diff options
author | Paul Mundt <lethal@linux-sh.org> | 2010-04-26 03:08:27 -0400 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2010-04-26 03:08:27 -0400 |
commit | e19553427c2e8fdb04fdd98e407164bb59a840ba (patch) | |
tree | 5332234b2dad07c03c27e4608afb16f297f41e61 /fs/logfs/journal.c | |
parent | 35f6cd4a06432034665a1499ca4b022437423aac (diff) | |
parent | 83515bc7df812555e20cda48614674e2f346f9f5 (diff) |
Merge branch 'sh/stable-updates'
Conflicts:
arch/sh/kernel/dwarf.c
drivers/dma/shdma.c
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'fs/logfs/journal.c')
-rw-r--r-- | fs/logfs/journal.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/fs/logfs/journal.c b/fs/logfs/journal.c index d57c7b07b60b..fb0a613f885b 100644 --- a/fs/logfs/journal.c +++ b/fs/logfs/journal.c | |||
@@ -6,6 +6,7 @@ | |||
6 | * Copyright (c) 2005-2008 Joern Engel <joern@logfs.org> | 6 | * Copyright (c) 2005-2008 Joern Engel <joern@logfs.org> |
7 | */ | 7 | */ |
8 | #include "logfs.h" | 8 | #include "logfs.h" |
9 | #include <linux/slab.h> | ||
9 | 10 | ||
10 | static void logfs_calc_free(struct super_block *sb) | 11 | static void logfs_calc_free(struct super_block *sb) |
11 | { | 12 | { |
@@ -388,7 +389,10 @@ static void journal_get_erase_count(struct logfs_area *area) | |||
388 | static int journal_erase_segment(struct logfs_area *area) | 389 | static int journal_erase_segment(struct logfs_area *area) |
389 | { | 390 | { |
390 | struct super_block *sb = area->a_sb; | 391 | struct super_block *sb = area->a_sb; |
391 | struct logfs_segment_header sh; | 392 | union { |
393 | struct logfs_segment_header sh; | ||
394 | unsigned char c[ALIGN(sizeof(struct logfs_segment_header), 16)]; | ||
395 | } u; | ||
392 | u64 ofs; | 396 | u64 ofs; |
393 | int err; | 397 | int err; |
394 | 398 | ||
@@ -396,20 +400,21 @@ static int journal_erase_segment(struct logfs_area *area) | |||
396 | if (err) | 400 | if (err) |
397 | return err; | 401 | return err; |
398 | 402 | ||
399 | sh.pad = 0; | 403 | memset(&u, 0, sizeof(u)); |
400 | sh.type = SEG_JOURNAL; | 404 | u.sh.pad = 0; |
401 | sh.level = 0; | 405 | u.sh.type = SEG_JOURNAL; |
402 | sh.segno = cpu_to_be32(area->a_segno); | 406 | u.sh.level = 0; |
403 | sh.ec = cpu_to_be32(area->a_erase_count); | 407 | u.sh.segno = cpu_to_be32(area->a_segno); |
404 | sh.gec = cpu_to_be64(logfs_super(sb)->s_gec); | 408 | u.sh.ec = cpu_to_be32(area->a_erase_count); |
405 | sh.crc = logfs_crc32(&sh, sizeof(sh), 4); | 409 | u.sh.gec = cpu_to_be64(logfs_super(sb)->s_gec); |
410 | u.sh.crc = logfs_crc32(&u.sh, sizeof(u.sh), 4); | ||
406 | 411 | ||
407 | /* This causes a bug in segment.c. Not yet. */ | 412 | /* This causes a bug in segment.c. Not yet. */ |
408 | //logfs_set_segment_erased(sb, area->a_segno, area->a_erase_count, 0); | 413 | //logfs_set_segment_erased(sb, area->a_segno, area->a_erase_count, 0); |
409 | 414 | ||
410 | ofs = dev_ofs(sb, area->a_segno, 0); | 415 | ofs = dev_ofs(sb, area->a_segno, 0); |
411 | area->a_used_bytes = ALIGN(sizeof(sh), 16); | 416 | area->a_used_bytes = sizeof(u); |
412 | logfs_buf_write(area, ofs, &sh, sizeof(sh)); | 417 | logfs_buf_write(area, ofs, &u, sizeof(u)); |
413 | return 0; | 418 | return 0; |
414 | } | 419 | } |
415 | 420 | ||
@@ -493,6 +498,8 @@ static void account_shadows(struct super_block *sb) | |||
493 | 498 | ||
494 | btree_grim_visitor64(&tree->new, (unsigned long)sb, account_shadow); | 499 | btree_grim_visitor64(&tree->new, (unsigned long)sb, account_shadow); |
495 | btree_grim_visitor64(&tree->old, (unsigned long)sb, account_shadow); | 500 | btree_grim_visitor64(&tree->old, (unsigned long)sb, account_shadow); |
501 | btree_grim_visitor32(&tree->segment_map, 0, NULL); | ||
502 | tree->no_shadowed_segments = 0; | ||
496 | 503 | ||
497 | if (li->li_block) { | 504 | if (li->li_block) { |
498 | /* | 505 | /* |
@@ -606,9 +613,9 @@ static size_t __logfs_write_je(struct super_block *sb, void *buf, u16 type, | |||
606 | if (len == 0) | 613 | if (len == 0) |
607 | return logfs_write_header(super, header, 0, type); | 614 | return logfs_write_header(super, header, 0, type); |
608 | 615 | ||
616 | BUG_ON(len > sb->s_blocksize); | ||
609 | compr_len = logfs_compress(buf, data, len, sb->s_blocksize); | 617 | compr_len = logfs_compress(buf, data, len, sb->s_blocksize); |
610 | if (compr_len < 0 || type == JE_ANCHOR) { | 618 | if (compr_len < 0 || type == JE_ANCHOR) { |
611 | BUG_ON(len > sb->s_blocksize); | ||
612 | memcpy(data, buf, len); | 619 | memcpy(data, buf, len); |
613 | compr_len = len; | 620 | compr_len = len; |
614 | compr = COMPR_NONE; | 621 | compr = COMPR_NONE; |
@@ -660,6 +667,7 @@ static int logfs_write_je_buf(struct super_block *sb, void *buf, u16 type, | |||
660 | if (ofs < 0) | 667 | if (ofs < 0) |
661 | return ofs; | 668 | return ofs; |
662 | logfs_buf_write(area, ofs, super->s_compressed_je, len); | 669 | logfs_buf_write(area, ofs, super->s_compressed_je, len); |
670 | BUG_ON(super->s_no_je >= MAX_JOURNAL_ENTRIES); | ||
663 | super->s_je_array[super->s_no_je++] = cpu_to_be64(ofs); | 671 | super->s_je_array[super->s_no_je++] = cpu_to_be64(ofs); |
664 | return 0; | 672 | return 0; |
665 | } | 673 | } |