Theodore Ts'o 9d0be50230 ext4: Calculate metadata requirements more accurately ... In the past, ext4_calc_metadata_amount(), and its sub-functions ext4_ext_calc_metadata_amount() and ext4_indirect_calc_metadata_amount() badly over-estimated the number of metadata blocks that might be required for delayed allocation blocks. This didn't matter as much when functions which managed the reserved metadata blocks were more aggressive about dropping reserved metadata blocks as delayed allocation blocks were written, but unfortunately they were too aggressive. This was fixed in commit 0637c6f, but as a result the over-estimation by ext4_calc_metadata_amount() would lead to reserving 2-3 times the number of pending delayed allocation blocks as potentially required metadata blocks. So if there are 1 megabytes of blocks which have been not yet been allocation, up to 3 megabytes of space would get reserved out of the user's quota and from the file system free space pool until all of the inode's data blocks have been allocated. This commit addresses this problem by much more accurately estimating the number of metadata blocks that will be required. It will still somewhat over-estimate the number of blocks needed, since it must make a worst case estimate not knowing which physical blocks will be needed, but it is much more accurate than before. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2010-01-01 02:41:30 -05:00
..
9p	9p: fix build breakage introduced by FS-Cache	2009-12-01 07:35:11 -08:00
adfs	adfs: remove redundant test on unsigned	2009-09-24 07:21:05 -07:00
affs
afs	afs: remove manual O_SYNC handling	2009-12-10 15:02:50 +01:00
autofs	trivial: remove unnecessary semicolons	2009-09-21 15:14:58 +02:00
autofs4	autofs4: always use lookup for lookup	2009-12-16 07:19:58 -08:00
befs	fs: Make unload_nls() NULL pointer safe	2009-09-24 07:47:42 -04:00
bfs
btrfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable	2009-12-17 16:01:03 -08:00
cachefiles	Untangling ima mess, part 2: deal with counters	2009-12-16 12:16:47 -05:00
cifs	Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux	2009-12-16 10:43:34 -08:00
coda	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
configfs	writeback: add name to backing_dev_info	2009-09-11 09:20:26 +02:00
cramfs
debugfs	debugfs: fix create mutex racy fops and private data	2009-12-11 11:24:53 -08:00
devpts	devpts_get_tty() should validate inode	2009-12-11 15:18:05 -08:00
dlm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm	2009-12-10 09:33:59 -08:00
ecryptfs	fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_all	2009-12-17 10:57:30 -05:00
efs
exofs	exofs: Multi-device mirror support	2009-12-10 09:59:23 +02:00
exportfs	nfs: new subdir Documentation/filesystems/nfs	2009-10-27 19:34:04 -04:00
ext2	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2009-12-16 12:04:02 -08:00
ext3	ext3: Replace lock/unlock_super() with an explicit lock for resizing	2009-12-23 13:44:12 +01:00
ext4	ext4: Calculate metadata requirements more accurately	2010-01-01 02:41:30 -05:00
fat	Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6	2009-12-16 10:29:26 -08:00
freevxfs
fscache	FS-Cache: Avoid maybe-used-uninitialised warning on variable	2009-12-16 07:20:13 -08:00
fuse	fuse: reject O_DIRECT flag also in fuse_create	2009-11-27 16:37:13 +01:00
gfs2	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
hfs	hfs: fix a potential buffer overflow	2009-12-15 08:53:10 -08:00
hfsplus	hfsplus: refuse to mount volumes larger than 2TB	2009-10-29 07:39:27 -07:00
hostfs
hpfs	hpfs: use bitmap_weight()	2009-12-16 07:20:06 -08:00
hppfs
hugetlbfs	Untangling ima mess, part 1: alloc_file()	2009-12-16 12:16:47 -05:00
isofs	Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux	2009-12-16 10:43:34 -08:00
jbd	jbd: jbd-debug and jbd2-debug should be writable	2009-12-23 13:44:13 +01:00
jbd2	jbd2: don't use __GFP_NOFAIL in journal_init_common()	2009-12-23 08:05:15 -05:00
jffs2	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2009-12-16 12:04:02 -08:00
jfs	jfs: Fix 32bit build warning	2009-12-22 12:27:35 -05:00
lockd	Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux	2009-12-16 10:43:34 -08:00
minix	V3 minixfs: add missing directory type checking	2009-09-23 07:39:57 -07:00
ncpfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
nfs	Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"	2009-12-17 12:51:05 -08:00
nfs_common
nfsd	nfsd: fix "insecure" export option	2009-12-20 20:19:51 -08:00
nilfs2	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
nls	Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6	2009-09-30 09:31:14 -07:00
notify	switch alloc_file() to passing struct path	2009-12-16 12:16:42 -05:00
ntfs	kill I_LOCK	2009-12-17 11:03:25 -05:00
ocfs2	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2009-12-24 12:59:11 -08:00
