openwrt/target/linux/generic/pending-5.15/532-jffs2_eofdetect.patch
Rui Salvaterra be381a7ac7 kernel: bump 5.15 to 5.15.33
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>
2022-04-09 19:31:46 +02:00

66 lines
1.9 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Subject: fs: jffs2: EOF marker
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
fs/jffs2/build.c | 10 ++++++++++
fs/jffs2/scan.c | 21 +++++++++++++++++++--
2 files changed, 29 insertions(+), 2 deletions(-)
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -117,6 +117,16 @@ static int jffs2_build_filesystem(struct
dbg_fsbuild("scanned flash completely\n");
jffs2_dbg_dump_block_lists_nolock(c);
+ if (c->flags & (1 << 7)) {
+ printk("%s(): unlocking the mtd device... ", __func__);
+ mtd_unlock(c->mtd, 0, c->mtd->size);
+ printk("done.\n");
+
+ printk("%s(): erasing all blocks after the end marker... ", __func__);
+ jffs2_erase_pending_blocks(c, -1);
+ printk("done.\n");
+ }
+
dbg_fsbuild("pass 1 starting\n");
c->flags |= JFFS2_SB_FLAG_BUILDING;
/* Now scan the directory tree, increasing nlink according to every dirent found. */
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -148,8 +148,14 @@ int jffs2_scan_medium(struct jffs2_sb_in
/* reset summary info for next eraseblock scan */
jffs2_sum_reset_collected(s);
- ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
- buf_size, s);
+ if (c->flags & (1 << 7)) {
+ if (mtd_block_isbad(c->mtd, jeb->offset))
+ ret = BLK_STATE_BADBLOCK;
+ else
+ ret = BLK_STATE_ALLFF;
+ } else
+ ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
+ buf_size, s);
if (ret < 0)
goto out;
@@ -567,6 +573,17 @@ full_scan:
return err;
}
+ if ((buf[0] == 0xde) &&
+ (buf[1] == 0xad) &&
+ (buf[2] == 0xc0) &&
+ (buf[3] == 0xde)) {
+ /* end of filesystem. erase everything after this point */
+ printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
+ c->flags |= (1 << 7);
+
+ return BLK_STATE_ALLFF;
+ }
+
/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
ofs = 0;
max_ofs = EMPTY_SCAN_SIZE(c->sector_size);