mirror of
https://github.com/kdave/btrfs-progs
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bfecd8bd6a
Introduce a new fsck mode: low memory mode. Old btrfsck is working efficiently but uses some memory for each extent item. This method will ensure extents are only iterated once at extent/chunk tree check process. But since it uses some memory for each extent item, for a large fs with several TB metadata, this can easily eat up memory and cause OOM. To handle such limitation and improve scalability, the new low-memory mode will not use any heap memory to record which extent is checked. Instead it will use extent backref to avoid most of uneeded checks on shared fs/subvolume tree blocks. And with the use forward and backward reference cross check, we can also ensure every tree block is at least checked once. Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| .. | ||
| asciidoc.conf | ||
| btrfs-balance.asciidoc | ||
| btrfs-check.asciidoc | ||
| btrfs-convert.asciidoc | ||
| btrfs-device.asciidoc | ||
| btrfs-filesystem.asciidoc | ||
| btrfs-find-root.asciidoc | ||
| btrfs-image.asciidoc | ||
| btrfs-inspect-internal.asciidoc | ||
| btrfs-man5.asciidoc | ||
| btrfs-map-logical.asciidoc | ||
| btrfs-property.asciidoc | ||
| btrfs-qgroup.asciidoc | ||
| btrfs-quota.asciidoc | ||
| btrfs-receive.asciidoc | ||
| btrfs-replace.asciidoc | ||
| btrfs-rescue.asciidoc | ||
| btrfs-restore.asciidoc | ||
| btrfs-scrub.asciidoc | ||
| btrfs-select-super.asciidoc | ||
| btrfs-send.asciidoc | ||
| btrfs-subvolume.asciidoc | ||
| btrfs.asciidoc | ||
| btrfstune.asciidoc | ||
| fsck.btrfs.asciidoc | ||
| Makefile.in | ||
| manpage-base.xsl | ||
| manpage-bold-literal.xsl | ||
| manpage-normal.xsl | ||
| mkfs.btrfs.asciidoc | ||