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author | Josef Bacik <josef@toxicpanda.com> | 2020-07-21 10:22:12 -0400 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2020-10-07 12:06:50 +0200 |
commit | b49121393f583635b78abae4037fa1e772b2a042 (patch) | |
tree | 3344ddb3b65fa943f0535d663b0be050b2828180 /fs/btrfs | |
parent | 8e5600818022bd329a5846dd6b5242965644f150 (diff) | |
download | linux-b49121393f583635b78abae4037fa1e772b2a042.tar.gz linux-b49121393f583635b78abae4037fa1e772b2a042.tar.bz2 linux-b49121393f583635b78abae4037fa1e772b2a042.zip |
btrfs: change nr to u64 in btrfs_start_delalloc_roots
We have btrfs_wait_ordered_roots() which takes a u64 for nr, but
btrfs_start_delalloc_roots() that takes an int for nr, which makes using
them in conjunction, especially for something like (u64)-1, annoying and
inconsistent. Fix btrfs_start_delalloc_roots() to take a u64 for nr and
adjust start_delalloc_inodes() and it's callers appropriately.
This means we've adjusted start_delalloc_inodes() to take a pointer of
nr since we want to preserve the ability for start-delalloc_inodes() to
return an error, so simply make it do the nr adjusting as necessary.
Part of adjusting the callers to this means changing
btrfs_writeback_inodes_sb_nr() to take a u64 for items. This may be
confusing because it seems unrelated, but the caller of
btrfs_writeback_inodes_sb_nr() already passes in a u64, it's just the
function variable that needs to be changed.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Tested-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r-- | fs/btrfs/ctree.h | 2 | ||||
-rw-r--r-- | fs/btrfs/dev-replace.c | 2 | ||||
-rw-r--r-- | fs/btrfs/inode.c | 26 | ||||
-rw-r--r-- | fs/btrfs/ioctl.c | 2 | ||||
-rw-r--r-- | fs/btrfs/space-info.c | 2 |
5 files changed, 14 insertions, 20 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9a72896bed2e..e2ec4f067857 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2956,7 +2956,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, u32 min_type); int btrfs_start_delalloc_snapshot(struct btrfs_root *root); -int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int nr); +int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, u64 nr); int btrfs_set_extent_delalloc(struct btrfs_inode *inode, u64 start, u64 end, unsigned int extra_bits, struct extent_state **cached_state); diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index e4a1c6afe35d..61d800a149b0 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -661,7 +661,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, * flush all outstanding I/O and inode extent mappings before the * copy operation is declared as being finished */ - ret = btrfs_start_delalloc_roots(fs_info, -1); + ret = btrfs_start_delalloc_roots(fs_info, U64_MAX); if (ret) { mutex_unlock(&dev_replace->lock_finishing_cancel_unmount); return ret; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index df08ace5d914..48b8b5f09f47 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -9387,7 +9387,7 @@ static struct btrfs_delalloc_work *btrfs_alloc_delalloc_work(struct inode *inode * some fairly slow code that needs optimization. This walks the list * of all the inodes with pending delalloc and forces them to disk. */ -static int start_delalloc_inodes(struct btrfs_root *root, int nr, bool snapshot) +static int start_delalloc_inodes(struct btrfs_root *root, u64 *nr, bool snapshot) { struct btrfs_inode *binode; struct inode *inode; @@ -9427,9 +9427,11 @@ static int start_delalloc_inodes(struct btrfs_root *root, int nr, bool snapshot) list_add_tail(&work->list, &works); btrfs_queue_work(root->fs_info->flush_workers, &work->work); - ret++; - if (nr != -1 && ret >= nr) - goto out; + if (*nr != U64_MAX) { + (*nr)--; + if (*nr == 0) + goto out; + } cond_resched(); spin_lock(&root->delalloc_lock); } @@ -9454,18 +9456,15 @@ out: int btrfs_start_delalloc_snapshot(struct btrfs_root *root) { struct btrfs_fs_info *fs_info = root->fs_info; - int ret; + u64 nr = U64_MAX; if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) return -EROFS; - ret = start_delalloc_inodes(root, -1, true); - if (ret > 0) - ret = 0; - return ret; + return start_delalloc_inodes(root, &nr, true); } -int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int nr) +int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, u64 nr) { struct btrfs_root *root; struct list_head splice; @@ -9488,15 +9487,10 @@ int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int nr) &fs_info->delalloc_roots); spin_unlock(&fs_info->delalloc_root_lock); - ret = start_delalloc_inodes(root, nr, false); + ret = start_delalloc_inodes(root, &nr, false); btrfs_put_root(root); if (ret < 0) goto out; - - if (nr != -1) { - nr -= ret; - WARN_ON(nr < 0); - } spin_lock(&fs_info->delalloc_root_lock); } spin_unlock(&fs_info->delalloc_root_lock); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 2d9109d9e98f..a5355a16eabb 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -4897,7 +4897,7 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_SYNC: { int ret; - ret = btrfs_start_delalloc_roots(fs_info, -1); + ret = btrfs_start_delalloc_roots(fs_info, U64_MAX); if (ret) return ret; ret = btrfs_sync_fs(inode->i_sb, 1); diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index 475968ccbd1d..266ff14e4c8c 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -477,7 +477,7 @@ again: } static void btrfs_writeback_inodes_sb_nr(struct btrfs_fs_info *fs_info, - unsigned long nr_pages, int nr_items) + unsigned long nr_pages, u64 nr_items) { struct super_block *sb = fs_info->sb; |