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be381a7ac7
Deleted (upstreamed): generic/backport-5.15/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch [1] generic/backport-5.15/730-v5.16-hv-utils-add-PTP_1588_CLOCK-to-Kconfig-to-fix-build.patch [2] generic/pending-5.15/850-0014-PCI-aardvark-Fix-reading-PCI_EXP_RTSTA_PME-bit-on-em.patch [3] generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch [4] Manually rebased: generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch ramips/patches-5.15/710-at803x.patch [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d29cda15cab086d82d692de016f7249545d4b6b4 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d5aad7d63b1b5c1f3c4b69e12c05e7c7d196fae8 [3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=ed750e22e44366e264bcdf7b1cf0713f08f7980a [4] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=0fe94b84c43cfea867e1721606185e8686d7d32f Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> [Refresh patches again] [Remove generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
66 lines
1.9 KiB
Diff
66 lines
1.9 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Subject: fs: jffs2: EOF marker
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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fs/jffs2/build.c | 10 ++++++++++
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fs/jffs2/scan.c | 21 +++++++++++++++++++--
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2 files changed, 29 insertions(+), 2 deletions(-)
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--- a/fs/jffs2/build.c
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+++ b/fs/jffs2/build.c
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@@ -117,6 +117,16 @@ static int jffs2_build_filesystem(struct
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dbg_fsbuild("scanned flash completely\n");
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jffs2_dbg_dump_block_lists_nolock(c);
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+ if (c->flags & (1 << 7)) {
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+ printk("%s(): unlocking the mtd device... ", __func__);
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+ mtd_unlock(c->mtd, 0, c->mtd->size);
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+ printk("done.\n");
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+
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+ printk("%s(): erasing all blocks after the end marker... ", __func__);
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+ jffs2_erase_pending_blocks(c, -1);
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+ printk("done.\n");
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+ }
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+
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dbg_fsbuild("pass 1 starting\n");
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c->flags |= JFFS2_SB_FLAG_BUILDING;
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/* Now scan the directory tree, increasing nlink according to every dirent found. */
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--- a/fs/jffs2/scan.c
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+++ b/fs/jffs2/scan.c
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@@ -148,8 +148,14 @@ int jffs2_scan_medium(struct jffs2_sb_in
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/* reset summary info for next eraseblock scan */
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jffs2_sum_reset_collected(s);
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- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
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- buf_size, s);
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+ if (c->flags & (1 << 7)) {
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+ if (mtd_block_isbad(c->mtd, jeb->offset))
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+ ret = BLK_STATE_BADBLOCK;
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+ else
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+ ret = BLK_STATE_ALLFF;
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+ } else
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+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
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+ buf_size, s);
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if (ret < 0)
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goto out;
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@@ -567,6 +573,17 @@ full_scan:
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return err;
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}
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+ if ((buf[0] == 0xde) &&
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+ (buf[1] == 0xad) &&
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+ (buf[2] == 0xc0) &&
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+ (buf[3] == 0xde)) {
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+ /* end of filesystem. erase everything after this point */
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+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
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+ c->flags |= (1 << 7);
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+
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+ return BLK_STATE_ALLFF;
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+ }
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+
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/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
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ofs = 0;
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max_ofs = EMPTY_SCAN_SIZE(c->sector_size);
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