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UBIFS: use bit-fields when possible

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The "bulk_read" and "no_chk_data_crc" have only 2 values -
0 and 1. We already have bit-fields in corresponding data
structers, so make "bulk_read" and "no_chk_data_crc"
bit-fields as well.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2008-09-08 16:13:38 +03:00
parent ccb3eba724
commit 625bf371c1
1 changed files with 11 additions and 13 deletions
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24
fs/ubifs/ubifs.h
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@ -331,6 +331,7 @@ struct ubifs_gced_idx_leb {
* this inode
* @dirty: non-zero if the inode is dirty
* @xattr: non-zero if this is an extended attribute inode
* @bulk_read: non-zero if bulk-read should be used
* @ui_mutex: serializes inode write-back with the rest of VFS operations,
* serializes "clean <-> dirty" state changes, serializes bulk-read,
* protects @dirty, @ui_size, and @xattr_size
@ -343,7 +344,6 @@ struct ubifs_gced_idx_leb {
* @compr_type: default compression type used for this inode
* @last_page_read: page number of last page read (for bulk read)
* @read_in_a_row: number of consecutive pages read in a row (for bulk read)
* @bulk_read: indicates whether bulk-read should be used
* @data_len: length of the data attached to the inode
* @data: inode's data
*
@ -385,6 +385,7 @@ struct ubifs_inode {
unsigned int xattr_names;
unsigned int dirty:1;
unsigned int xattr:1;
unsigned int bulk_read:1;
struct mutex ui_mutex;
spinlock_t ui_lock;
loff_t synced_i_size;
@ -393,7 +394,6 @@ struct ubifs_inode {
int compr_type;
pgoff_t last_page_read;
pgoff_t read_in_a_row;
int bulk_read;
int data_len;
void *data;
};
@ -940,6 +940,7 @@ struct ubifs_mount_opts {
* @cmt_state: commit state
* @cs_lock: commit state lock
* @cmt_wq: wait queue to sleep on if the log is full and a commit is running
*
* @fast_unmount: do not run journal commit before un-mounting
* @big_lpt: flag that LPT is too big to write whole during commit
* @check_lpt_free: flag that indicates LPT GC may be needed
@ -947,6 +948,9 @@ struct ubifs_mount_opts {
* optimization)
* @nospace_rp: the same as @nospace, but additionally means that even reserved
* pool is full
* @no_chk_data_crc: do not check CRCs when reading data nodes (except during
* recovery)
* @bulk_read: enable bulk-reads
*
* @tnc_mutex: protects the Tree Node Cache (TNC), @zroot, @cnext, @enext, and
* @calc_idx_sz
@ -970,6 +974,7 @@ struct ubifs_mount_opts {
* @mst_node: master node
* @mst_offs: offset of valid master node
* @mst_mutex: protects the master node area, @mst_node, and @mst_offs
* @bulk_read_buf_size: buffer size for bulk-reads
*
* @log_lebs: number of logical eraseblocks in the log
* @log_bytes: log size in bytes
@ -1000,12 +1005,6 @@ struct ubifs_mount_opts {
* @old_leb_cnt: count of logical eraseblocks before re-size
* @ro_media: the underlying UBI volume is read-only
*
* @bulk_read: enable bulk-reads
* @bulk_read_buf_size: buffer size for bulk-reads
*
* @no_chk_data_crc: do not check CRCs when reading data nodes (except during
* recovery)
*
* @dirty_pg_cnt: number of dirty pages (not used)
* @dirty_zn_cnt: number of dirty znodes
* @clean_zn_cnt: number of clean znodes
@ -1188,11 +1187,14 @@ struct ubifs_info {
int cmt_state;
spinlock_t cs_lock;
wait_queue_head_t cmt_wq;
unsigned int fast_unmount:1;
unsigned int big_lpt:1;
unsigned int check_lpt_free:1;
unsigned int nospace:1;
unsigned int nospace_rp:1;
unsigned int no_chk_data_crc:1;
unsigned int bulk_read:1;
struct mutex tnc_mutex;
struct ubifs_zbranch zroot;
@ -1217,6 +1219,7 @@ struct ubifs_info {
struct ubifs_mst_node *mst_node;
int mst_offs;
struct mutex mst_mutex;
int bulk_read_buf_size;
int log_lebs;
long long log_bytes;
@ -1247,11 +1250,6 @@ struct ubifs_info {
int old_leb_cnt;
int ro_media;
int bulk_read;
int bulk_read_buf_size;
int no_chk_data_crc;
atomic_long_t dirty_pg_cnt;
atomic_long_t dirty_zn_cnt;
atomic_long_t clean_zn_cnt;