diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ceph/file.c | 6 | ||||
-rw-r--r-- | fs/cifs/cifsacl.c | 30 | ||||
-rw-r--r-- | fs/cifs/cifsglob.h | 2 | ||||
-rw-r--r-- | fs/cifs/cifsproto.h | 3 | ||||
-rw-r--r-- | fs/cifs/cifssmb.c | 11 | ||||
-rw-r--r-- | fs/cifs/file.c | 2 | ||||
-rw-r--r-- | fs/cifs/inode.c | 3 | ||||
-rw-r--r-- | fs/cifs/smb2pdu.c | 21 | ||||
-rw-r--r-- | fs/cifs/transport.c | 4 | ||||
-rw-r--r-- | fs/cifs/xattr.c | 6 | ||||
-rw-r--r-- | fs/ext2/inode.c | 4 | ||||
-rw-r--r-- | fs/ext4/inode.c | 4 | ||||
-rw-r--r-- | fs/fuse/inode.c | 9 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 9 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 2 | ||||
-rw-r--r-- | fs/xfs/libxfs/xfs_refcount.c | 43 | ||||
-rw-r--r-- | fs/xfs/xfs_bmap_util.c | 10 | ||||
-rw-r--r-- | fs/xfs/xfs_file.c | 71 | ||||
-rw-r--r-- | fs/xfs/xfs_fsmap.c | 5 | ||||
-rw-r--r-- | fs/xfs/xfs_iomap.c | 4 |
20 files changed, 118 insertions, 131 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 3fdde0b283c9..29308a80d66f 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1671,8 +1671,12 @@ static long ceph_fallocate(struct file *file, int mode, } size = i_size_read(inode); - if (!(mode & FALLOC_FL_KEEP_SIZE)) + if (!(mode & FALLOC_FL_KEEP_SIZE)) { endoff = offset + length; + ret = inode_newsize_ok(inode, endoff); + if (ret) + goto unlock; + } if (fi->fmode & CEPH_FILE_MODE_LAZY) want = CEPH_CAP_FILE_BUFFER | CEPH_CAP_FILE_LAZYIO; diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index 15bac390dff9..b98436f5c7c7 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -1135,20 +1135,19 @@ cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, struct cifs_fattr *fattr, u32 acllen = 0; int rc = 0; struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); - struct cifs_tcon *tcon; + struct smb_version_operations *ops; cifs_dbg(NOISY, "converting ACL to mode for %s\n", path); if (IS_ERR(tlink)) return PTR_ERR(tlink); - tcon = tlink_tcon(tlink); - if (pfid && (tcon->ses->server->ops->get_acl_by_fid)) - pntsd = tcon->ses->server->ops->get_acl_by_fid(cifs_sb, pfid, - &acllen); - else if (tcon->ses->server->ops->get_acl) - pntsd = tcon->ses->server->ops->get_acl(cifs_sb, inode, path, - &acllen); + ops = tlink_tcon(tlink)->ses->server->ops; + + if (pfid && (ops->get_acl_by_fid)) + pntsd = ops->get_acl_by_fid(cifs_sb, pfid, &acllen); + else if (ops->get_acl) + pntsd = ops->get_acl(cifs_sb, inode, path, &acllen); else { cifs_put_tlink(tlink); return -EOPNOTSUPP; @@ -1181,23 +1180,23 @@ id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 nmode, struct cifs_ntsd *pnntsd = NULL; /* modified acl to be sent to server */ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct tcon_link *tlink = cifs_sb_tlink(cifs_sb); - struct cifs_tcon *tcon; + struct smb_version_operations *ops; if (IS_ERR(tlink)) return PTR_ERR(tlink); - tcon = tlink_tcon(tlink); + + ops = tlink_tcon(tlink)->ses->server->ops; cifs_dbg(NOISY, "set ACL from mode for %s\n", path); /* Get the security descriptor */ - if (tcon->ses->server->ops->get_acl == NULL) { + if (ops->get_acl == NULL) { cifs_put_tlink(tlink); return -EOPNOTSUPP; } - pntsd = tcon->ses->server->ops->get_acl(cifs_sb, inode, path, - &secdesclen); + pntsd = ops->get_acl(cifs_sb, inode, path, &secdesclen); if (IS_ERR(pntsd)) { rc = PTR_ERR(pntsd); cifs_dbg(VFS, "%s: error %d getting sec desc\n", __func__, rc); @@ -1224,13 +1223,12 @@ id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64 nmode, cifs_dbg(NOISY, "build_sec_desc rc: %d\n", rc); - if (tcon->ses->server->ops->set_acl == NULL) + if (ops->set_acl == NULL) rc = -EOPNOTSUPP; if (!rc) { /* Set the security descriptor */ - rc = tcon->ses->server->ops->set_acl(pnntsd, secdesclen, inode, - path, aclflag); + rc = ops->set_acl(pnntsd, secdesclen, inode, path, aclflag); cifs_dbg(NOISY, "set_cifs_acl rc: %d\n", rc); } cifs_put_tlink(tlink); diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 8be55be70faf..bcc7d9acad64 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -418,7 +418,7 @@ struct smb_version_operations { int (*validate_negotiate)(const unsigned int, struct cifs_tcon *); ssize_t (*query_all_EAs)(const unsigned int, struct cifs_tcon *, const unsigned char *, const unsigned char *, char *, - size_t, const struct nls_table *, int); + size_t, struct cifs_sb_info *); int (*set_EA)(const unsigned int, struct cifs_tcon *, const char *, const char *, const void *, const __u16, const struct nls_table *, int); diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index e49958c3f8bb..6eb3147132e3 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -480,8 +480,7 @@ extern int CIFSSMBCopy(unsigned int xid, extern ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon, const unsigned char *searchName, const unsigned char *ea_name, char *EAData, - size_t bufsize, const struct nls_table *nls_codepage, - int remap_special_chars); + size_t bufsize, struct cifs_sb_info *cifs_sb); extern int CIFSSMBSetEA(const unsigned int xid, struct cifs_tcon *tcon, const char *fileName, const char *ea_name, const void *ea_value, const __u16 ea_value_len, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 4c01b3f9abf0..fbb0d4cbda41 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -697,9 +697,7 @@ cifs_echo_callback(struct mid_q_entry *mid) { struct TCP_Server_Info *server = mid->callback_data; - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(server, 1, CIFS_ECHO_OP); } @@ -1599,9 +1597,7 @@ cifs_readv_callback(struct mid_q_entry *mid) } queue_work(cifsiod_wq, &rdata->work); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(server, 1, 0); } @@ -2058,7 +2054,6 @@ cifs_writev_callback(struct mid_q_entry *mid) { struct cifs_writedata *wdata = mid->callback_data; struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink); - struct TCP_Server_Info *server = tcon->ses->server; unsigned int written; WRITE_RSP *smb = (WRITE_RSP *)mid->resp_buf; @@ -2095,9 +2090,7 @@ cifs_writev_callback(struct mid_q_entry *mid) } queue_work(cifsiod_wq, &wdata->work); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(tcon->ses->server, 1, 0); } @@ -6076,11 +6069,13 @@ ssize_t CIFSSMBQAllEAs(const unsigned int xid, struct cifs_tcon *tcon, const unsigned char *searchName, const unsigned char *ea_name, char *EAData, size_t buf_size, - const struct nls_table *nls_codepage, int remap) + struct cifs_sb_info *cifs_sb) { /* BB assumes one setup word */ TRANSACTION2_QPI_REQ *pSMB = NULL; TRANSACTION2_QPI_RSP *pSMBr = NULL; + int remap = cifs_remap(cifs_sb); + struct nls_table *nls_codepage = cifs_sb->local_nls; int rc = 0; int bytes_returned; int list_len; diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 6ef78ad838e6..0fd081bd2a2f 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -582,7 +582,7 @@ cifs_relock_file(struct cifsFileInfo *cfile) struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); int rc = 0; - down_read(&cinode->lock_sem); + down_read_nested(&cinode->lock_sem, SINGLE_DEPTH_NESTING); if (cinode->can_cache_brlcks) { /* can cache locks - no need to relock */ up_read(&cinode->lock_sem); diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index c3b2fa0b2ec8..4d1fcd76d022 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -563,8 +563,7 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path, rc = tcon->ses->server->ops->query_all_EAs(xid, tcon, path, "SETFILEBITS", ea_value, 4 /* size of buf */, - cifs_sb->local_nls, - cifs_remap(cifs_sb)); + cifs_sb); cifs_put_tlink(tlink); if (rc < 0) return (int)rc; diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 48ff7703b919..e4afdaae743f 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1240,15 +1240,19 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, goto tcon_exit; } - if (rsp->ShareType & SMB2_SHARE_TYPE_DISK) + switch (rsp->ShareType) { + case SMB2_SHARE_TYPE_DISK: cifs_dbg(FYI, "connection to disk share\n"); - else if (rsp->ShareType & SMB2_SHARE_TYPE_PIPE) { + break; + case SMB2_SHARE_TYPE_PIPE: tcon->ipc = true; cifs_dbg(FYI, "connection to pipe share\n"); - } else