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nilfs2: simplify nilfs_sufile_get_ncleansegs function

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Previously, this function took an status code to return possible error
codes.  The ("nilfs2: add local variable to cache the number of clean
segments") patch removed the possibility to return errors.

So, this simplifies the function definition to make it directly return
the number of clean segments.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi
2009-11-13 08:45:32 +09:00
parent aa474a2201
commit ef7d4757a5
3 changed files with 19 additions and 38 deletions
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23
fs/nilfs2/the_nilfs.c
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@@ -612,30 +612,23 @@ int nilfs_count_free_blocks(struct the_nilfs *nilfs, sector_t *nblocks)
{
struct inode *dat = nilfs_dat_inode(nilfs);
unsigned long ncleansegs;
int err;
down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
err = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile, &ncleansegs);
ncleansegs = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile);
up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
if (likely(!err))
*nblocks = (sector_t)ncleansegs * nilfs->ns_blocks_per_segment;
return err;
*nblocks = (sector_t)ncleansegs * nilfs->ns_blocks_per_segment;
return 0;
}
int nilfs_near_disk_full(struct the_nilfs *nilfs)
{
struct inode *sufile = nilfs->ns_sufile;
unsigned long ncleansegs, nincsegs;
int ret;
ret = nilfs_sufile_get_ncleansegs(sufile, &ncleansegs);
if (likely(!ret)) {
nincsegs = atomic_read(&nilfs->ns_ndirtyblks) /
nilfs->ns_blocks_per_segment + 1;
if (ncleansegs <= nilfs->ns_nrsvsegs + nincsegs)
ret++;
}
return ret;
ncleansegs = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile);
nincsegs = atomic_read(&nilfs->ns_ndirtyblks) /
nilfs->ns_blocks_per_segment + 1;
return ncleansegs <= nilfs->ns_nrsvsegs + nincsegs;
}
/**