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format: Ensure bcachefs module is loaded before checking version

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this prevents accidentally formatting with a version unsupported by the
running kernel

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-03-31 17:23:46 -04:00
parent 33483738c6
commit 3aa2a4c47c
1 changed files with 6 additions and 0 deletions
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6
c_src/libbcachefs.h
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@ -54,6 +54,12 @@ static inline unsigned bcachefs_kernel_version(void)
static inline struct format_opts format_opts_default() static inline struct format_opts format_opts_default()
{ {
/*
* Ensure bcachefs module is loaded so we know the supported on disk
* format version:
*/
system("modprobe bcachefs > /dev/null 2>&1");
return (struct format_opts) { return (struct format_opts) {
.version = bcachefs_kernel_version() ?: .version = bcachefs_kernel_version() ?:
bcachefs_metadata_version_current, bcachefs_metadata_version_current,