diff options
Diffstat (limited to 'fs/xfs/xfs_rtalloc.c')
| -rw-r--r-- | fs/xfs/xfs_rtalloc.c | 217 |
1 files changed, 98 insertions, 119 deletions
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 12a191385310..6f9e63c9fc26 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -17,29 +17,27 @@ */ #include "xfs.h" #include "xfs_fs.h" -#include "xfs_types.h" +#include "xfs_format.h" #include "xfs_bit.h" #include "xfs_log.h" -#include "xfs_inum.h" #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dir2.h" #include "xfs_mount.h" #include "xfs_bmap_btree.h" #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_alloc.h" #include "xfs_bmap.h" +#include "xfs_bmap_util.h" #include "xfs_rtalloc.h" #include "xfs_fsops.h" #include "xfs_error.h" -#include "xfs_rw.h" #include "xfs_inode_item.h" #include "xfs_trans_space.h" -#include "xfs_utils.h" #include "xfs_trace.h" #include "xfs_buf.h" +#include "xfs_icache.h" /* @@ -76,7 +74,7 @@ xfs_growfs_rt_alloc( xfs_mount_t *mp, /* file system mount point */ xfs_extlen_t oblocks, /* old count of blocks */ xfs_extlen_t nblocks, /* new count of blocks */ - xfs_ino_t ino) /* inode number (bitmap/summary) */ + xfs_inode_t *ip) /* inode (bitmap/summary) */ { xfs_fileoff_t bno; /* block number in file */ xfs_buf_t *bp; /* temporary buffer for zeroing */ @@ -86,7 +84,6 @@ xfs_growfs_rt_alloc( xfs_fsblock_t firstblock; /* first block allocated in xaction */ xfs_bmap_free_t flist; /* list of freed blocks */ xfs_fsblock_t fsbno; /* filesystem block for bno */ - xfs_inode_t *ip; /* pointer to incore inode */ xfs_bmbt_irec_t map; /* block map output */ int nmap; /* number of block maps */ int resblks; /* space reservation */ @@ -103,27 +100,26 @@ xfs_growfs_rt_alloc( /* * Reserve space & log for one extent added to the file. */ - if ((error = xfs_trans_reserve(tp, resblks, - XFS_GROWRTALLOC_LOG_RES(mp), 0, - XFS_TRANS_PERM_LOG_RES, - XFS_DEFAULT_PERM_LOG_COUNT))) + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growdata, + resblks, 0); + if (error) goto error_cancel; cancelflags = XFS_TRANS_RELEASE_LOG_RES; /* * Lock the inode. */ - if ((error = xfs_trans_iget(mp, tp, ino, 0, - XFS_ILOCK_EXCL, &ip))) - goto error_cancel; + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); + xfs_bmap_init(&flist, &firstblock); /* * Allocate blocks to the bitmap file. */ nmap = 1; cancelflags |= XFS_TRANS_ABORT; - error = xfs_bmapi(tp, ip, oblocks, nblocks - oblocks, - XFS_BMAPI_WRITE | XFS_BMAPI_METADATA, &firstblock, - resblks, &map, &nmap, &flist); + error = xfs_bmapi_write(tp, ip, oblocks, nblocks - oblocks, + XFS_BMAPI_METADATA, &firstblock, + resblks, &map, &nmap, &flist); if (!error && nmap < 1) error = XFS_ERROR(ENOSPC); if (error) @@ -149,15 +145,15 @@ xfs_growfs_rt_alloc( /* * Reserve log for one block zeroing. */ - if ((error = xfs_trans_reserve(tp, 0, - XFS_GROWRTZERO_LOG_RES(mp), 0, 0, 0))) + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtzero, + 0, 0); + if (error) goto error_cancel; /* * Lock the bitmap inode. */ - if ((error = xfs_trans_iget(mp, tp, ino, 0, - XFS_ILOCK_EXCL, &ip))) - goto error_cancel; + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); /* * Get a buffer for the block. */ @@ -170,7 +166,7 @@ error_cancel: xfs_trans_cancel(tp, cancelflags); goto error; } - memset(XFS_BUF_PTR(bp), 0, mp->m_sb.sb_blocksize); + memset(bp->b_addr, 0, mp->m_sb.sb_blocksize); xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1); /* * Commit the transaction. @@ -185,6 +181,7 @@ error_cancel: oblocks = map.br_startoff + map.br_blockcount; } return 0; + error: return error; } @@ -738,8 +735,8 @@ xfs_rtallocate_range( { xfs_rtblock_t end; /* end of the allocated