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| author | Konstantin Belousov <kib@FreeBSD.org> | 2008-09-16 11:19:38 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2008-09-16 11:19:38 +0000 |
| commit | 52dfc8d7da79b9d7a1d3a3d2400dc17c957479e6 (patch) | |
| tree | 5722b46dbcf6b76aa1eb0334df5da361e5c92f37 /sys/kern/vfs_bio.c | |
| parent | bdb80947637137efd798dfcf47298bddb9d40413 (diff) | |
| download | src-52dfc8d7da79b9d7a1d3a3d2400dc17c957479e6.tar.gz src-52dfc8d7da79b9d7a1d3a3d2400dc17c957479e6.zip | |
Add the ffs structures introspection functions for ddb.
Show the b_dep value for the buffer in the show buffer command.
Add a comand to dump the dirty/clean buffer list for vnode.
Reviewed by: tegge
Tested and used by: pho
MFC after: 1 month
Notes
Notes:
svn path=/head/; revision=183072
Diffstat (limited to 'sys/kern/vfs_bio.c')
| -rw-r--r-- | sys/kern/vfs_bio.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 1570bd7edc95..239ee5a2988a 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -3903,9 +3903,10 @@ DB_SHOW_COMMAND(buffer, db_show_buffer) db_printf("b_flags = 0x%b\n", (u_int)bp->b_flags, PRINT_BUF_FLAGS); db_printf( "b_error = %d, b_bufsize = %ld, b_bcount = %ld, b_resid = %ld\n" - "b_bufobj = (%p), b_data = %p, b_blkno = %jd\n", + "b_bufobj = (%p), b_data = %p, b_blkno = %jd, b_dep = %p\n", bp->b_error, bp->b_bufsize, bp->b_bcount, bp->b_resid, - bp->b_bufobj, bp->b_data, (intmax_t)bp->b_blkno); + bp->b_bufobj, bp->b_data, (intmax_t)bp->b_blkno, + bp->b_dep.lh_first); if (bp->b_npages) { int i; db_printf("b_npages = %d, pages(OBJ, IDX, PA): ", bp->b_npages); @@ -3935,4 +3936,26 @@ DB_SHOW_COMMAND(lockedbufs, lockedbufs) } } } + +DB_SHOW_COMMAND(vnodebufs, db_show_vnodebufs) +{ + struct vnode *vp; + struct buf *bp; + + if (!have_addr) { + db_printf("usage: show vnodebufs <addr>\n"); + return; + } + vp = (struct vnode *)addr; + db_printf("Clean buffers:\n"); + TAILQ_FOREACH(bp, &vp->v_bufobj.bo_clean.bv_hd, b_bobufs) { + db_show_buffer((uintptr_t)bp, 1, 0, NULL); + db_printf("\n"); + } + db_printf("Dirty buffers:\n"); + TAILQ_FOREACH(bp, &vp->v_bufobj.bo_dirty.bv_hd, b_bobufs) { + db_show_buffer((uintptr_t)bp, 1, 0, NULL); + db_printf("\n"); + } +} #endif /* DDB */ |