X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_file.c;h=e6035bd58294d1a03c50933ec113c46b0465d4aa;hb=d44603433d42a035594d1e5dd2e29ddf23660e05;hp=4c749ab543d0de17646993a282f925ebd0314ccf;hpb=448c3f6884700fc467669d4453b7f5983a5ba1cb;p=karo-tx-linux.git diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 4c749ab543d0..e6035bd58294 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -17,25 +17,27 @@ */ #include "xfs.h" #include "xfs_fs.h" -#include "xfs_log.h" +#include "xfs_shared.h" +#include "xfs_format.h" +#include "xfs_log_format.h" +#include "xfs_trans_resv.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_trans.h" #include "xfs_mount.h" -#include "xfs_bmap_btree.h" -#include "xfs_alloc.h" -#include "xfs_dinode.h" +#include "xfs_da_format.h" +#include "xfs_da_btree.h" #include "xfs_inode.h" +#include "xfs_trans.h" #include "xfs_inode_item.h" #include "xfs_bmap.h" #include "xfs_bmap_util.h" #include "xfs_error.h" -#include "xfs_da_btree.h" -#include "xfs_dir2_format.h" #include "xfs_dir2.h" #include "xfs_dir2_priv.h" #include "xfs_ioctl.h" #include "xfs_trace.h" +#include "xfs_log.h" +#include "xfs_dinode.h" #include #include @@ -227,10 +229,9 @@ xfs_file_fsync( } STATIC ssize_t -xfs_file_aio_read( +xfs_file_read_iter( struct kiocb *iocb, - const struct iovec *iovp, - unsigned long nr_segs, + struct iov_iter *iter, loff_t pos) { struct file *file = iocb->ki_filp; @@ -251,9 +252,7 @@ xfs_file_aio_read( if (file->f_mode & FMODE_NOCMTIME) ioflags |= IO_INVIS; - ret = generic_segment_checks(iovp, &nr_segs, &size, VERIFY_WRITE); - if (ret < 0) - return ret; + size = iov_iter_count(iter); if (unlikely(ioflags & IO_ISDIRECT)) { xfs_buftarg_t *target = @@ -306,7 +305,7 @@ xfs_file_aio_read( trace_xfs_file_read(ip, size, pos, ioflags); - ret = generic_file_aio_read(iocb, iovp, nr_segs, pos); + ret = generic_file_read_iter(iocb, iter, pos); if (ret > 0) XFS_STATS_ADD(xs_read_bytes, ret); @@ -622,10 +621,9 @@ restart: STATIC ssize_t xfs_file_dio_aio_write( struct kiocb *iocb, - const struct iovec *iovp, - unsigned long nr_segs, + struct iov_iter *iter, loff_t pos, - size_t ocount) + size_t count) { struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; @@ -633,7 +631,6 @@ xfs_file_dio_aio_write( struct xfs_inode *ip = XFS_I(inode); struct xfs_mount *mp = ip->i_mount; ssize_t ret = 0; - size_t count = ocount; int unaligned_io = 0; int iolock; struct xfs_buftarg *target = XFS_IS_REALTIME_INODE(ip) ? @@ -693,8 +690,8 @@ xfs_file_dio_aio_write( } trace_xfs_file_direct_write(ip, count, iocb->ki_pos, 0); - ret = generic_file_direct_write(iocb, iovp, - &nr_segs, pos, &iocb->ki_pos, count, ocount); + ret = generic_file_direct_write_iter(iocb, iter, + pos, &iocb->ki_pos, count); out: xfs_rw_iunlock(ip, iolock); @@ -707,10 +704,9 @@ out: STATIC ssize_t xfs_file_buffered_aio_write( struct kiocb *iocb, - const struct iovec *iovp, - unsigned long nr_segs, + struct iov_iter *iter, loff_t pos, - size_t ocount) + size_t count) { struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; @@ -719,7 +715,6 @@ xfs_file_buffered_aio_write( ssize_t ret; int enospc = 0; int iolock = XFS_IOLOCK_EXCL; - size_t count = ocount; xfs_rw_ilock(ip, iolock); @@ -732,7 +727,7 @@ xfs_file_buffered_aio_write( write_retry: trace_xfs_file_buffered_write(ip, count, iocb->ki_pos, 0); - ret = generic_file_buffered_write(iocb, iovp, nr_segs, + ret = generic_file_buffered_write_iter(iocb, iter, pos, &iocb->ki_pos, count, 0); /* @@ -753,10 +748,9 @@ out: } STATIC ssize_t -xfs_file_aio_write( +xfs_file_write_iter( struct kiocb *iocb, - const struct iovec *iovp, - unsigned long nr_segs, + struct iov_iter *iter, loff_t pos) { struct file *file = iocb->ki_filp; @@ -764,17 +758,15 @@ xfs_file_aio_write( struct inode *inode = mapping->host; struct xfs_inode *ip = XFS_I(inode); ssize_t ret; - size_t ocount = 0; + size_t count = 0; XFS_STATS_INC(xs_write_calls); BUG_ON(iocb->ki_pos != pos); - ret = generic_segment_checks(iovp, &nr_segs, &ocount, VERIFY_READ); - if (ret) - return ret; + count = iov_iter_count(iter); - if (ocount == 0) + if (count == 0) return 0; if (XFS_FORCED_SHUTDOWN(ip->i_mount)) { @@ -783,10 +775,9 @@ xfs_file_aio_write( } if (unlikely(file->f_flags & O_DIRECT)) - ret = xfs_file_dio_aio_write(iocb, iovp, nr_segs, pos, ocount); + ret = xfs_file_dio_aio_write(iocb, iter, pos, count); else - ret = xfs_file_buffered_aio_write(iocb, iovp, nr_segs, pos, - ocount); + ret = xfs_file_buffered_aio_write(iocb, iter, pos, count); if (ret > 0) { ssize_t err; @@ -805,44 +796,64 @@ out: STATIC long xfs_file_fallocate( - struct file *file, - int mode, - loff_t offset, - loff_t len) + struct file *file, + int mode, + loff_t offset, + loff_t len) { - struct inode *inode = file_inode(file); - long error; - loff_t new_size = 0; - xfs_flock64_t bf; - xfs_inode_t *ip = XFS_I(inode); - int cmd = XFS_IOC_RESVSP; - int attr_flags = XFS_ATTR_NOLOCK; + struct inode *inode = file_inode(file); + struct xfs_inode *ip = XFS_I(inode); + struct xfs_trans *tp; + long error; + loff_t new_size = 0; + if (!S_ISREG(inode->i_mode)) + return -EINVAL; if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) return -EOPNOTSUPP; - bf.l_whence = 0; - bf.l_start = offset; - bf.l_len = len; - xfs_ilock(ip, XFS_IOLOCK_EXCL); + if (mode & FALLOC_FL_PUNCH_HOLE) { + error = xfs_free_file_space(ip, offset, len); + if (error) + goto out_unlock; + } else { + if (!(mode & FALLOC_FL_KEEP_SIZE) && + offset + len > i_size_read(inode)) { + new_size = offset + len; + error = -inode_newsize_ok(inode, new_size); + if (error) + goto out_unlock; + } - if (mode & FALLOC_FL_PUNCH_HOLE) - cmd = XFS_IOC_UNRESVSP; - - /* check the new inode size is valid before allocating */ - if (!(mode & FALLOC_FL_KEEP_SIZE) && - offset + len > i_size_read(inode)) { - new_size = offset + len; - error = inode_newsize_ok(inode, new_size); + error = xfs_alloc_file_space(ip, offset, len, + XFS_BMAPI_PREALLOC); if (error) goto out_unlock; } - if (file->f_flags & O_DSYNC) - attr_flags |= XFS_ATTR_SYNC; + tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_WRITEID); + error = xfs_trans_reserve(tp, &M_RES(ip->i_mount)->tr_writeid, 0, 0); + if (error) { + xfs_trans_cancel(tp, 0); + goto out_unlock; + } + + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); + ip->i_d.di_mode &= ~S_ISUID; + if (ip->i_d.di_mode & S_IXGRP) + ip->i_d.di_mode &= ~S_ISGID; + + if (!(mode & FALLOC_FL_PUNCH_HOLE)) + ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC; - error = -xfs_change_file_space(ip, cmd, &bf, 0, attr_flags); + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + + if (file->f_flags & O_DSYNC) + xfs_trans_set_sync(tp); + error = xfs_trans_commit(tp, 0); if (error) goto out_unlock; @@ -852,12 +863,12 @@ xfs_file_fallocate( iattr.ia_valid = ATTR_SIZE; iattr.ia_size = new_size; - error = -xfs_setattr_size(ip, &iattr, XFS_ATTR_NOLOCK); + error = xfs_setattr_size(ip, &iattr); } out_unlock: xfs_iunlock(ip, XFS_IOLOCK_EXCL); - return error; + return -error; } @@ -1411,8 +1422,8 @@ const struct file_operations xfs_file_operations = { .llseek = xfs_file_llseek, .read = do_sync_read, .write = do_sync_write, - .aio_read = xfs_file_aio_read, - .aio_write = xfs_file_aio_write, + .read_iter = xfs_file_read_iter, + .write_iter = xfs_file_write_iter, .splice_read = xfs_file_splice_read, .splice_write = xfs_file_splice_write, .unlocked_ioctl = xfs_file_ioctl,