info *ei)
{
blkcnt_t i_blocks ;
struct inode *inode = &(ei->vfs_inode);
@@ -4528,7 +4533,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
EXT4_GOOD_OLD_INODE_SIZE +
ei->i_extra_isize;
if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC))
- ei->i_state |= EXT4_STATE_XATTR;
+ ei->i_state |= EXT4_STATE_XATTR;
}
} else
ei->i_extra_isize = 0;
@@ -4547,7 +4552,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
ret = 0;
if (ei->i_file_acl &&
- ((ei->i_file_acl <
+ ((ei->i_file_acl <
(le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block) +
EXT4_SB(sb)->s_gdb_count)) ||
(ei->i_file_acl >= ext4_blocks_count(EXT4_SB(sb)->s_es)))) {
@@ -4562,15 +4567,15 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
!ext4_inode_is_fast_symlink(inode)))
/* Validate extent which is part of inode */
ret = ext4_ext_check_inode(inode);
- } else if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
+ } else if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
(S_ISLNK(inode->i_mode) &&
!ext4_inode_is_fast_symlink(inode))) {
- /* Validate block references which are part of inode */
+ /* Validate block references which are part of inode */
ret = ext4_check_inode_blockref(inode);
}
if (ret) {
- brelse(bh);
- goto bad_inode;
+ brelse(bh);
+ goto bad_inode;
}
if (S_ISREG(inode->i_mode)) {
@@ -4601,7 +4606,7 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
} else {
brelse(bh);
ret = -EIO;
- ext4_error(inode->i_sb, __func__,
+ ext4_error(inode->i_sb, __func__,
"bogus i_mode (%o) for inode=%lu",
inode->i_mode, inode->i_ino);
goto bad_inode;
@@ -4754,8 +4759,9 @@ static int ext4_do_update_inode(handle_t *handle,
cpu_to_le32(new_encode_dev(inode->i_rdev));
raw_inode->i_block[2] = 0;
}
- } else for (block = 0; block < EXT4_N_BLOCKS; block++)
- raw_inode->i_block[block] = ei->i_data[block];
+ } else
+ for (block = 0; block < EXT4_N_BLOCKS; block++)
+ raw_inode->i_block[block] = ei->i_data[block];
raw_inode->i_disk_version = cpu_to_le32(inode->i_version);
if (ei->i_extra_isize) {
@@ -5109,7 +5115,7 @@ int ext4_chunk_trans_blocks(struct inode *inode, int nrblocks)
* Give this, we know that the caller already has write access to iloc->bh.
*/
int ext4_mark_iloc_dirty(handle_t *handle,
- struct inode *inode, struct ext4_iloc *iloc)
+ struct inode *inode, struct ext4_iloc *iloc)
{
int err = 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 19:29:19 +0000