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btrfs: Make btrfs_delalloc_reserve_metadata take btrfs_inode

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Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2017-02-20 13:50:41 +02:00 committed by David Sterba
parent 703b391a03
commit 9f3db423f9
4 changed files with 39 additions and 38 deletions
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2
fs/btrfs/ctree.h
View File

@ -2703,7 +2703,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
u64 *qgroup_reserved, bool use_global_rsv);
void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *rsv);
int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes);
void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes);
int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len);
void btrfs_delalloc_release_space(struct inode *inode, u64 start, u64 len);

69
fs/btrfs/extent-tree.c
View File

@ -5920,10 +5920,10 @@ static u64 calc_csum_metadata_size(struct btrfs_inode *inode, u64 num_bytes,
return btrfs_calc_trans_metadata_size(fs_info, old_csums - num_csums);
}
int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
struct btrfs_root *root = inode->root;
struct btrfs_block_rsv *block_rsv = &fs_info->delalloc_block_rsv;
u64 to_reserve = 0;
u64 csum_bytes;
@ -5943,7 +5943,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
* If we have a transaction open (can happen if we call truncate_block
* from truncate), then we need FLUSH_LIMIT so we don't deadlock.
*/
if (btrfs_is_free_space_inode(BTRFS_I(inode))) {
if (btrfs_is_free_space_inode(inode)) {
flush = BTRFS_RESERVE_NO_FLUSH;
delalloc_lock = false;
} else if (current->journal_info) {
@ -5955,25 +5955,24 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
schedule_timeout(1);
if (delalloc_lock)
mutex_lock(&BTRFS_I(inode)->delalloc_mutex);
mutex_lock(&inode->delalloc_mutex);
num_bytes = ALIGN(num_bytes, fs_info->sectorsize);
spin_lock(&BTRFS_I(inode)->lock);
spin_lock(&inode->lock);
nr_extents = count_max_extents(num_bytes);
BTRFS_I(inode)->outstanding_extents += nr_extents;
inode->outstanding_extents += nr_extents;
nr_extents = 0;
if (BTRFS_I(inode)->outstanding_extents >
BTRFS_I(inode)->reserved_extents)
nr_extents += BTRFS_I(inode)->outstanding_extents -
BTRFS_I(inode)->reserved_extents;
if (inode->outstanding_extents > inode->reserved_extents)
nr_extents += inode->outstanding_extents -
inode->reserved_extents;
/* We always want to reserve a slot for updating the inode. */
to_reserve = btrfs_calc_trans_metadata_size(fs_info, nr_extents + 1);
to_reserve += calc_csum_metadata_size(BTRFS_I(inode), num_bytes, 1);
csum_bytes = BTRFS_I(inode)->csum_bytes;
spin_unlock(&BTRFS_I(inode)->lock);
to_reserve += calc_csum_metadata_size(inode, num_bytes, 1);
csum_bytes = inode->csum_bytes;
spin_unlock(&inode->lock);
if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
ret = btrfs_qgroup_reserve_meta(root,
@ -5989,38 +5988,38 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
goto out_fail;
}
spin_lock(&BTRFS_I(inode)->lock);
spin_lock(&inode->lock);
if (test_and_set_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
&BTRFS_I(inode)->runtime_flags)) {
&inode->runtime_flags)) {
to_reserve -= btrfs_calc_trans_metadata_size(fs_info, 1);
release_extra = true;
}
BTRFS_I(inode)->reserved_extents += nr_extents;
spin_unlock(&BTRFS_I(inode)->lock);
inode->reserved_extents += nr_extents;
spin_unlock(&inode->lock);
if (delalloc_lock)
mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);
mutex_unlock(&inode->delalloc_mutex);
