diff options
| author | Christian Brauner <brauner@kernel.org> | 2026-05-29 11:43:41 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-06-03 10:09:50 +0300 |
| commit | ed56dc8bbf9dfad4a5b2f8d29344594b1cf8ca27 (patch) | |
| tree | 4cca6816a190a7625333086cac93b4dc550e3f90 | |
| parent | badb2cc8cf4aa37ecd8beda7aa5c003da93a9f74 (diff) | |
| download | linux-ed56dc8bbf9dfad4a5b2f8d29344594b1cf8ca27.tar.xz | |
ext4: convert mballoc KUnit test to sget_fc()
Same treatment as the extents KUnit test. The mballoc test uses sget()
as a thin "give me an initialized superblock" wrapper for a fake
file_system_type. Move it onto sget_fc() so sget() can go away.
Add a no-op mbt_init_fs_context() so fs_context_for_mount() has
something to call on the fake fs_type. mbt_set() now takes a struct
fs_context * (still a no-op). mbt_ext4_alloc_super_block() allocates
the fc, hands it to sget_fc() and drops the fc reference once the sb
is published.
No functional change.
Link: https://patch.msgid.link/20260529-work-sget-v2-2-57bbe08604e4@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
| -rw-r--r-- | fs/ext4/mballoc-test.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/ext4/mballoc-test.c b/fs/ext4/mballoc-test.c index 90ed505fa4b1..d90da44aadbd 100644 --- a/fs/ext4/mballoc-test.c +++ b/fs/ext4/mballoc-test.c @@ -5,6 +5,7 @@ #include <kunit/test.h> #include <kunit/static_stub.h> +#include <linux/fs_context.h> #include <linux/random.h> #include "ext4.h" @@ -63,8 +64,14 @@ static void mbt_kill_sb(struct super_block *sb) generic_shutdown_super(sb); } +static int mbt_init_fs_context(struct fs_context *fc) +{ + return 0; +} + static struct file_system_type mbt_fs_type = { .name = "mballoc test", + .init_fs_context = mbt_init_fs_context, .kill_sb = mbt_kill_sb, }; @@ -127,7 +134,7 @@ static void mbt_mb_release(struct super_block *sb) kfree(sb->s_bdev); } -static int mbt_set(struct super_block *sb, void *data) +static int mbt_set(struct super_block *sb, struct fs_context *fc) { return 0; } @@ -136,13 +143,19 @@ static struct super_block *mbt_ext4_alloc_super_block(void) { struct mbt_ext4_super_block *fsb; struct super_block *sb; + struct fs_context *fc; struct ext4_sb_info *sbi; fsb = kzalloc_obj(*fsb); if (fsb == NULL) return NULL; - sb = sget(&mbt_fs_type, NULL, mbt_set, 0, NULL); + fc = fs_context_for_mount(&mbt_fs_type, 0); + if (IS_ERR(fc)) + goto out; + + sb = sget_fc(fc, NULL, mbt_set); + put_fs_context(fc); if (IS_ERR(sb)) goto out; |