extent */ int error; /* error value */ - xfs_rtblock_t postblock; /* first block allocated > end */ - xfs_rtblock_t preblock; /* first block allocated < start */ + xfs_rtblock_t postblock = 0; /* first block allocated > end */ + xfs_rtblock_t preblock = 0; /* first block allocated < start */ end = start + len - 1; /* @@ -858,34 +855,24 @@ xfs_rtbuf_get( xfs_buf_t **bpp) /* output: buffer for the block */ { xfs_buf_t *bp; /* block buffer, result */ - xfs_daddr_t d; /* disk addr of block */ - int error; /* error value */ - xfs_fsblock_t fsb; /* fs block number for block */ xfs_inode_t *ip; /* bitmap or summary inode */ + xfs_bmbt_irec_t map; + int nmap = 1; + int error; /* error value */ ip = issum ? mp->m_rsumip : mp->m_rbmip; - /* - * Map from the file offset (block) and inode number to the - * file system block. - */ - error = xfs_bmapi_single(tp, ip, XFS_DATA_FORK, &fsb, block); - if (error) { + + error = xfs_bmapi_read(ip, block, 1, &map, &nmap, XFS_DATA_FORK); + if (error) return error; - } - ASSERT(fsb != NULLFSBLOCK); - /* - * Convert to disk address for buffer cache. - */ - d = XFS_FSB_TO_DADDR(mp, fsb); - /* - * Read the buffer. - */ - error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d, - mp->m_bsize, 0, &bp); - if (error) { + + ASSERT(map.br_startblock != NULLFSBLOCK); + error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, + XFS_FSB_TO_DADDR(mp, map.br_startblock), + mp->m_bsize, 0, &bp, NULL); + if (error) return error; - } - ASSERT(bp && !XFS_BUF_GETERROR(bp)); + ASSERT(!xfs_buf_geterror(bp)); *bpp = bp; return 0; } @@ -945,7 +932,7 @@ xfs_rtcheck_range( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; /* * Compute the starting word's address, and starting bit. */ @@ -996,7 +983,7 @@ xfs_rtcheck_range( if (error) { return error; } - b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + b = bufp = bp->b_addr; word = 0; } else { /* @@ -1042,7 +1029,7 @@ xfs_rtcheck_range( if (error) { return error; } - b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + b = bufp = bp->b_addr; word = 0; } else { /* @@ -1160,7 +1147,7 @@ xfs_rtfind_back( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; /* * Get the first word's index & point to it. */ @@ -1212,7 +1199,7 @@ xfs_rtfind_back( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; word = XFS_BLOCKWMASK(mp); b = &bufp[word]; } else { @@ -1258,7 +1245,7 @@ xfs_rtfind_back( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; word = XFS_BLOCKWMASK(mp); b = &bufp[word]; } else { @@ -1335,7 +1322,7 @@ xfs_rtfind_forw( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; /* * Get the first word's index & point to it. */ @@ -1386,7 +1373,7 @@ xfs_rtfind_forw( if (error) { return error; } - b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + b = bufp = bp->b_addr; word = 0; } else { /* @@ -1431,7 +1418,7 @@ xfs_rtfind_forw( if (error) { return error; } - b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + b = bufp = bp->b_addr; word = 0; } else { /* @@ -1651,7 +1638,7 @@ xfs_rtmodify_range( if (error) { return error; } - bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + bufp = bp->b_addr; /* * Compute the starting word's address, and starting bit. */ @@ -1696,7 +1683,7 @@ xfs_rtmodify_range( if (error) { return error; } - first = b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + first = b = bufp = bp->b_addr; word = 0; } else { /* @@ -1736,7 +1723,7 @@ xfs_rtmodify_range( if (error) { return error; } - first = b = bufp = (xfs_rtword_t *)XFS_BUF_PTR(bp); + first = b = bufp = bp->b_addr; word = 0; } else { /* @@ -1834,8 +1821,8 @@ xfs_rtmodify_summary( */ sp = XFS_SUMPTR(mp, bp, so); *sp += delta; - xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)XFS_BUF_PTR(bp)), - (uint)((char *)sp - (char *)XFS_BUF_PTR(bp) + sizeof(*sp) - 1)); + xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr), + (uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1)); return 0; } @@ -1854,7 +1841,6 @@ xfs_growfs_rt( xfs_rtblock_t bmbno; /* bitmap block number */ xfs_buf_t *bp; /* temporary buffer */ int error; /* error return value */ - xfs_inode_t *ip; /* bitmap inode, used as lock */ xfs_mount_t *nmp; /* new (fake) mount structure */ xfs_drfsbno_t nrblocks; /* new number of realtime blocks */ xfs_extlen_t nrbmblocks; /* new number of rt bitmap blocks */ @@ -1884,11 +1870,16 @@ xfs_growfs_rt( /* * Read in the last block of the device, make sure it exists. */ - bp = xfs_buf_read_uncached(mp, mp->m_rtdev_targp, + bp = xfs_buf_read_uncached(mp->m_rtdev_targp, XFS_FSB_TO_BB(mp, nrblocks - 1), - XFS_FSB_TO_B(mp, 1), 0); + XFS_FSB_TO_BB(mp, 1), 0, NULL); if (!bp) return EIO; + if (bp->b_error) { + error = bp->b_error; + xfs_buf_relse(bp); + return error; + } xfs_buf_relse(bp); /* @@ -1918,11 +1909,11 @@ xfs_growfs_rt( /* * Allocate space to the bitmap and summary files, as necessary. */ - if ((error = xfs_growfs_rt_alloc(mp, rbmblocks, nrbmblocks, - mp->m_sb.sb_rbmino))) + error = xfs_growfs_rt_alloc(mp, rbmblocks, nrbmblocks, mp->m_rbmip); + if (error) return error; - if ((error = xfs_growfs_rt_alloc(mp, rsumblocks, nrsumblocks, - mp->m_sb.sb_rsumino))) + error = xfs_growfs_rt_alloc(mp, rsumblocks, nrsumblocks, mp->m_rsumip); + if (error) return error; /* * Allocate a new (fake) mount/sb. @@ -1966,16 +1957,15 @@ xfs_growfs_rt( * Start a transaction, get the log reservation. */ tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_FREE); - if ((error = xfs_trans_reserve(tp, 0, - XFS_GROWRTFREE_LOG_RES(nmp), 0, 0, 0))) + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtfree, + 0, 0); + if (error) goto error_cancel; /* * Lock out other callers by grabbing the bitmap inode lock. */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, - XFS_ILOCK_EXCL, &ip))) - goto error_cancel; - ASSERT(ip == mp->m_rbmip); + xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, mp->m_rbmip, XFS_ILOCK_EXCL); /* * Update the bitmap inode's size. */ @@ -1986,10 +1976,8 @@ xfs_growfs_rt( /* * Get the summary inode into the transaction. */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rsumino, 0, - XFS_ILOCK_EXCL, &ip))) - goto error_cancel; - ASSERT(ip == mp->m_rsumip); + xfs_ilock(mp->m_rsumip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, mp->m_rsumip, XFS_ILOCK_EXCL); /* * Update the summary inode's size. */ @@ -2075,15 +2063,15 @@ xfs_rtallocate_extent( xfs_extlen_t prod, /* extent product factor */ xfs_rtblock_t *rtblock) /* out: start block allocated */ { + xfs_mount_t *mp = tp->t_mountp; int error; /* error value */ - xfs_inode_t *ip; /* inode for bitmap file */ - xfs_mount_t *mp; /* file system mount structure */ xfs_rtblock_t r; /* result allocated block */ xfs_fsblock_t sb; /* summary file block number */ xfs_buf_t *sumbp; /* summary file block buffer */ + ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL)); ASSERT(minlen > 0 && minlen <= maxlen); - mp = tp->t_mountp; + /* * If prod is set then figure out what to do to minlen and maxlen. */ @@ -2099,12 +2087,7 @@ xfs_rtallocate_extent( return 0; } } - /* - * Lock out other callers by grabbing the bitmap inode lock. - */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, - XFS_ILOCK_EXCL, &ip))) - return error; + sumbp = NULL; /* * Allocate by size, or near another block, or exactly at some block. @@ -2123,11 +2106,12 @@ xfs_rtallocate_extent( len, &sumbp, &sb, prod, &r); break; default: + error = EIO; ASSERT(0); } - if (error) { + if (error) return error; - } + /* * If it worked, update the superblock. */ @@ -2155,19 +2139,16 @@ xfs_rtfree_extent( xfs_extlen_t len) /* length of extent freed */ { int error; /* error value */ - xfs_inode_t *ip; /* bitmap file inode */ xfs_mount_t *mp; /* file system mount structure */ xfs_fsblock_t sb; /* summary file block number */ xfs_buf_t *sumbp; /* summary file block buffer */ mp = tp->t_mountp; - /* - * Synchronize by locking the bitmap inode. - */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, - XFS_ILOCK_EXCL, &ip))) - return error; -#if defined(__KERNEL__) && defined(DEBUG) + + ASSERT(mp->m_rbmip->i_itemp != NULL); + ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL)); + +#ifdef DEBUG /* * Check to see that this whole range is currently allocated. */ @@ -2199,10 +2180,10 @@ xfs_rtfree_extent( */ if (tp->t_frextents_delta + mp->m_sb.sb_frextents == mp->m_sb.sb_rextents) { - if (!(ip->i_d.di_flags & XFS_DIFLAG_NEWRTBM)) - ip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM; - *(__uint64_t *)&ip->i_d.di_atime = 0; - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM)) + mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM; + *(__uint64_t *)&mp->m_rbmip->i_d.di_atime = 0; + xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE); } return 0; } @@ -2222,8 +2203,8 @@ xfs_rtmount_init( if (sbp->sb_rblocks == 0) return 0; if (mp->m_rtdev_targp == NULL) { - cmn_err(CE_WARN, - "XFS: This filesystem has a realtime volume, use rtdev=device option"); + xfs_warn(mp, + "Filesystem has a realtime volume, use rtdev=device option"); return XFS_ERROR(ENODEV); } mp->m_rsumlevels = sbp->sb_rextslog + 1; @@ -2237,16 +2218,18 @@ xfs_rtmount_init( */ d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_rblocks); if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_rblocks) { - cmn_err(CE_WARN, "XFS: realtime mount -- %llu != %llu", + xfs_warn(mp, "realtime mount -- %llu != %llu", (unsigned long long) XFS_BB_TO_FSB(mp, d), (unsigned long long) mp->m_sb.sb_rblocks); return XFS_ERROR(EFBIG); } - bp = xfs_buf_read_uncached(mp, mp->m_rtdev_targp, + bp = xfs_buf_read_uncached(mp->m_rtdev_targp, d - XFS_FSB_TO_BB(mp, 1), - XFS_FSB_TO_B(mp, 1), 0); - if (!bp) { - cmn_err(CE_WARN, "XFS: realtime device size check failed"); + XFS_FSB_TO_BB(mp, 1), 0, NULL); + if (!bp || bp->b_error) { + xfs_warn(mp, "realtime device size check failed"); + if (bp) + xfs_buf_relse(bp); return EIO; } xfs_buf_relse(bp); @@ -2306,20 +2289,16 @@ xfs_rtpick_extent( xfs_rtblock_t *pick) /* result rt extent */ { xfs_rtblock_t b; /* result block */ - int error; /* error return value */ - xfs_inode_t *ip; /* bitmap incore inode */ int log2; /* log of sequence number */ __uint64_t resid; /* residual after log removed */ __uint64_t seq; /* sequence number of file creation */ __uint64_t *seqp; /* pointer to seqno in inode */ - if ((error = xfs_trans_iget(mp, tp, mp->m_sb.sb_rbmino, 0, - XFS_ILOCK_EXCL, &ip))) - return error; - ASSERT(ip == mp->m_rbmip); - seqp = (__uint64_t *)&ip->i_d.di_atime; - if (!(ip->i_d.di_flags & XFS_DIFLAG_NEWRTBM)) { - ip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM; + ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL)); + + seqp = (__uint64_t *)&mp->m_rbmip->i_d.di_atime; + if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM)) { + mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM; *seqp = 0; } seq = *seqp; @@ -2335,7 +2314,7 @@ xfs_rtpick_extent( b = mp->m_sb.sb_rextents - len; } *seqp = seq + 1; - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE); *pick = b; return 0; } |