if (to_reserve)
trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(BTRFS_I(inode)), to_reserve, 1);
btrfs_ino(inode), to_reserve, 1);
if (release_extra)
btrfs_block_rsv_release(fs_info, block_rsv,
btrfs_calc_trans_metadata_size(fs_info, 1));
return 0;
out_fail:
spin_lock(&BTRFS_I(inode)->lock);
dropped = drop_outstanding_extent(BTRFS_I(inode), num_bytes);
spin_lock(&inode->lock);
dropped = drop_outstanding_extent(inode, num_bytes);
/*
* If the inodes csum_bytes is the same as the original
* csum_bytes then we know we haven't raced with any free()ers
* so we can just reduce our inodes csum bytes and carry on.
*/
if (BTRFS_I(inode)->csum_bytes == csum_bytes) {
calc_csum_metadata_size(BTRFS_I(inode), num_bytes, 0);
if (inode->csum_bytes == csum_bytes) {
calc_csum_metadata_size(inode, num_bytes, 0);
} else {
u64 orig_csum_bytes = BTRFS_I(inode)->csum_bytes;
u64 orig_csum_bytes = inode->csum_bytes;
u64 bytes;
/*
@ -6031,9 +6030,9 @@ out_fail:
* number of bytes that were freed while we were trying our
* reservation.
*/
bytes = csum_bytes - BTRFS_I(inode)->csum_bytes;
BTRFS_I(inode)->csum_bytes = csum_bytes;
to_free = calc_csum_metadata_size(BTRFS_I(inode), bytes, 0);
bytes = csum_bytes - inode->csum_bytes;
inode->csum_bytes = csum_bytes;
to_free = calc_csum_metadata_size(inode, bytes, 0);
/*
@ -6041,9 +6040,9 @@ out_fail:
* been making this reservation and our ->csum_bytes were not
* artificially inflated.
*/
BTRFS_I(inode)->csum_bytes = csum_bytes - num_bytes;
inode->csum_bytes = csum_bytes - num_bytes;
bytes = csum_bytes - orig_csum_bytes;
bytes = calc_csum_metadata_size(BTRFS_I(inode), bytes, 0);
bytes = calc_csum_metadata_size(inode, bytes, 0);
/*
* Now reset ->csum_bytes to what it should be. If bytes is
@ -6053,23 +6052,23 @@ out_fail:
* need to do anything, the other free-ers did the correct
* thing.
*/
BTRFS_I(inode)->csum_bytes = orig_csum_bytes - num_bytes;
inode->csum_bytes = orig_csum_bytes - num_bytes;
if (bytes > to_free)
to_free = bytes - to_free;
else
to_free = 0;
}
spin_unlock(&BTRFS_I(inode)->lock);
spin_unlock(&inode->lock);
if (dropped)
to_free += btrfs_calc_trans_metadata_size(fs_info, dropped);
if (to_free) {
btrfs_block_rsv_release(fs_info, block_rsv, to_free);
trace_btrfs_space_reservation(fs_info, "delalloc",
btrfs_ino(BTRFS_I(inode)), to_free, 0);
btrfs_ino(inode), to_free, 0);
}
if (delalloc_lock)
mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);
mutex_unlock(&inode->delalloc_mutex);
return ret;
}
@ -6137,7 +6136,7 @@ int btrfs_delalloc_reserve_space(struct inode *inode, u64 start, u64 len)
ret = btrfs_check_data_free_space(inode, start, len);
if (ret < 0)
return ret;
ret = btrfs_delalloc_reserve_metadata(inode, len);
ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), len);
if (ret < 0)
btrfs_free_reserved_data_space(inode, start, len);
return ret;

3
fs/btrfs/file.c
View File

@ -1599,7 +1599,8 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
}
}
ret = btrfs_delalloc_reserve_metadata(inode, reserve_bytes);
ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode),
reserve_bytes);
if (ret) {
if (!only_release_metadata)
btrfs_free_reserved_data_space(inode, pos,

3
fs/btrfs/relocation.c
View File

@ -3203,7 +3203,8 @@ static int relocate_file_extent_cluster(struct inode *inode,
index = (cluster->start - offset) >> PAGE_SHIFT;
last_index = (cluster->end - offset) >> PAGE_SHIFT;
while (index <= last_index) {
ret = btrfs_delalloc_reserve_metadata(inode, PAGE_SIZE);
ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode),
PAGE_SIZE);
if (ret)
goto out;