diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 19:12:12 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 19:12:12 -0800 |
commit | 0b61a2ba5dfd1620731e717d686e6ade657fd975 (patch) | |
tree | dea84efd43934a7d6139048f87c4ba86d68d4b6d /fs/xfs/linux-2.6/xfs_lrw.c | |
parent | a13ff0bb3feda8b1fcffc69951320277ed7c4101 (diff) | |
parent | de2eeea609b55e8c3994133a565b39edeaaaaf69 (diff) |
Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6: (62 commits)
[XFS] add __init/__exit mark to specific init/cleanup functions
[XFS] Fix oops in xfs_file_readdir()
[XFS] kill xfs_root
[XFS] keep i_nlink updated and use proper accessors
[XFS] stop updating inode->i_blocks
[XFS] Make xfs_ail_check check less by default
[XFS] Move AIL pushing into it's own thread
[XFS] use generic_permission
[XFS] stop re-checking permissions in xfs_swapext
[XFS] clean up xfs_swapext
[XFS] remove permission check from xfs_change_file_space
[XFS] prevent panic during log recovery due to bogus op_hdr length
[XFS] Cleanup various fid related bits:
[XFS] Fix xfs_lowbit64
[XFS] Remove CFORK macros and use code directly in IFORK and DFORK macros.
[XFS] kill superflous buffer locking (2nd attempt)
[XFS] Use kernel-supplied "roundup_pow_of_two" for simplicity
[XFS] Remove the BPCSHIFT and NB* based macros from XFS.
[XFS] Remove bogus assert
[XFS] optimize XFS_IS_REALTIME_INODE w/o realtime config
...
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_lrw.c')
-rw-r--r-- | fs/xfs/linux-2.6/xfs_lrw.c | 122 |
1 files changed, 46 insertions, 76 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c index 6f614f35f65..16635338849 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.c +++ b/fs/xfs/linux-2.6/xfs_lrw.c @@ -58,14 +58,12 @@ void xfs_rw_enter_trace( int tag, - xfs_iocore_t *io, + xfs_inode_t *ip, void *data, size_t segs, loff_t offset, int ioflags) { - xfs_inode_t *ip = XFS_IO_INODE(io); - if (ip->i_rwtrace == NULL) return; ktrace_enter(ip->i_rwtrace, @@ -78,8 +76,8 @@ xfs_rw_enter_trace( (void *)((unsigned long)((offset >> 32) & 0xffffffff)), (void *)((unsigned long)(offset & 0xffffffff)), (void *)((unsigned long)ioflags), - (void *)((unsigned long)((io->io_new_size >> 32) & 0xffffffff)), - (void *)((unsigned long)(io->io_new_size & 0xffffffff)), + (void *)((unsigned long)((ip->i_new_size >> 32) & 0xffffffff)), + (void *)((unsigned long)(ip->i_new_size & 0xffffffff)), (void *)((unsigned long)current_pid()), (void *)NULL, (void *)NULL, @@ -89,13 +87,12 @@ xfs_rw_enter_trace( void xfs_inval_cached_trace( - xfs_iocore_t *io, + xfs_inode_t *ip, xfs_off_t offset, xfs_off_t len, xfs_off_t first, xfs_off_t last) { - xfs_inode_t *ip = XFS_IO_INODE(io); if (ip->i_rwtrace == NULL) return; @@ -131,7 +128,7 @@ xfs_inval_cached_trace( */ STATIC int xfs_iozero( - struct inode *ip, /* inode */ + struct xfs_inode *ip, /* inode */ loff_t pos, /* offset in file */ size_t count) /* size of data to zero */ { @@ -139,7 +136,7 @@ xfs_iozero( struct address_space *mapping; int status; - mapping = ip->i_mapping; + mapping = ip->i_vnode->i_mapping; do { unsigned offset, bytes; void *fsdata; @@ -205,7 +202,7 @@ xfs_read( if (unlikely(ioflags & IO_ISDIRECT)) { xfs_buftarg_t *target = - (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) ? + XFS_IS_REALTIME_INODE(ip) ? mp->m_rtdev_targp : mp->m_ddev_targp; if ((*offset & target->bt_smask) || (size & target->bt_smask)) { @@ -246,9 +243,8 @@ xfs_read( if (unlikely(ioflags & IO_ISDIRECT)) { if (VN_CACHED(vp)) - ret = xfs_flushinval_pages(ip, - ctooff(offtoct(*offset)), - -1, FI_REMAPF_LOCKED); + ret = xfs_flushinval_pages(ip, (*offset & PAGE_CACHE_MASK), + -1, FI_REMAPF_LOCKED); mutex_unlock(&inode->i_mutex); if (ret) { xfs_iunlock(ip, XFS_IOLOCK_SHARED); @@ -256,7 +252,7 @@ xfs_read( } } - xfs_rw_enter_trace(XFS_READ_ENTER, &ip->i_iocore, + xfs_rw_enter_trace(XFS_READ_ENTER, ip, (void *)iovp, segs, *offset, ioflags); iocb->ki_pos = *offset; @@ -301,7 +297,7 @@ xfs_splice_read( return -error; } } - xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, &ip->i_iocore, + xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, ip, pipe, count, *ppos, ioflags); ret = generic_file_splice_read(infilp, ppos, pipe, count, flags); if (ret > 0) @@ -323,7 +319,6 @@ xfs_splice_write( { bhv_vnode_t *vp = XFS_ITOV(ip); xfs_mount_t *mp = ip->i_mount; - xfs_iocore_t *io = &ip->i_iocore; ssize_t ret; struct inode *inode = outfilp->f_mapping->host; xfs_fsize_t isize, new_size; @@ -350,10 +345,10 @@ xfs_splice_write( xfs_ilock(ip, XFS_ILOCK_EXCL); if (new_size > ip->i_size) - io->io_new_size = new_size; + ip->i_new_size = new_size; xfs_iunlock(ip, XFS_ILOCK_EXCL); - xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, &ip->i_iocore, + xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, ip, pipe, count, *ppos, ioflags); ret = generic_file_splice_write(pipe, outfilp, ppos, count, flags); if (ret > 0) @@ -370,9 +365,9 @@ xfs_splice_write( xfs_iunlock(ip, XFS_ILOCK_EXCL); } - if (io->io_new_size) { + if (ip->i_new_size) { xfs_ilock(ip, XFS_ILOCK_EXCL); - io->io_new_size = 0; + ip->i_new_size = 0; if (ip->i_d.di_size > ip->i_size) ip->i_d.di_size = ip->i_size; xfs_iunlock(ip, XFS_ILOCK_EXCL); @@ -389,20 +384,19 @@ xfs_splice_write( */ STATIC int /* error (positive) */ xfs_zero_last_block( - struct inode *ip, - xfs_iocore_t *io, + xfs_inode_t *ip, xfs_fsize_t offset, xfs_fsize_t isize) { xfs_fileoff_t last_fsb; - xfs_mount_t *mp = io->io_mount; + xfs_mount_t *mp = ip->i_mount; int nimaps; int zero_offset; int zero_len; int error = 0; xfs_bmbt_irec_t imap; - ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0); + ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE) != 0); zero_offset = XFS_B_FSB_OFFSET(mp, isize); if (zero_offset == 0) { @@ -415,7 +409,7 @@ xfs_zero_last_block( last_fsb = XFS_B_TO_FSBT(mp, isize); nimaps = 1; - error = XFS_BMAPI(mp, NULL, io, last_fsb, 1, 0, NULL, 0, &imap, + error = xfs_bmapi(NULL, ip, last_fsb, 1, 0, NULL, 0, &imap, &nimaps, NULL, NULL); if (error) { return error; @@ -433,14 +427,14 @@ xfs_zero_last_block( * out sync. We need to drop the ilock while we do this so we * don't deadlock when the buffer cache calls back to us. */ - XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD); + xfs_iunlock(ip, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD); zero_len = mp->m_sb.sb_blocksize - zero_offset; if (isize + zero_len > offset) zero_len = offset - isize; error = xfs_iozero(ip, isize, zero_len); - XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); + xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); ASSERT(error >= 0); return error; } @@ -458,35 +452,33 @@ xfs_zero_last_block( int /* error (positive) */ xfs_zero_eof( - bhv_vnode_t *vp, - xfs_iocore_t *io, + xfs_inode_t *ip, xfs_off_t offset, /* starting I/O offset */ xfs_fsize_t isize) /* current inode size */ { - struct inode *ip = vn_to_inode(vp); + xfs_mount_t *mp = ip->i_mount; xfs_fileoff_t start_zero_fsb; xfs_fileoff_t end_zero_fsb; xfs_fileoff_t zero_count_fsb; xfs_fileoff_t last_fsb; xfs_fileoff_t zero_off; xfs_fsize_t zero_len; - xfs_mount_t *mp = io->io_mount; int nimaps; int error = 0; xfs_bmbt_irec_t imap; - ASSERT(ismrlocked(io->io_lock, MR_UPDATE)); - ASSERT(ismrlocked(io->io_iolock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE)); ASSERT(offset > isize); /* * First handle zeroing the block on which isize resides. * We only zero a part of that block so it is handled specially. */ - error = xfs_zero_last_block(ip, io, offset, isize); + error = xfs_zero_last_block(ip, offset, isize); if (error) { - ASSERT(ismrlocked(io->io_lock, MR_UPDATE)); - ASSERT(ismrlocked(io->io_iolock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE)); return error; } @@ -514,11 +506,11 @@ xfs_zero_eof( while (start_zero_fsb <= end_zero_fsb) { nimaps = 1; zero_count_fsb = end_zero_fsb - start_zero_fsb + 1; - error = XFS_BMAPI(mp, NULL, io, start_zero_fsb, zero_count_fsb, + error = xfs_bmapi(NULL, ip, start_zero_fsb, zero_count_fsb, 0, NULL, 0, &imap, &nimaps, NULL, NULL); if (error) { - ASSERT(ismrlocked(io->io_lock, MR_UPDATE)); - ASSERT(ismrlocked(io->io_iolock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_lock, MR_UPDATE)); + ASSERT(ismrlocked(&ip->i_iolock, MR_UPDATE)); return error; } ASSERT(nimaps > 0); @@ -542,7 +534,7 @@ xfs_zero_eof( * Drop the inode lock while we're doing the I/O. * We'll still have the iolock to protect us. */ - XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); + xfs_iunlock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); zero_off = XFS_FSB_TO_B(mp, start_zero_fsb); zero_len = XFS_FSB_TO_B(mp, imap.br_blockcount); @@ -558,14 +550,13 @@ xfs_zero_eof( start_zero_fsb = imap.br_startoff + imap.br_blockcount; ASSERT(start_zero_fsb <= (end_zero_fsb + 1)); - XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); + xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); } return 0; out_lock: - - XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); + xfs_ilock(ip, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD); ASSERT(error >= 0); return error; } @@ -587,7 +578,6 @@ xfs_write( xfs_mount_t *mp; ssize_t ret = 0, error = 0; xfs_fsize_t isize, new_size; - xfs_iocore_t *io; int iolock; int eventsent = 0; bhv_vrwlock_t locktype; @@ -607,8 +597,7 @@ xfs_write( if (count == 0) return 0; - io = &xip->i_iocore; - mp = io->io_mount; + mp = xip->i_mount; xfs_wait_for_freeze(mp, SB_FREEZE_WRITE); @@ -667,7 +656,7 @@ start: if (ioflags & IO_ISDIRECT) { xfs_buftarg_t *target = - (xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ? + XFS_IS_REALTIME_INODE(xip) ? mp->m_rtdev_targp : mp->m_ddev_targp; if ((pos & target->bt_smask) || (count & target->bt_smask)) { @@ -688,7 +677,7 @@ start: new_size = pos + count; if (new_size > xip->i_size) - io->io_new_size = new_size; + xip->i_new_size = new_size; if (likely(!(ioflags & IO_INVIS))) { file_update_time(file); @@ -706,7 +695,7 @@ start: */ if (pos > xip->i_size) { - error = xfs_zero_eof(vp, io, pos, xip->i_size); + error = xfs_zero_eof(xip, pos, xip->i_size); if (error) { xfs_iunlock(xip, XFS_ILOCK_EXCL); goto out_unlock_internal; @@ -740,10 +729,10 @@ retry: if ((ioflags & IO_ISDIRECT)) { if (VN_CACHED(vp)) { WARN_ON(need_i_mutex == 0); - xfs_inval_cached_trace(io, pos, -1, - ctooff(offtoct(pos)), -1); + xfs_inval_cached_trace(xip, pos, -1, + (pos & PAGE_CACHE_MASK), -1); error = xfs_flushinval_pages(xip, - ctooff(offtoct(pos)), + (pos & PAGE_CACHE_MASK), -1, FI_REMAPF_LOCKED); if (error) goto out_unlock_internal; @@ -751,7 +740,7 @@ retry: if (need_i_mutex) { /* demote the lock now the cached pages are gone */ - XFS_ILOCK_DEMOTE(mp, io, XFS_IOLOCK_EXCL); + xfs_ilock_demote(xip, XFS_IOLOCK_EXCL); mutex_unlock(&inode->i_mutex); iolock = XFS_IOLOCK_SHARED; @@ -759,7 +748,7 @@ retry: need_i_mutex = 0; } - xfs_rw_enter_trace(XFS_DIOWR_ENTER, io, (void *)iovp, segs, + xfs_rw_enter_trace(XFS_DIOWR_ENTER, xip, (void *)iovp, segs, *offset, ioflags); ret = generic_file_direct_write(iocb, iovp, &segs, pos, offset, count, ocount); @@ -779,7 +768,7 @@ retry: goto relock; } } else { - xfs_rw_enter_trace(XFS_WRITE_ENTER, io, (void *)iovp, segs, + xfs_rw_enter_trace(XFS_WRITE_ENTER, xip, (void *)iovp, segs, *offset, ioflags); ret = generic_file_buffered_write(iocb, iovp, segs, pos, offset, count, ret); @@ -843,9 +832,9 @@ retry: } out_unlock_internal: - if (io->io_new_size) { + if (xip->i_new_size) { xfs_ilock(xip, XFS_ILOCK_EXCL); - io->io_new_size = 0; + xip->i_new_size = 0; /* * If this was a direct or synchronous I/O that failed (such * as ENOSPC) then part of the I/O may have been written to @@ -894,25 +883,6 @@ xfs_bdstrat_cb(struct xfs_buf *bp) } } - -int -xfs_bmap( - xfs_inode_t *ip, - xfs_off_t offset, - ssize_t count, - int flags, - xfs_iomap_t *iomapp, - int *niomaps) -{ - xfs_iocore_t *io = &ip->i_iocore; - - ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFREG); - ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) == - ((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0)); - - return xfs_iomap(io, offset, count, flags, iomapp, niomaps); -} - /* * Wrapper around bdstrat so that we can stop data * from going to disk in case we are shutting down the filesystem. |