28 Jun, 2011
1 commit
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This patch moves functions from inode.c to indirect.c.
The moved functions are ext4_ind_* functions and their helpers.
Functions called from inode.c are declared extern.Signed-off-by: Amir Goldstein
Signed-off-by: "Theodore Ts'o"
25 May, 2011
1 commit
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Prevent an ext4 filesystem from being mounted multiple times.
A sequence number is stored on disk and is periodically updated (every 5
seconds by default) by a mounted filesystem.
At mount time, we now wait for s_mmp_update_interval seconds to make sure
that the MMP sequence does not change.
In case of failure, the nodename, bdevname and the time at which the MMP
block was last updated is displayed.Signed-off-by: Andreas Dilger
Signed-off-by: Johann Lombardi
Signed-off-by: "Theodore Ts'o"
28 Oct, 2010
1 commit
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Call the block I/O layer directly instad of going through the buffer
layer. This should give us much better performance and scalability,
as well as lowering our CPU utilization when doing buffered writeback.Signed-off-by: "Theodore Ts'o"
18 Jun, 2009
1 commit
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The EXT4_IOC_MOVE_EXT exchanges the blocks between orig_fd and donor_fd,
and then write the file data of orig_fd to donor_fd.
ext4_mext_move_extent() is the main fucntion of ext4 online defrag,
and this patch includes all functions related to ext4 online defrag.Signed-off-by: Akira Fujita
Signed-off-by: Takashi Sato
Signed-off-by: Kazuya Mio
Signed-off-by: "Theodore Ts'o"
18 May, 2009
1 commit
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To catch filesystem bugs or corruption which could lead to the
filesystem getting severly damaged, this patch adds a facility for
tracking all of the filesystem metadata blocks by contiguous regions
in a red-black tree. This allows quick searching of the tree to
locate extents which might overlap with filesystem metadata blocks.This facility is also used by the multi-block allocator to assure that
it is not allocating blocks out of the system zone, as well as by the
routines used when reading indirect blocks and extents information
from disk to make sure their contents are valid.Signed-off-by: "Theodore Ts'o"
11 Oct, 2008
1 commit
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The ext4 filesystem is getting stable enough that it's time to drop
the "dev" prefix. Also remove the requirement for the TEST_FILESYS
flag.Signed-off-by: "Theodore Ts'o"
29 Jan, 2008
2 commits
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Signed-off-by: Alex Tomas
Signed-off-by: Andreas Dilger
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Eric Sandeen
Signed-off-by: "Theodore Ts'o" -
The below patch add ioctl for migrating ext3 indirect block mapped inode
to ext4 extent mapped inode.Signed-off-by: Aneesh Kumar K.V
08 Dec, 2006
1 commit
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Saves nearly 4kbytes on x86.
Cc: Arnaldo Carvalho de Melo
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Oct, 2006
3 commits
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On disk extents format:
/*
* this is extent on-disk structure
* it's used at the bottom of the tree
*/
struct ext3_extent {
__le32 ee_block; /* first logical block extent covers */
__le16 ee_len; /* number of blocks covered by extent */
__le16 ee_start_hi; /* high 16 bits of physical block */
__le32 ee_start; /* low 32 bigs of physical block */
};Signed-off-by: Alex Tomas
Signed-off-by: Dave Kleikamp
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Mingming Cao originally did this work, and Shaggy reproduced it using some
scripts from her.Signed-off-by: Mingming Cao
Signed-off-by: Dave Kleikamp
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Start of the ext4 patch series. See Documentation/filesystems/ext4.txt for
details.This is a simple copy of the files in fs/ext3 to fs/ext4 and
/usr/incude/linux/ext3* to /usr/include/ex4*Signed-off-by: Dave Kleikamp
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
