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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-20 19:52:35 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-20 19:52:35 +0300 |
commit | f49aa1de98363b6c5fba4637678d6b0ba3d18065 (patch) | |
tree | f02df2090c2d5baf0276ab6fa53c80db783c4765 /fs/btrfs/props.c | |
parent | 78e03651849fd3e8aa9ab3288bc1d3726c4c6129 (diff) | |
parent | 4e9845eff5a8027b5181d5bff56a02991fe46d48 (diff) | |
download | linux-f49aa1de98363b6c5fba4637678d6b0ba3d18065.tar.xz |
Merge tag 'for-5.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Notable highlights:
- fixes for some long-standing bugs in fsync that were quite hard to
catch but now finaly fixed
- some fixups to error handling paths that did not properly clean up
(locking, memory)
- fix to space reservation for inheriting properties"
* tag 'for-5.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: tree-checker: detect file extent items with overlapping ranges
Btrfs: fix race between ranged fsync and writeback of adjacent ranges
Btrfs: avoid fallback to transaction commit during fsync of files with holes
btrfs: extent-tree: Fix a bug that btrfs is unable to add pinned bytes
btrfs: sysfs: don't leak memory when failing add fsid
btrfs: sysfs: Fix error path kobject memory leak
Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path
btrfs: use the existing reserved items for our first prop for inheritance
btrfs: don't double unlock on error in btrfs_punch_hole
btrfs: Check the compression level before getting a workspace
Diffstat (limited to 'fs/btrfs/props.c')
-rw-r--r-- | fs/btrfs/props.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c index ca2716917e37..a9e2e66152ee 100644 --- a/fs/btrfs/props.c +++ b/fs/btrfs/props.c @@ -332,6 +332,7 @@ static int inherit_props(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info = root->fs_info; int ret; int i; + bool need_reserve = false; if (!test_bit(BTRFS_INODE_HAS_PROPS, &BTRFS_I(parent)->runtime_flags)) @@ -357,11 +358,20 @@ static int inherit_props(struct btrfs_trans_handle *trans, if (ret) continue; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); - ret = btrfs_block_rsv_add(root, trans->block_rsv, - num_bytes, BTRFS_RESERVE_NO_FLUSH); - if (ret) - return ret; + /* + * Currently callers should be reserving 1 item for properties, + * since we only have 1 property that we currently support. If + * we add more in the future we need to try and reserve more + * space for them. But we should also revisit how we do space + * reservations if we do add more properties in the future. + */ + if (need_reserve) { + num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + ret = btrfs_block_rsv_add(root, trans->block_rsv, + num_bytes, BTRFS_RESERVE_NO_FLUSH); + if (ret) + return ret; + } ret = btrfs_setxattr(trans, inode, h->xattr_name, value, strlen(value), 0); @@ -375,9 +385,13 @@ static int inherit_props(struct btrfs_trans_handle *trans, &BTRFS_I(inode)->runtime_flags); } - btrfs_block_rsv_release(fs_info, trans->block_rsv, num_bytes); - if (ret) - return ret; + if (need_reserve) { + btrfs_block_rsv_release(fs_info, trans->block_rsv, + num_bytes); + if (ret) + return ret; + } + need_reserve = true; } return 0; |