Add the fast commit module (fast_commit.c) to the build. This implements
ext4's fast commit journaling feature for improved performance.
Stubs added for:
- Wait bit operations (DEFINE_WAIT_BIT, bit_waitqueue, etc.)
- Dentry name snapshot operations
- Fast commit trace functions
- JBD2 fast commit functions (jbd2_fc_get_buf, jbd2_fc_begin_commit, etc.)
- Dentry allocation (d_alloc, d_drop)
- get_current_ioprio, wake_up_bit
- REQ_IDLE, REQ_PREFLUSH block I/O flags
Move name_snapshot struct definition after qstr is defined.
Remove fast commit stub functions now implemented in fast_commit.c.
Series-to: concept
Cover-letter:
ext4l: Add more ext4 files to the build (part E)
This adds more files to the build. Most are fairly small but some still
require a fair few additions to ext4_uboot.h and the stub.c files.
At this point, we are close to having all the files in place, so can
move on to actually making ext4 work.
END
Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
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