diff options
Diffstat (limited to 'fs/cramfs/inode.c')
| -rw-r--r-- | fs/cramfs/inode.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 355c522f3585..3a32ddf98095 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -100,6 +100,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb, break; case S_IFLNK: inode->i_op = &page_symlink_inode_operations; + inode_nohighmem(inode); inode->i_data.a_ops = &cramfs_aops; break; default: @@ -136,7 +137,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb, * page cache and dentry tree anyway.. * * This also acts as a way to guarantee contiguous areas of up to - * BLKS_PER_BUF*PAGE_CACHE_SIZE, so that the caller doesn't need to + * BLKS_PER_BUF*PAGE_SIZE, so that the caller doesn't need to * worry about end-of-buffer issues even when decompressing a full * page cache. */ @@ -151,7 +152,7 @@ static struct inode *get_cramfs_inode(struct super_block *sb, */ #define BLKS_PER_BUF_SHIFT (2) #define BLKS_PER_BUF (1 << BLKS_PER_BUF_SHIFT) -#define BUFFER_SIZE (BLKS_PER_BUF*PAGE_CACHE_SIZE) +#define BUFFER_SIZE (BLKS_PER_BUF*PAGE_SIZE) static unsigned char read_buffers[READ_BUFFERS][BUFFER_SIZE]; static unsigned buffer_blocknr[READ_BUFFERS]; @@ -172,8 +173,8 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i if (!len) return NULL; - blocknr = offset >> PAGE_CACHE_SHIFT; - offset &= PAGE_CACHE_SIZE - 1; + blocknr = offset >> PAGE_SHIFT; + offset &= PAGE_SIZE - 1; /* Check if an existing buffer already has the data.. */ for (i = 0; i < READ_BUFFERS; i++) { @@ -183,14 +184,14 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i continue; if (blocknr < buffer_blocknr[i]) continue; - blk_offset = (blocknr - buffer_blocknr[i]) << PAGE_CACHE_SHIFT; + blk_offset = (blocknr - buffer_blocknr[i]) << PAGE_SHIFT; blk_offset += offset; if (blk_offset + len > BUFFER_SIZE) continue; return read_buffers[i] + blk_offset; } - devsize = mapping->host->i_size >> PAGE_CACHE_SHIFT; + devsize = mapping->host->i_size >> PAGE_SHIFT; /* Ok, read in BLKS_PER_BUF pages completely first. */ for (i = 0; i < BLKS_PER_BUF; i++) { @@ -212,7 +213,7 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i wait_on_page_locked(page); if (!PageUptodate(page)) { /* asynchronous error */ - page_cache_release(page); + put_page(page); pages[i] = NULL; } } @@ -228,12 +229,12 @@ static void *cramfs_read(struct super_block *sb, unsigned int offset, unsigned i struct page *page = pages[i]; if (page) { - memcpy(data, kmap(page), PAGE_CACHE_SIZE); + memcpy(data, kmap(page), PAGE_SIZE); kunmap(page); - page_cache_release(page); + put_page(page); } else - memset(data, 0, PAGE_CACHE_SIZE); - data += PAGE_CACHE_SIZE; + memset(data, 0, PAGE_SIZE); + data += PAGE_SIZE; } return read_buffers[buffer] + offset; } @@ -352,7 +353,7 @@ static int cramfs_statfs(struct dentry *dentry, struct kstatfs *buf) u64 id = huge_encode_dev(sb->s_bdev->bd_dev); buf->f_type = CRAMFS_MAGIC; - buf->f_bsize = PAGE_CACHE_SIZE; + buf->f_bsize = PAGE_SIZE; buf->f_blocks = CRAMFS_SB(sb)->blocks; buf->f_bfree = 0; buf->f_bavail = 0; @@ -495,7 +496,7 @@ static int cramfs_readpage(struct file *file, struct page *page) int bytes_filled; void *pgdata; - maxblock = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + maxblock = (inode->i_size + PAGE_SIZE - 1) >> PAGE_SHIFT; bytes_filled = 0; pgdata = kmap(page); @@ -515,14 +516,14 @@ static int cramfs_readpage(struct file *file, struct page *page) if (compr_len == 0) ; /* hole */ - else if (unlikely(compr_len > (PAGE_CACHE_SIZE << 1))) { + else if (unlikely(compr_len > (PAGE_SIZE << 1))) { pr_err("bad compressed blocksize %u\n", compr_len); goto err; } else { mutex_lock(&read_mutex); bytes_filled = cramfs_uncompress_block(pgdata, - PAGE_CACHE_SIZE, + PAGE_SIZE, cramfs_read(sb, start_offset, compr_len), compr_len); mutex_unlock(&read_mutex); @@ -531,7 +532,7 @@ static int cramfs_readpage(struct file *file, struct page *page) } } - memset(pgdata + bytes_filled, 0, PAGE_CACHE_SIZE - bytes_filled); + memset(pgdata + bytes_filled, 0, PAGE_SIZE - bytes_filled); flush_dcache_page(page); kunmap(page); SetPageUptodate(page); |