#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_trans_space.h"
#include "xfs_trans.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
if (rbmlock_flags & XFS_RBMLOCK_BITMAP)
xfs_iunlock(mp->m_rbmip, XFS_ILOCK_SHARED);
}
+
+static int
+xfs_rtfile_alloc_blocks(
+ struct xfs_inode *ip,
+ xfs_fileoff_t offset_fsb,
+ xfs_filblks_t count_fsb,
+ struct xfs_bmbt_irec *map)
+{
+ struct xfs_mount *mp = ip->i_mount;
+ struct xfs_trans *tp;
+ int nmap = 1;
+ int error;
+
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growrtalloc,
+ XFS_GROWFSRT_SPACE_RES(mp, count_fsb), 0, 0, &tp);
+ if (error)
+ return error;
+
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
+ XFS_IEXT_ADD_NOSPLIT_CNT);
+ if (error)
+ goto out_trans_cancel;
+
+ error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
+ XFS_BMAPI_METADATA, 0, map, &nmap);
+ if (error)
+ goto out_trans_cancel;
+
+ return xfs_trans_commit(tp);
+
+out_trans_cancel:
+ xfs_trans_cancel(tp);
+ return error;
+}
+
+/* Get a buffer for the block. */
+static int
+xfs_rtfile_initialize_block(
+ struct xfs_inode *ip,
+ xfs_fsblock_t fsbno,
+ enum xfs_blft buf_type)
+{
+ struct xfs_mount *mp = ip->i_mount;
+ struct xfs_trans *tp;
+ struct xfs_buf *bp;
+ int error;
+
+ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growrtzero, 0, 0, 0, &tp);
+ if (error)
+ return error;
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+ error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
+ XFS_FSB_TO_DADDR(mp, fsbno), mp->m_bsize, 0, &bp);
+ if (error) {
+ xfs_trans_cancel(tp);
+ return error;
+ }
+
+ xfs_trans_buf_set_type(tp, bp, buf_type);
+ bp->b_ops = xfs_rtblock_ops(mp, buf_type == XFS_BLFT_RTSUMMARY_BUF);
+ memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
+
+ if (xfs_has_rtgroups(mp)) {
+ struct xfs_rtbuf_blkinfo *hdr = bp->b_addr;
+
+ if (buf_type == XFS_BLFT_RTBITMAP_BUF)
+ hdr->rt_magic = cpu_to_be32(XFS_RTBITMAP_MAGIC);
+ else
+ hdr->rt_magic = cpu_to_be32(XFS_RTSUMMARY_MAGIC);
+ hdr->rt_owner = cpu_to_be64(ip->i_ino);
+ hdr->rt_blkno = cpu_to_be64(xfs_buf_daddr(bp));
+ uuid_copy(&hdr->rt_uuid, &mp->m_sb.sb_meta_uuid);
+ }
+
+ xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
+ return xfs_trans_commit(tp);
+}
+
+/*
+ * Allocate space to the bitmap or summary file, and zero it, for growfs.
+ */
+int
+xfs_rtfile_initialize_blocks(
+ struct xfs_inode *ip, /* inode (bitmap/summary) */
+ xfs_fileoff_t offset_fsb, /* offѕet to start from */
+ xfs_fileoff_t end_fsb) /* offѕet to allocate to */
+{
+ struct xfs_mount *mp = ip->i_mount;
+ enum xfs_blft buf_type;
+
+ if (ip == mp->m_rsumip)
+ buf_type = XFS_BLFT_RTSUMMARY_BUF;
+ else
+ buf_type = XFS_BLFT_RTBITMAP_BUF;
+
+ while (offset_fsb < end_fsb) {
+ struct xfs_bmbt_irec map;
+ xfs_filblks_t i;
+ int error;
+
+ error = xfs_rtfile_alloc_blocks(ip, offset_fsb,
+ end_fsb - offset_fsb, &map);
+ if (error)
+ return error;
+
+ /*
+ * Now we need to clear the allocated blocks.
+ *
+ * Do this one block per transaction, to keep it simple.
