diff options
Diffstat (limited to 'lib/ext2fs/unix_io.c')
| -rw-r--r-- | lib/ext2fs/unix_io.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/lib/ext2fs/unix_io.c b/lib/ext2fs/unix_io.c index eedbcdb3..d77e59db 100644 --- a/lib/ext2fs/unix_io.c +++ b/lib/ext2fs/unix_io.c @@ -4,7 +4,7 @@ * * Implements a one-block write-through cache. * - * Includes support for Windows NT support under Cygwin. + * Includes support for Windows NT support under Cygwin. * * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, * 2002 by Theodore Ts'o. @@ -83,7 +83,7 @@ static errcode_t unix_write_blk(io_channel channel, unsigned long block, static errcode_t unix_flush(io_channel channel); static errcode_t unix_write_byte(io_channel channel, unsigned long offset, int size, const void *data); -static errcode_t unix_set_option(io_channel channel, const char *option, +static errcode_t unix_set_option(io_channel channel, const char *option, const char *arg); static errcode_t unix_get_stats(io_channel channel, io_stats *stats) ; @@ -169,7 +169,7 @@ static errcode_t raw_read_blk(io_channel channel, goto error_out; } return 0; - + error_out: memset((char *) buf+actual, 0, size-actual); if (channel->read_error) @@ -258,14 +258,14 @@ static errcode_t raw_write_blk(io_channel channel, retval = errno ? errno : EXT2_ET_LLSEEK_FAILED; goto error_out; } - + actual = write(data->dev, buf, size); if (actual != size) { retval = EXT2_ET_SHORT_WRITE; goto error_out; } return 0; - + error_out: if (channel->write_error) retval = (channel->write_error)(channel, block, count, buf, @@ -285,7 +285,7 @@ static errcode_t alloc_cache(io_channel channel, errcode_t retval; struct unix_cache *cache; int i; - + data->access_time = 0; for (i=0, cache = data->cache; i < CACHE_SIZE; i++, cache++) { cache->block = 0; @@ -304,7 +304,7 @@ static void free_cache(struct unix_private_data *data) { struct unix_cache *cache; int i; - + data->access_time = 0; for (i=0, cache = data->cache; i < CACHE_SIZE; i++, cache++) { cache->block = 0; @@ -329,7 +329,7 @@ static struct unix_cache *find_cached_block(struct unix_private_data *data, { struct unix_cache *cache, *unused_cache, *oldest_cache; int i; - + unused_cache = oldest_cache = 0; for (i=0, cache = data->cache; i < CACHE_SIZE; i++, cache++) { if (!cache->in_use) { @@ -376,18 +376,18 @@ static errcode_t flush_cached_blocks(io_channel channel, struct unix_cache *cache; errcode_t retval, retval2; int i; - + retval2 = 0; for (i=0, cache = data->cache; i < CACHE_SIZE; i++, cache++) { if (!cache->in_use) continue; - + if (invalidate) cache->in_use = 0; - + if (!cache->dirty) continue; - + retval = raw_write_blk(channel, data, cache->block, 1, cache->buf); if (retval) @@ -465,7 +465,7 @@ static errcode_t unix_open(const char *name, int flags, io_channel *channel) * block devices are wrongly getting hit by the filesize * limit. This workaround isn't perfect, since it won't work * if glibc wasn't built against 2.2 header files. (Sigh.) - * + * */ if ((flags & IO_FLAG_RW) && (uname(&ut) == 0) && @@ -476,7 +476,7 @@ static errcode_t unix_open(const char *name, int flags, io_channel *channel) (fstat(data->dev, &st) == 0) && (S_ISBLK(st.st_mode))) { struct rlimit rlim; - + rlim.rlim_cur = rlim.rlim_max = (unsigned long) RLIM_INFINITY; setrlimit(RLIMIT_FSIZE, &rlim); getrlimit(RLIMIT_FSIZE, &rlim); @@ -541,7 +541,7 @@ static errcode_t unix_set_blksize(io_channel channel, int blksize) if ((retval = flush_cached_blocks(channel, data, 0))) return retval; #endif - + channel->block_size = blksize; free_cache(data); if ((retval = alloc_cache(channel, data))) @@ -602,7 +602,7 @@ static errcode_t unix_read_blk64(io_channel channel, unsigned long long block, #endif if ((retval = raw_read_blk(channel, data, block, i, cp))) return retval; - + /* Save the results in the cache */ for (j=0; j < i; j++) { count--; @@ -637,7 +637,7 @@ static errcode_t unix_write_blk64(io_channel channel, unsigned long long block, #ifdef NO_IO_CACHE return raw_write_blk(channel, data, block, count, buf); -#else +#else /* * If we're doing an odd-sized write or a very large write, * flush out the cache completely and then do a direct write. @@ -656,7 +656,7 @@ static errcode_t unix_write_blk64(io_channel channel, unsigned long long block, writethrough = channel->flags & CHANNEL_FLAGS_WRITETHROUGH; if (writethrough) retval = raw_write_blk(channel, data, block, count, buf); - + cp = buf; while (count > 0) { cache = find_cached_block(data, block, &reuse); @@ -701,7 +701,7 @@ static errcode_t unix_write_byte(io_channel channel, unsigned long offset, if (lseek(data->dev, offset + data->offset, SEEK_SET) < 0) return errno; - + actual = write(data->dev, buf, size); if (actual != size) return EXT2_ET_SHORT_WRITE; @@ -710,13 +710,13 @@ static errcode_t unix_write_byte(io_channel channel, unsigned long offset, } /* - * Flush data buffers to disk. + * Flush data buffers to disk. */ static errcode_t unix_flush(io_channel channel) { struct unix_private_data *data; errcode_t retval = 0; - + EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL); data = (struct unix_private_data *) channel->private_data; EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_UNIX_IO_CHANNEL); @@ -728,7 +728,7 @@ static errcode_t unix_flush(io_channel channel) return retval; } -static errcode_t unix_set_option(io_channel channel, const char *option, +static errcode_t unix_set_option(io_channel channel, const char *option, const char *arg) { struct unix_private_data *data; |