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Diffstat (limited to 'fs/gfs2/bmap.c')
-rw-r--r--fs/gfs2/bmap.c77
1 files changed, 21 insertions, 56 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index bec76b1c2bb..11ffc56f1f8 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -75,9 +75,9 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
void *kaddr = kmap(page);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
- ip->i_di.di_size);
- memset(kaddr + ip->i_di.di_size, 0,
- PAGE_CACHE_SIZE - ip->i_di.di_size);
+ ip->i_disksize);
+ memset(kaddr + ip->i_disksize, 0,
+ PAGE_CACHE_SIZE - ip->i_disksize);
kunmap(page);
SetPageUptodate(page);
@@ -132,7 +132,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
if (error)
goto out;
- if (ip->i_di.di_size) {
+ if (ip->i_disksize) {
/* Get a free block, fill it with the stuffed data,
and write it out to disk */
@@ -159,7 +159,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
di = (struct gfs2_dinode *)dibh->b_data;
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
- if (ip->i_di.di_size) {
+ if (ip->i_disksize) {
*(__be64 *)(di + 1) = cpu_to_be64(block);
gfs2_add_inode_blocks(&ip->i_inode, 1);
di->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
@@ -926,7 +926,7 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
}
}
- ip->i_di.di_size = size;
+ ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@@ -1033,7 +1033,7 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
goto out;
if (gfs2_is_stuffed(ip)) {
- ip->i_di.di_size = size;
+ ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@@ -1045,9 +1045,9 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
error = gfs2_block_truncate_page(ip->i_inode.i_mapping);
if (!error) {
- ip->i_di.di_size = size;
+ ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
- ip->i_di.di_flags |= GFS2_DIF_TRUNC_IN_PROG;
+ ip->i_diskflags |= GFS2_DIF_TRUNC_IN_PROG;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
}
@@ -1114,13 +1114,13 @@ static int trunc_end(struct gfs2_inode *ip)
if (error)
goto out;
- if (!ip->i_di.di_size) {
+ if (!ip->i_disksize) {
ip->i_height = 0;
ip->i_goal = ip->i_no_addr;
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
}
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
- ip->i_di.di_flags &= ~GFS2_DIF_TRUNC_IN_PROG;
+ ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@@ -1205,9 +1205,9 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), S_ISREG(ip->i_inode.i_mode)))
return -EINVAL;
- if (size > ip->i_di.di_size)
+ if (size > ip->i_disksize)
error = do_grow(ip, size);
- else if (size < ip->i_di.di_size)
+ else if (size < ip->i_disksize)
error = do_shrink(ip, size);
else
/* update time stamps */
@@ -1219,7 +1219,7 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
int gfs2_truncatei_resume(struct gfs2_inode *ip)
{
int error;
- error = trunc_dealloc(ip, ip->i_di.di_size);
+ error = trunc_dealloc(ip, ip->i_disksize);
if (!error)
error = trunc_end(ip);
return error;
@@ -1231,35 +1231,6 @@ int gfs2_file_dealloc(struct gfs2_inode *ip)
}
/**
- * gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
- * @ip: the file
- * @len: the number of bytes to be written to the file
- * @data_blocks: returns the number of data blocks required
- * @ind_blocks: returns the number of indirect blocks required
- *
- */
-
-void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
- unsigned int *data_blocks, unsigned int *ind_blocks)
-{
- struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
- unsigned int tmp;
-
- if (gfs2_is_dir(ip)) {
- *data_blocks = DIV_ROUND_UP(len, sdp->sd_jbsize) + 2;
- *ind_blocks = 3 * (sdp->sd_max_jheight - 1);
- } else {
- *data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
- *ind_blocks = 3 * (sdp->sd_max_height - 1);
- }
-
- for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
- tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
- *ind_blocks += tmp;
- }
-}
-
-/**
* gfs2_write_alloc_required - figure out if a write will require an allocation
* @ip: the file being written to
* @offset: the offset to write to
@@ -1276,6 +1247,7 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
struct buffer_head bh;
unsigned int shift;
u64 lblock, lblock_stop, size;
+ u64 end_of_file;
*alloc_required = 0;
@@ -1291,19 +1263,12 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
*alloc_required = 1;
shift = sdp->sd_sb.sb_bsize_shift;
- if (gfs2_is_dir(ip)) {
- unsigned int bsize = sdp->sd_jbsize;
- lblock = offset;
- do_div(lblock, bsize);
- lblock_stop = offset + len + bsize - 1;
- do_div(lblock_stop, bsize);
- } else {
- u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;
- lblock = offset >> shift;
- lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
- if (lblock_stop > end_of_file)
- return 0;
- }
+ BUG_ON(gfs2_is_dir(ip));
+ end_of_file = (ip->i_disksize + sdp->sd_sb.sb_bsize - 1) >> shift;
+ lblock = offset >> shift;
+ lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
+ if (lblock_stop > end_of_file)
+ return 0;
size = (lblock_stop - lblock) << shift;
do {
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 02:40:56 +0000