Sargun Dhillon f29efe2921 btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE ...

This patch introduces the quota override flag to btrfs_fs_info, and a
change to quota limit checking code to temporarily allow for quota to be
overridden for processes with CAP_SYS_RESOURCE.

It's useful for administrative programs, such as log rotation, that may
need to temporarily use more disk space in order to free up a greater
amount of overall disk space without yielding more disk space to the
rest of userland.

Eventually, we may want to add the idea of an operator-specific quota,
operator reserved space, or something else to allow for administrative
override, but this is perhaps the simplest solution.

Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Reviewed-by: David Sterba <dsterba@suse.com>
[ minor changelog edits ]
Signed-off-by: David Sterba <dsterba@suse.com>

2017-06-19 18:25:58 +02:00

..

tests

btrfs: remove unused qgroup members from btrfs_trans_handle

2017-04-18 14:07:25 +02:00

acl.c

posix_acl: Clear SGID bit when setting file permissions

2016-09-22 10:55:32 +02:00

async-thread.c

btrfs: fix crash when tracepoint arguments are freed by wq callbacks

2017-01-09 11:24:50 +01:00

async-thread.h

btrfs: limit async_work allocation and worker func duration

2016-12-13 11:01:30 -08:00

backref.c

btrfs: replace hardcoded value with SEQ_LAST macro

2017-04-18 14:07:25 +02:00

backref.h

btrfs: cleanup, remove inode_item_info helper

2015-01-14 19:23:47 +01:00

btrfs_inode.h

Btrfs: fix reported number of inode blocks

2017-04-26 16:27:26 +01:00

check-integrity.c

btrfs: kmap() can't fail

2017-06-19 18:25:57 +02:00

check-integrity.h

btrfs: take an fs_info directly when the root is not used otherwise

2016-12-06 16:06:59 +01:00

compression.c

btrfs: convert compressed_bio.pending_bios from atomic_t to refcount_t

2017-04-18 14:07:24 +02:00

compression.h

btrfs: derive maximum output size in the compression implementation

2017-02-28 14:26:36 +01:00

ctree.c

Merge branch 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2017-05-10 08:33:17 -07:00

ctree.h

btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE

2017-06-19 18:25:58 +02:00

dedupe.h

btrfs: expand cow_file_range() to support in-band dedup and subpage-blocksize

2016-07-26 13:52:25 +02:00

delayed-inode.c

btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

delayed-inode.h

btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

delayed-ref.c

btrfs: convert btrfs_delayed_ref_node.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

delayed-ref.h

btrfs: convert btrfs_delayed_ref_node.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

dev-replace.c

Btrfs: switch to div64_u64 if with a u64 divisor

2017-04-18 14:07:26 +02:00

dev-replace.h

btrfs: constify device path passed to relevant helpers

2017-02-28 14:26:07 +01:00

dir-item.c

btrfs: tree-log.c: Wrong printk information about namelen

2017-06-09 12:48:07 -07:00

disk-io.c

btrfs: Convert fs_info->free_chunk_space to atomic64_t

2017-06-19 18:25:58 +02:00

disk-io.h

btrfs: convert btrfs_root.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

export.c

btrfs: Make btrfs_ino take a struct btrfs_inode

2017-02-14 15:50:51 +01:00

export.h

…

extent_io.c

btrfs: fix incorrect error return ret being passed to mapping_set_error

2017-05-16 15:42:10 +02:00

extent_io.h

Merge branch 'for-chris-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.12

2017-04-27 14:13:09 -07:00

extent_map.c

btrfs: convert extent_map.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

extent_map.h

btrfs: convert extent_map.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

extent-tree.c

btrfs: Convert fs_info->free_chunk_space to atomic64_t

2017-06-19 18:25:58 +02:00

file-item.c

Merge branch 'for-chris-4.11-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.11

2017-02-28 14:35:09 -08:00

file.c

Merge branch 'for-chris-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/fdmanana/linux into for-linus-4.12

2017-04-27 14:13:09 -07:00

free-space-cache.c

btrfs: use clear_page where appropriate

2017-04-18 14:07:26 +02:00

free-space-cache.h

btrfs: free-space-cache, clean up unnecessary root arguments

2017-02-17 12:03:56 +01:00

free-space-tree.c

mm, vmalloc: use __GFP_HIGHMEM implicitly

2017-05-08 17:15:13 -07:00

free-space-tree.h

Btrfs: implement the free space B-tree

2015-12-17 12:16:47 -08:00

hash.c

crypto: Work around deallocated stack frame reference gcc bug on sparc.

