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ext4: kunit tests for higher level extent manipulation functions

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Add more kunit tests to cover the high level caller
ext4_map_create_blocks(). We pass flags in a manner that covers
the below function:

1. ext4_ext_handle_unwritten_extents()
  1.1 - Split/Convert unwritten extent to written in endio convtext.
  1.2 - Split/Convert unwritten extent to written in non endio context.
  1.3 - Zeroout tests for the above 2 cases
2. convert_initialized_extent() - Convert written extent to unwritten
   during zero range

Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://patch.msgid.link/9d8ad32cb62f44999c0fe3545b44fc3113546c70.1769149131.git.ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ojaswin Mujoo
2026-01-23 11:55:33 +05:30
committed by Theodore Ts'o
parent cb1e0c1d1f
commit 4dff18488f
4 changed files with 365 additions and 9 deletions
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4
fs/ext4/ext4.h
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@@ -3804,6 +3804,10 @@ extern int ext4_convert_unwritten_io_end_vec(handle_t *handle,
ext4_io_end_t *io_end);
extern int ext4_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
extern int ext4_map_query_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
extern int ext4_map_create_blocks(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map, int flags);
extern int ext4_ext_calc_credits_for_single_extent(struct inode *inode,
int num,
struct ext4_ext_path *path);