diff options
Diffstat (limited to 'fs/ntfs/super.c')
| -rw-r--r-- | fs/ntfs/super.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 80b04770e8e9..0de1db6cddbf 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -31,6 +31,7 @@ #include <linux/vfs.h> #include <linux/moduleparam.h> #include <linux/smp_lock.h> +#include <linux/bitmap.h> #include "sysctl.h" #include "logfile.h" @@ -39,6 +40,7 @@ #include "dir.h" #include "debug.h" #include "index.h" +#include "inode.h" #include "aops.h" #include "layout.h" #include "malloc.h" @@ -2457,7 +2459,6 @@ static void ntfs_put_super(struct super_block *sb) static s64 get_nr_free_clusters(ntfs_volume *vol) { s64 nr_free = vol->nr_clusters; - u32 *kaddr; struct address_space *mapping = vol->lcnbmp_ino->i_mapping; struct page *page; pgoff_t index, max_index; @@ -2476,7 +2477,8 @@ static s64 get_nr_free_clusters(ntfs_volume *vol) ntfs_debug("Reading $Bitmap, max_index = 0x%lx, max_size = 0x%lx.", max_index, PAGE_CACHE_SIZE / 4); for (index = 0; index < max_index; index++) { - unsigned int i; + unsigned long *kaddr; + /* * Read the page from page cache, getting it from backing store * if necessary, and increment the use count. @@ -2489,16 +2491,16 @@ static s64 get_nr_free_clusters(ntfs_volume *vol) nr_free -= PAGE_CACHE_SIZE * 8; continue; } - kaddr = (u32*)kmap_atomic(page, KM_USER0); + kaddr = kmap_atomic(page, KM_USER0); /* - * For each 4 bytes, subtract the number of set bits. If this + * Subtract the number of set bits. If this * is the last page and it is partial we don't really care as * it just means we do a little extra work but it won't affect * the result as all out of range bytes are set to zero by * ntfs_readpage(). */ - for (i = 0; i < PAGE_CACHE_SIZE / 4; i++) - nr_free -= (s64)hweight32(kaddr[i]); + nr_free -= bitmap_weight(kaddr, + PAGE_CACHE_SIZE * BITS_PER_BYTE); kunmap_atomic(kaddr, KM_USER0); page_cache_release(page); } @@ -2537,7 +2539,6 @@ static s64 get_nr_free_clusters(ntfs_volume *vol) static unsigned long __get_nr_free_mft_records(ntfs_volume *vol, s64 nr_free, const pgoff_t max_index) { - u32 *kaddr; struct address_space *mapping = vol->mftbmp_ino->i_mapping; struct page *page; pgoff_t index; @@ -2547,7 +2548,8 @@ static unsigned long __get_nr_free_mft_records(ntfs_volume *vol, ntfs_debug("Reading $MFT/$BITMAP, max_index = 0x%lx, max_size = " "0x%lx.", max_index, PAGE_CACHE_SIZE / 4); for (index = 0; index < max_index; index++) { - unsigned int i; + unsigned long *kaddr; + /* * Read the page from page cache, getting it from backing store * if necessary, and increment the use count. @@ -2560,16 +2562,16 @@ static unsigned long __get_nr_free_mft_records(ntfs_volume *vol, nr_free -= PAGE_CACHE_SIZE * 8; continue; } - kaddr = (u32*)kmap_atomic(page, KM_USER0); + kaddr = kmap_atomic(page, KM_USER0); /* - * For each 4 bytes, subtract the number of set bits. If this + * Subtract the number of set bits. If this * is the last page and it is partial we don't really care as * it just means we do a little extra work but it won't affect * the result as all out of range bytes are set to zero by * ntfs_readpage(). */ - for (i = 0; i < PAGE_CACHE_SIZE / 4; i++) - nr_free -= (s64)hweight32(kaddr[i]); + nr_free -= bitmap_weight(kaddr, + PAGE_CACHE_SIZE * BITS_PER_BYTE); kunmap_atomic(kaddr, KM_USER0); page_cache_release(page); } @@ -2662,6 +2664,13 @@ static int ntfs_statfs(struct dentry *dentry, struct kstatfs *sfs) return 0; } +#ifdef NTFS_RW +static int ntfs_write_inode(struct inode *vi, struct writeback_control *wbc) +{ + return __ntfs_write_inode(vi, wbc->sync_mode == WB_SYNC_ALL); +} +#endif + /** * The complete super operations. */ |