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| author | Adrian Hunter <ext-adrian.hunter@nokia.com> | 2008-09-12 10:34:51 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-09-30 11:12:59 +0300 |
| commit | 5c0013c16bd2ee08ffef1a1365622556a57218f5 (patch) | |
| tree | 65148d84c2c9a7d5f30c6e4c53db743ba795a30b /fs/ubifs/file.c | |
| parent | 46773be497a05010a2873e9ad96d739fb352c1e4 (diff) | |
| download | linux-5c0013c16bd2ee08ffef1a1365622556a57218f5.tar.bz2 | |
UBIFS: fix bulk-read handling uptodate pages
Bulk-read skips uptodate pages but this was putting its
array index out and causing it to treat subsequent pages
as holes.
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Diffstat (limited to 'fs/ubifs/file.c')
| -rw-r--r-- | fs/ubifs/file.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c index 2f20a49ba34e..51cf511d44d9 100644 --- a/fs/ubifs/file.c +++ b/fs/ubifs/file.c @@ -595,7 +595,7 @@ out: static int populate_page(struct ubifs_info *c, struct page *page, struct bu_info *bu, int *n) { - int i = 0, nn = *n, offs = bu->zbranch[0].offs, hole = 1, read = 0; + int i = 0, nn = *n, offs = bu->zbranch[0].offs, hole = 0, read = 0; struct inode *inode = page->mapping->host; loff_t i_size = i_size_read(inode); unsigned int page_block; @@ -609,6 +609,7 @@ static int populate_page(struct ubifs_info *c, struct page *page, end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; if (!i_size || page->index > end_index) { + hole = 1; memset(addr, 0, PAGE_CACHE_SIZE); goto out_hole; } @@ -617,10 +618,10 @@ static int populate_page(struct ubifs_info *c, struct page *page, while (1) { int err, len, out_len, dlen; - if (nn >= bu->cnt || - key_block(c, &bu->zbranch[nn].key) != page_block) + if (nn >= bu->cnt) { + hole = 1; memset(addr, 0, UBIFS_BLOCK_SIZE); - else { + } else if (key_block(c, &bu->zbranch[nn].key) == page_block) { struct ubifs_data_node *dn; dn = bu->buf + (bu->zbranch[nn].offs - offs); @@ -643,8 +644,13 @@ static int populate_page(struct ubifs_info *c, struct page *page, memset(addr + len, 0, UBIFS_BLOCK_SIZE - len); nn += 1; - hole = 0; read = (i << UBIFS_BLOCK_SHIFT) + len; + } else if (key_block(c, &bu->zbranch[nn].key) < page_block) { + nn += 1; + continue; + } else { + hole = 1; + memset(addr, 0, UBIFS_BLOCK_SIZE); } if (++i >= UBIFS_BLOCKS_PER_PAGE) break; |