On Tue, 21 Jan 2014 14:59:42 +0100, Andreas Rohner wrote:
> nilfs_reclaim_segment gathers all the necessary information to decide,
> how many reclaimable blocks there are in the segments that are to be
> cleaned.
>
> By enabling the passing of the threshold value
> minblocks, nilfs_reclaim_segment can check the actual value against the
> threshold.
>
> Signed-off-by: Andreas Rohner <[email protected]>
> ---
> include/nilfs_gc.h | 4 ++--
> lib/gc.c | 5 +++--
> sbin/cleanerd/cleanerd.c | 5 +++--
> sbin/nilfs-resize/nilfs-resize.c | 2 +-
> 4 files changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/include/nilfs_gc.h b/include/nilfs_gc.h
> index 7628ce1..f9fbde4 100644
> --- a/include/nilfs_gc.h
> +++ b/include/nilfs_gc.h
> @@ -15,8 +15,8 @@
> #include "nilfs.h"
>
> ssize_t nilfs_reclaim_segment(struct nilfs *nilfs,
> - __u64 *segnums, size_t nsegs,
> - __u64 protseq, nilfs_cno_t protcno);
> + __u64 *segnums, size_t nsegs, __u64 protseq,
> + nilfs_cno_t protcno, unsigned long minblocks);
This breaks compatibility of libnilfsgc library.
Please add new function with the extended arguments, the old function
can share implementation of the new function.
Ryusuke Konishi
> static inline int nilfs_suinfo_reclaimable(const struct nilfs_suinfo *si)
> diff --git a/lib/gc.c b/lib/gc.c
> index 1152299..0b0e2d6 100644
> --- a/lib/gc.c
> +++ b/lib/gc.c
> @@ -607,10 +607,11 @@ static int nilfs_toss_bdescs(struct nilfs_vector
> *bdescv)
> * @nsegs: size of the @segnums array
> * @protseq: start of sequence number of protected segments
> * @protcno: start checkpoint number of protected period
> + * @minblocks: minimal number of free blocks in a segment
> */
> ssize_t nilfs_reclaim_segment(struct nilfs *nilfs,
> - __u64 *segnums, size_t nsegs,
> - __u64 protseq, nilfs_cno_t protcno)
> + __u64 *segnums, size_t nsegs, __u64 protseq,
> + nilfs_cno_t protcno, unsigned long minblocks)
> {
> struct nilfs_vector *vdescv, *bdescv, *periodv, *vblocknrv;
> sigset_t sigset, oldset, waitset;
> diff --git a/sbin/cleanerd/cleanerd.c b/sbin/cleanerd/cleanerd.c
> index 575656b..6dd9d24 100644
> --- a/sbin/cleanerd/cleanerd.c
> +++ b/sbin/cleanerd/cleanerd.c
> @@ -1372,8 +1372,9 @@ static ssize_t nilfs_cleanerd_clean_segments(struct
> nilfs_cleanerd *cleanerd,
> }
> cleanerd->no_timeout = 0;
>
> - ret = nilfs_reclaim_segment(cleanerd->nilfs, segnums, nsegs,
> - protseq, protcno);
> + ret = nilfs_reclaim_segment(cleanerd->nilfs, segnums,
> + nsegs, protseq, protcno,
> + nilfs_cleanerd_min_free_blocks_threshold(cleanerd));
> if (ret > 0) {
> for (i = 0; i < ret; i++)
> syslog(LOG_DEBUG, "segment %llu cleaned",
> diff --git a/sbin/nilfs-resize/nilfs-resize.c
> b/sbin/nilfs-resize/nilfs-resize.c
> index c8b0868..2850268 100644
> --- a/sbin/nilfs-resize/nilfs-resize.c
> +++ b/sbin/nilfs-resize/nilfs-resize.c
> @@ -595,7 +595,7 @@ static ssize_t nilfs_resize_move_segments(struct nilfs
> *nilfs,
> return -1;
>
> ret = nilfs_reclaim_segment(nilfs, snp, nc,
> - sustat.ss_prot_seq, 0);
> + sustat.ss_prot_seq, 0, 0);
> if (ret < 0)
> return -1;
>
> --
> 1.8.5.3
>
> --
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