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diff -up util-linux-2.23.2/libblkid/src/blkidP.h.kzak util-linux-2.23.2/libblkid/src/blkidP.h
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--- util-linux-2.23.2/libblkid/src/blkidP.h.kzak 2013-07-30 10:39:26.205738229 +0200
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+++ util-linux-2.23.2/libblkid/src/blkidP.h 2014-01-23 10:51:10.109593273 +0100
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@@ -224,9 +224,6 @@ struct blkid_struct_probe
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/* private per-probing flags */
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#define BLKID_PROBE_FL_IGNORE_PT (1 << 1) /* ignore partition table */
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-#define BLKID_PROBE_FL_IGNORE_BACKUP (1 << 2) /* ignore backup superblocks or PT */
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-
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-extern int blkid_probe_ignore_backup(blkid_probe pr);
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extern blkid_probe blkid_clone_probe(blkid_probe parent);
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extern blkid_probe blkid_probe_get_wholedisk_probe(blkid_probe pr);
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diff -up util-linux-2.23.2/libblkid/src/probe.c.kzak util-linux-2.23.2/libblkid/src/probe.c
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--- util-linux-2.23.2/libblkid/src/probe.c.kzak 2013-07-30 10:39:26.208738259 +0200
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+++ util-linux-2.23.2/libblkid/src/probe.c 2014-01-23 10:51:10.109593273 +0100
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@@ -924,7 +924,8 @@ int blkid_do_probe(blkid_probe pr)
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*
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* This function erases the current signature detected by @pr. The @pr has to
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* be open in O_RDWR mode, BLKID_SUBLKS_MAGIC or/and BLKID_PARTS_MAGIC flags
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- * has to be enabled.
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+ * has to be enabled (if you want to errase also superblock with broken check
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+ * sums then use BLKID_SUBLKS_BADCSUM too).
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*
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* After successful signature removing the @pr prober will be moved one step
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* back and the next blkid_do_probe() call will again call previously called
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@@ -1125,8 +1126,6 @@ int blkid_do_safeprobe(blkid_probe pr)
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blkid_probe_start(pr);
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- pr->prob_flags |= BLKID_PROBE_FL_IGNORE_BACKUP;
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-
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for (i = 0; i < BLKID_NCHAINS; i++) {
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struct blkid_chain *chn;
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@@ -1764,8 +1763,3 @@ void blkid_probe_use_wiper(blkid_probe p
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blkid_probe_chain_reset_vals(pr, chn);
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}
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}
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-
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-int blkid_probe_ignore_backup(blkid_probe pr)
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-{
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- return pr && (pr->prob_flags & BLKID_PROBE_FL_IGNORE_BACKUP);
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-}
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diff -up util-linux-2.23.2/libblkid/src/superblocks/btrfs.c.kzak util-linux-2.23.2/libblkid/src/superblocks/btrfs.c
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--- util-linux-2.23.2/libblkid/src/superblocks/btrfs.c.kzak 2013-06-13 09:46:10.421650630 +0200
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+++ util-linux-2.23.2/libblkid/src/superblocks/btrfs.c 2014-01-23 10:51:10.109593273 +0100
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@@ -63,11 +63,6 @@ static int probe_btrfs(blkid_probe pr, c
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{
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struct btrfs_super_block *bfs;
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- if (mag->kboff > 64 && blkid_probe_ignore_backup(pr)) {
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- DBG(LOWPROBE, blkid_debug("btrfs: found backup superblock, ignore"));
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- return 1;
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- }
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-
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bfs = blkid_probe_get_sb(pr, mag, struct btrfs_super_block);
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if (!bfs)
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return -1;
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@@ -92,8 +87,6 @@ const struct blkid_idinfo btrfs_idinfo =
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.magics =
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{
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{ .magic = "_BHRfS_M", .len = 8, .sboff = 0x40, .kboff = 64 },
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- { .magic = "_BHRfS_M", .len = 8, .sboff = 0x40, .kboff = 64 * 1024 },
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- { .magic = "_BHRfS_M", .len = 8, .sboff = 0x40, .kboff = 256 * 1024 * 1024 },
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{ NULL }
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}
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};
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