2017-06-08 17:36:03 +08:00

hash.h

btrfs: advertise which crc32c implementation is being used at module load

2016-06-06 14:08:28 +02:00

inode-item.c

btrfs: take an fs_info directly when the root is not used otherwise

2016-12-06 16:06:59 +01:00

inode-map.c

btrfs: all btrfs_delalloc_release_metadata take btrfs_inode

2017-02-28 11:30:07 +01:00

inode-map.h

Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots

2016-01-15 19:25:02 +01:00

inode.c

Btrfs: remove an unused variable

2017-06-19 18:25:57 +02:00

ioctl.c

Btrfs: remove obsolete FIXMEs in qgroup ioctls

2017-06-19 18:25:58 +02:00

Kconfig

rcu: Make SRCU optional by using CONFIG_SRCU

2015-01-06 11:04:29 -08:00

locking.c

btrfs: cleanup, remove stray return statements

2016-01-07 14:30:52 +01:00

locking.h

btrfs: fix lockups from btrfs_clear_path_blocking

2014-11-19 10:34:35 -08:00

lzo.c

btrfs: derive maximum output size in the compression implementation

2017-02-28 14:26:36 +01:00

Makefile

Btrfs: add free space tree sanity tests

2015-12-17 12:16:47 -08:00

math.h

btrfs: cleanup 64bit/32bit divs, compile time constants

2015-03-03 17:23:57 +01:00

ordered-data.c

btrfs: convert btrfs_ordered_extent.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

ordered-data.h

btrfs: convert btrfs_ordered_extent.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

orphan.c

btrfs: kill the key type accessor helpers

2014-09-17 13:37:12 -07:00

print-tree.c

btrfs: take an fs_info directly when the root is not used otherwise

2016-12-06 16:06:59 +01:00

print-tree.h

btrfs: take an fs_info directly when the root is not used otherwise

2016-12-06 16:06:59 +01:00

props.c

btrfs: Make btrfs_ino take a struct btrfs_inode

2017-02-14 15:50:51 +01:00

props.h

Btrfs: add support for inode properties

2014-01-28 13:20:24 -08:00

qgroup.c

btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE

2017-06-19 18:25:58 +02:00

qgroup.h

btrfs: qgroup: Re-arrange tracepoint timing to co-operate with reserved space tracepoint

2017-04-18 14:07:26 +02:00

raid56.c

btrfs: Wait for in-flight bios before freeing target device for raid56

2017-04-18 14:07:26 +02:00

raid56.h

btrfs: take an fs_info directly when the root is not used otherwise

2016-12-06 16:06:59 +01:00

rcu-string.h

Btrfs: use rcu to protect device->name

2012-06-14 21:29:16 -04:00

reada.c

btrfs: remove local blocksize variable in reada_find_extent

2017-04-18 14:07:25 +02:00

relocation.c

btrfs: Make btrfs_orphan_add take btrfs_inode

2017-02-28 11:30:10 +01:00

root-tree.c

btrfs: Use ktime_get_real_ts for root ctime

2017-04-18 14:07:27 +02:00

scrub.c

btrfs: scrub: Fix RAID56 recovery race condition

2017-04-18 14:07:27 +02:00

send.c

Merge branch 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2017-05-10 08:33:17 -07:00

send.h

Btrfs: use linux/sizes.h to represent constants

2016-01-07 14:38:02 +01:00

struct-funcs.c

btrfs: fix string and comment grammatical issues and typos

2016-05-25 22:35:14 +02:00

super.c

Merge branch 'for-linus-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2017-05-10 08:33:17 -07:00

sysfs.c

btrfs: convert printk(KERN_* to use pr_* calls

2016-09-26 18:08:44 +02:00

sysfs.h

btrfs: sysfs: introduce helper for syncing bits with sysfs files

2016-01-21 18:50:40 +01:00

transaction.c

btrfs: qgroup: Fix qgroup corruption caused by inode_cache mount option

2017-04-18 14:07:26 +02:00

transaction.h

btrfs: remove unused qgroup members from btrfs_trans_handle

2017-04-18 14:07:25 +02:00

tree-defrag.c

Btrfs: fix locking bugs when defragging leaves

2015-12-18 02:51:32 +00:00

tree-log.c

btrfs: convert extent_map.refs from atomic_t to refcount_t

2017-04-18 14:07:23 +02:00

tree-log.h

btrfs: Make btrfs_del_inode_ref take btrfs_inode

2017-02-14 15:50:54 +01:00

ulist.c

btrfs: ulist: rename ulist_fini to ulist_release

2017-02-17 12:03:50 +01:00

ulist.h

btrfs: ulist: rename ulist_fini to ulist_release

2017-02-17 12:03:50 +01:00

uuid-tree.c

btrfs: return the actual error value from from btrfs_uuid_tree_iterate

2016-12-19 18:08:15 +01:00

volumes.c

btrfs: Convert fs_info->free_chunk_space to atomic64_t

2017-06-19 18:25:58 +02:00

volumes.h

btrfs: add framework to handle device flush error as a volume

2017-06-19 18:25:58 +02:00

xattr.c

btrfs: fix over-80 lines introduced by previous cleanups

2017-02-14 15:50:57 +01:00

xattr.h

btrfs: Switch to generic xattr handlers

2016-05-17 19:17:09 -04:00

zlib.c

btrfs: derive maximum output size in the compression implementation

2017-02-28 14:26:36 +01:00