omfs	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
openpromfs
partitions	partitions: read whole sector with EFI GPT header	2009-11-23 09:29:58 +01:00
proc	Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-12-19 09:47:49 -08:00
qnx4	qnx4: use hweight8	2009-12-16 07:20:18 -08:00
quota	quota: Improve checking of quota file header	2009-12-23 13:44:13 +01:00
ramfs	nommu: ramfs: remove unused local var	2009-12-17 15:45:31 -08:00
reiserfs	reiserfs: truncate blocks not used by a write	2009-12-17 15:45:30 -08:00
romfs	ROMFS: fix length used with romfs_dev_strnlen() function	2009-10-11 11:33:56 -07:00
smbfs	fs: Make unload_nls() NULL pointer safe	2009-09-24 07:47:42 -04:00
squashfs	const: mark remaining super_operations const	2009-09-22 07:17:24 -07:00
sysfs	Driver core: bin_attribute parameters can often be const*	2009-12-23 11:23:43 -08:00
sysv
ubifs	kill I_LOCK	2009-12-17 11:03:25 -05:00
udf	udf: Avoid IO in udf_clear_inode	2009-12-14 21:40:04 +01:00
ufs	ufs: NFS support	2009-12-16 07:20:06 -08:00
xfs	kill I_LOCK	2009-12-17 11:03:25 -05:00
aio.c	aio: remove unused field	2009-12-16 07:20:13 -08:00
anon_inodes.c	Sanitize f_flags helpers	2009-12-22 12:27:34 -05:00
attr.c	truncate: new helpers	2009-09-24 08:41:47 -04:00
bad_inode.c
binfmt_aout.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
binfmt_elf_fdpic.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
binfmt_elf.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
binfmt_em86.c
binfmt_flat.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
bio-integrity.c
bio.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
block_dev.c	Merge branch 'for-linus' into for-2.6.33	2009-11-03 21:14:39 +01:00
buffer.c	Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block	2009-09-25 09:27:30 -07:00
char_dev.c	fs/char_dev.c: remove useless loop	2009-09-24 07:21:03 -07:00
compat_binfmt_elf.c
compat_ioctl.c	fs/compat_ioctl.c: fix build error when !BLOCK	2009-12-22 12:27:33 -05:00
compat.c	compat.c: Remove dependence on nfsd private headers	2009-12-14 18:12:10 -05:00
dcache.c	libfs: move EXPORT_SYMBOL for d_alloc_name	2009-12-16 12:16:48 -05:00
dcookies.c
direct-io.c	dio: fix use-after-free	2009-12-17 04:52:13 -05:00
drop_caches.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
eventfd.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
eventpoll.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
exec.c	mm: introduce coredump parameter structure	2009-12-17 15:45:31 -08:00
fcntl.c	fcntl: rename F_OWNER_GID to F_OWNER_PGRP	2009-11-17 17:40:33 -08:00
fifo.c
file_table.c	alloc_file(): simplify handling of mnt_clone_write() errors	2009-12-22 12:27:33 -05:00
file.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
filesystems.c
fs_struct.c
fs-writeback.c	fs-writeback: Add helper function to start writeback if idle	2009-12-23 07:57:07 -05:00
generic_acl.c	make generic_acl slightly more generic	2009-12-16 12:16:49 -05:00
inode.c	kill I_LOCK	2009-12-17 11:03:25 -05:00
internal.h	Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3)	2009-12-22 12:27:34 -05:00
ioctl.c	__generic_block_fiemap(): fix for files bigger than 4GB	2009-11-12 07:26:01 -08:00
ioprio.c
Kconfig	Revert "task_struct: make journal_info conditional"	2009-12-17 13:23:24 -08:00
Kconfig.binfmt
libfs.c	libfs: move EXPORT_SYMBOL for d_alloc_name	2009-12-16 12:16:48 -05:00
locks.c	const: make lock_manager_operations const	2009-09-22 07:17:25 -07:00
Makefile
mbcache.c
mpage.c
namei.c	Sanitize f_flags helpers	2009-12-22 12:27:34 -05:00
namespace.c	Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"	2009-12-17 12:51:05 -08:00
nfsctl.c	vfs: nfsctl.c un-used nfsd #includes	2009-12-14 18:12:11 -05:00
no-block.c
open.c	Sanitize f_flags helpers	2009-12-22 12:27:34 -05:00
pipe.c	fs: no games with DCACHE_UNHASHED	2009-12-17 10:51:40 -05:00
pnode.c
pnode.h
posix_acl.c
read_write.c	sendfile(): check f_op.splice_write() rather than f_op.sendpage()	2009-11-04 09:09:52 +01:00
read_write.h
readdir.c
select.c	headers: remove sched.h from poll.h	2009-10-04 15:05:10 -07:00
seq_file.c	vfs: seq_file: add helpers for data filling	2009-09-24 07:47:35 -04:00
signalfd.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
splice.c	sendfile(): check f_op.splice_write() rather than f_op.sendpage()	2009-11-04 09:09:52 +01:00
stack.c	VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size	2009-12-17 10:58:17 -05:00
stat.c	Add unlocked version of inode_add_bytes() function	2009-12-23 13:33:54 +01:00
super.c	vfs: get_sb_single() - do not pass options twice	2009-12-23 11:23:43 -08:00
sync.c	fold do_sync_file_range into sys_sync_file_range	2009-12-17 11:03:25 -05:00
timerfd.c	anonfd: Allow making anon files read-only	2009-12-22 12:27:34 -05:00
utimes.c
xattr_acl.c	VFS: Use GFP_NOFS in posix_acl_from_xattr()	2009-12-03 11:48:07 +00:00
xattr.c	sanitize xattr handler prototypes	2009-12-16 12:16:49 -05:00