+ */
+ for (i = 0; i < map.br_blockcount; i++) {
+ error = xfs_rtfile_initialize_block(ip,
+ map.br_startblock + i, buf_type);
+ if (error)
+ return error;
+ }
+
+ offset_fsb = map.br_startoff + map.br_blockcount;
+ }
+
+ return 0;
+}
return -ENOSPC;
}
-/* Get a buffer for the block. */
-static int
-xfs_growfs_init_rtbuf(
- struct xfs_trans *tp,
- struct xfs_inode *ip,
- xfs_fsblock_t fsbno,
- enum xfs_blft buf_type)
-{
- struct xfs_mount *mp = tp->t_mountp;
- struct xfs_buf *bp;
- xfs_daddr_t d;
- int error;
-
- d = XFS_FSB_TO_DADDR(mp, fsbno);
- error = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, mp->m_bsize, 0,
- &bp);
- if (error)
- return error;
-
- xfs_trans_buf_set_type(tp, bp, buf_type);
- bp->b_ops = xfs_rtblock_ops(mp, buf_type == XFS_BLFT_RTSUMMARY_BUF);
- memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
-
- if (xfs_has_rtgroups(mp)) {
- struct xfs_rtbuf_blkinfo *hdr = bp->b_addr;
-
- if (buf_type == XFS_BLFT_RTBITMAP_BUF)
- hdr->rt_magic = cpu_to_be32(XFS_RTBITMAP_MAGIC);
- else
- hdr->rt_magic = cpu_to_be32(XFS_RTSUMMARY_MAGIC);
- hdr->rt_owner = cpu_to_be64(ip->i_ino);
- hdr->rt_blkno = cpu_to_be64(d);
- uuid_copy(&hdr->rt_uuid, &mp->m_sb.sb_meta_uuid);
- }
-
- xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
- return 0;
-}
-
-/*
- * Allocate space to the bitmap or summary file, and zero it, for growfs.
- */
-STATIC int
-xfs_growfs_rt_alloc(
- struct xfs_mount *mp, /* file system mount point */
- xfs_extlen_t oblocks, /* old count of blocks */
- xfs_extlen_t nblocks, /* new count of blocks */
- struct xfs_inode *ip) /* inode (bitmap/summary) */
-{
- xfs_fileoff_t bno; /* block number in file */
- int error; /* error return value */
- xfs_fsblock_t fsbno; /* filesystem block for bno */
- struct xfs_bmbt_irec map; /* block map output */
- int nmap; /* number of block maps */
- int resblks; /* space reservation */
- enum xfs_blft buf_type;
- struct xfs_trans *tp;
-
- if (ip == mp->m_rsumip)
- buf_type = XFS_BLFT_RTSUMMARY_BUF;
- else
- buf_type = XFS_BLFT_RTBITMAP_BUF;
-
- /*
- * Allocate space to the file, as necessary.
- */
- while (oblocks < nblocks) {
- resblks = XFS_GROWFSRT_SPACE_RES(mp, nblocks - oblocks);
- /*
- * Reserve space & log for one extent added to the file.
- */
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growrtalloc, resblks,
- 0, 0, &tp);
- if (error)
- return error;
- /*
- * Lock the inode.
- */
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-
- error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
- XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error)
- goto out_trans_cancel;
-
- /*
- * Allocate blocks to the bitmap file.
- */
- nmap = 1;
- error = xfs_bmapi_write(tp, ip, oblocks, nblocks - oblocks,
- XFS_BMAPI_METADATA, 0, &map, &nmap);
- if (error)
- goto out_trans_cancel;
- /*
- * Free any blocks freed up in the transaction, then commit.
- */
- error = xfs_trans_commit(tp);
- if (error)
- return error;
- /*
- * Now we need to clear the allocated blocks.
- * Do this one block per transaction, to keep it simple.
- */
- for (bno = map.br_startoff, fsbno = map.br_startblock;
- bno < map.br_startoff + map.br_blockcount;
- bno++, fsbno++) {
- /*
- * Reserve log for one block zeroing.
- */
- error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growrtzero,
- 0, 0, 0, &tp);
- if (error)
- return error;
- /*
- * Lock the bitmap inode.
- */
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-
- error = xfs_growfs_init_rtbuf(tp, ip, fsbno, buf_type);
- if (error)
- goto out_trans_cancel;
-
- /*
- * Commit the transaction.
- */
- error = xfs_trans_commit(tp);
- if (error)
- return error;
- }
- /*
- * Go on to the next extent, if any.
- */
- oblocks = map.br_startoff + map.br_blockcount;
- }
-
- return 0;
-
-out_trans_cancel:
- xfs_trans_cancel(tp);
- return error;
-}
-
static void
xfs_alloc_rsum_cache(
xfs_mount_t *mp, /* file system mount structure */
/*
* Allocate space to the bitmap and summary files, as necessary.
*/
- error = xfs_growfs_rt_alloc(mp, rbmblocks, nrbmblocks, mp->m_rbmip);
+ error = xfs_rtfile_initialize_blocks(mp->m_rbmip, rbmblocks,
+ nrbmblocks);
if (error)
return error;
- error = xfs_growfs_rt_alloc(mp, rsumblocks, nrsumblocks, mp->m_rsumip);
+ error = xfs_rtfile_initialize_blocks(mp->m_rsumip, rsumblocks,
+ nrsumblocks);
if (error)
return error;
projects / users / hch / xfs.git / commitdiff