Re: [GIT PULL] Btrfs

From: David Rientjes
Date: Sat Feb 01 2014 - 19:15:45 EST

On Thu, 30 Jan 2014, Chris Mason wrote:

> Hi Linus
> Please pull my for-linus branch:
> git:// for-linus
> There are two conflicts right now, one with the ACL code (pick your
> version) and one with Kent's changes in the block layer pull. That one
> is pretty obvious too, just do both our cleanup and Kent's rework.
> This is a pretty big pull, and most of these changes have been floating
> in btrfs-next for a long time. Filipe's properties work is a cool
> building block for inheriting attributes like compression down on a
> per inode basis.
> Jeff Mahoney kicked in code to export filesystem info into sysfs.
> Otherwise, lots of performance improvements, cleanups and bug fixes.
> Looks like there are still a few other small pending incrementals, but I
> wanted to get the bulk of this in first.
> Filipe David Borba Manana (29) commits (+1856/-301):
> Btrfs: fix deadlock when iterating inode refs and running delayed inodes (+12/-7)
> Btrfs: fix send file hole detection leading to data corruption (+15/-0)
> Btrfs: remove field tree_mod_seq_elem from btrfs_fs_info struct (+0/-1)
> Btrfs: make send's file extent item search more efficient (+17/-10)
> Btrfs: fix infinite path build loops in incremental send (+518/-21)
> Btrfs: reduce btree node locking duration on item update (+14/-10)
> Btrfs: return immediately if tree log mod is not necessary (+1/-1)
> Btrfs: fix pass of transid with wrong endianness in send.c (+3/-3)
> Btrfs: fix btrfs_search_slot_for_read backwards iteration (+3/-1)
> Btrfs: fix send to not send non-aligned clone operations (+2/-1)
> Btrfs: faster and more efficient extent map insertion (+41/-31)
> Btrfs: fix extent boundary check in bio_readpage_error (+1/-1)
> Btrfs: faster file extent item search in clone ioctl (+14/-9)
> Btrfs: unlock inodes in correct order in clone ioctl (+11/-3)
> Btrfs: faster file extent item replace operations (+114/-46)
> Btrfs: avoid unnecessary ordered extent cache resets (+2/-1)
> Btrfs: fix very slow inode eviction and fs unmount (+84/-14)
> Btrfs: fix snprintf usage by send's gen_unique_name (+1/-1)
> Btrfs: fix ordered extent check in btrfs_punch_hole (+1/-1)
> Btrfs: fix btrfs boot when compiled as built-in (+73/-9)

This one, 14a958e678cd ("Btrfs: fix btrfs boot when compiled as
built-in"), breaks the build if CONFIG_LIBCRC32C=m:

fs/built-in.o: In function `btrfs_check_super_csum':
disk-io.c:(.text+0x1a1c8b): undefined reference to `crc32c'
fs/built-in.o: In function `write_dev_supers.isra.120':
disk-io.c:(.text+0x1a2054): undefined reference to `crc32c'
fs/built-in.o: In function `csum_tree_block.isra.122':
disk-io.c:(.text+0x1a22c4): undefined reference to `crc32c'
fs/built-in.o: In function `btrfs_csum_data':
(.text+0x1a2a46): undefined reference to `crc32c'
fs/built-in.o: In function `send_cmd':
send.c:(.text+0x20fe4c): undefined reference to `crc32c'
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