linux-toradex.git/fs/ext4/migrate.c, branch v3.18-rc5

ext4: rename ext4_ext_find_extent() to ext4_find_extent()

2014-09-01T18:43:09+00:00

Make the function name less redundant.

Signed-off-by: Theodore Ts'o

ext4: allow a NULL argument to ext4_ext_drop_refs()

2014-09-01T18:39:09+00:00

Teach ext4_ext_drop_refs() to accept a NULL argument, much like
kfree().  This allows us to drop a lot of checks to make sure path is
non-NULL before calling ext4_ext_drop_refs().

Signed-off-by: Theodore Ts'o

ext4: drop EXT4_EX_NOFREE_ON_ERR from rest of extents handling code

2014-09-01T18:37:09+00:00

Drop EXT4_EX_NOFREE_ON_ERR from ext4_ext_create_new_leaf(),
ext4_split_extent(), ext4_convert_unwritten_extents_endio().

This requires fixing all of their callers to potentially
ext4_ext_find_extent() to free the struct ext4_ext_path object in case
of an error, and there are interlocking dependencies all the way up to
ext4_ext_map_blocks(), ext4_swap_extents(), and
ext4_ext_remove_space().

Once this is done, we can drop the EXT4_EX_NOFREE_ON_ERR flag since it
is no longer necessary.

Signed-off-by: Theodore Ts'o

ext4: add i_data_sem sanity check

2014-07-28T02:28:15+00:00

Each caller of ext4_ext_dirty must hold i_data_sem,
The only exception is migration code, let's make it convenient.

Signed-off-by: Dmitry Monakhov 
Signed-off-by: Theodore Ts'o 
Reviewed-by: Jan Kara

ext4: remove unnecessary double parentheses

2014-05-12T16:55:07+00:00

Signed-off-by: Lukas Czerner 
Signed-off-by: "Theodore Ts'o"

ext4: Fix misspellings using 'codespell' tool

2013-08-28T18:40:12+00:00

Signed-off-by: Anatol Pomozov 
Signed-off-by: "Theodore Ts'o"

ext4: cache all of an extent tree's leaf block upon reading

2013-08-17T01:23:41+00:00

When we read in an extent tree leaf block from disk, arrange to have
all of its entries cached.  In nearly all cases the in-memory
representation will be more compact than the on-disk representation in
the buffer cache, and it allows us to get the information without
having to traverse the extent tree for successive extents.

Signed-off-by: "Theodore Ts'o" 
Reviewed-by: Zheng Liu

ext4: do not convert to indirect with bigalloc enabled

2013-04-11T14:54:46+00:00

With bigalloc feature enabled we do not support indirect addressing at all
so we have to prevent extent addressing to indirect addressing
conversion in this case. The problem has been introduced with the commit
"ext4: support simple conversion of extent-mapped inodes to use i_blocks"

Signed-off-by: Lukas Czerner 
Signed-off-by: "Theodore Ts'o"

ext4: move ext4_ind_migrate() into migrate.c

2013-04-11T03:32:52+00:00

Move ext4_ind_migrate() into migrate.c file since it makes much more
sense and ext4_ext_migrate() is there as well.

Also fix tiny style problem - add spaces around "=" in "i=0".

Signed-off-by: Lukas Czerner 
Signed-off-by: "Theodore Ts'o"

ext4: fix the number of credits needed for ext4_ext_migrate()

2013-02-09T17:50:27+00:00

The migration ioctl creates a temporary inode.  Since this inode is
never linked to a directory, we don't need to reserve journal credits
required for modifying the directory.

Signed-off-by: "Theodore Ts'o" 
Reviewed-by: Jan Kara