if (rsp->ShareType & SMB2_SHARE_TYPE_PRINT) { - tcon->print = true; + break; + case SMB2_SHARE_TYPE_PRINT: + tcon->ipc = true; cifs_dbg(FYI, "connection to printer\n"); - } else { + break; + default: cifs_dbg(VFS, "unknown share type %d\n", rsp->ShareType); rc = -EOPNOTSUPP; goto tcon_error_exit; @@ -2173,9 +2177,7 @@ smb2_echo_callback(struct mid_q_entry *mid) if (mid->mid_state == MID_RESPONSE_RECEIVED) credits_received = le16_to_cpu(rsp->hdr.sync_hdr.CreditRequest); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(server, credits_received, CIFS_ECHO_OP); } @@ -2433,9 +2435,7 @@ smb2_readv_callback(struct mid_q_entry *mid) cifs_stats_fail_inc(tcon, SMB2_READ_HE); queue_work(cifsiod_wq, &rdata->work); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(server, credits_received, 0); } @@ -2594,7 +2594,6 @@ smb2_writev_callback(struct mid_q_entry *mid) { struct cifs_writedata *wdata = mid->callback_data; struct cifs_tcon *tcon = tlink_tcon(wdata->cfile->tlink); - struct TCP_Server_Info *server = tcon->ses->server; unsigned int written; struct smb2_write_rsp *rsp = (struct smb2_write_rsp *)mid->resp_buf; unsigned int credits_received = 1; @@ -2634,9 +2633,7 @@ smb2_writev_callback(struct mid_q_entry *mid) cifs_stats_fail_inc(tcon, SMB2_WRITE_HE); queue_work(cifsiod_wq, &wdata->work); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); add_credits(tcon->ses->server, credits_received, 0); } diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 4d64b5b8fc9c..47a125ece11e 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -94,7 +94,7 @@ DeleteMidQEntry(struct mid_q_entry *midEntry) now = jiffies; /* commands taking longer than one second are indications that something is wrong, unless it is quite a slow link or server */ - if ((now - midEntry->when_alloc) > HZ) { + if (time_after(now, midEntry->when_alloc + HZ)) { if ((cifsFYI & CIFS_TIMER) && (midEntry->command != command)) { pr_debug(" CIFS slow rsp: cmd %d mid %llu", midEntry->command, midEntry->mid); @@ -613,9 +613,7 @@ cifs_sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server) } spin_unlock(&GlobalMid_Lock); - mutex_lock(&server->srv_mutex); DeleteMidQEntry(mid); - mutex_unlock(&server->srv_mutex); return rc; } diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 20af5187ba63..3cb5c9e2d4e7 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -235,8 +235,7 @@ static int cifs_xattr_get(const struct xattr_handler *handler, if (pTcon->ses->server->ops->query_all_EAs) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon, - full_path, name, value, size, - cifs_sb->local_nls, cifs_remap(cifs_sb)); + full_path, name, value, size, cifs_sb); break; case XATTR_CIFS_ACL: { @@ -336,8 +335,7 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) if (pTcon->ses->server->ops->query_all_EAs) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon, - full_path, NULL, data, buf_size, - cifs_sb->local_nls, cifs_remap(cifs_sb)); + full_path, NULL, data, buf_size, cifs_sb); list_ea_exit: kfree(full_path); free_xid(xid); diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 26d77f9f8c12..2dcbd5698884 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -817,7 +817,7 @@ static int ext2_iomap_begin(struct inode *inode, loff_t offset, loff_t length, iomap->bdev = bdev; iomap->offset = (u64)first_block << blkbits; if (blk_queue_dax(bdev->bd_queue)) - iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name); + iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name); else iomap->dax_dev = NULL; @@ -841,7 +841,7 @@ static int ext2_iomap_end(struct inode *inode, loff_t offset, loff_t length, ssize_t written, unsigned flags, struct iomap *iomap) { - put_dax(iomap->dax_dev); + fs_put_dax(iomap->dax_dev); if (iomap->type == IOMAP_MAPPED && written < length && (flags & IOMAP_WRITE)) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 5834c4d76be8..1bd0bfa547f6 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3412,7 +3412,7 @@ retry: bdev = inode->i_sb->s_bdev; iomap->bdev = bdev; if (blk_queue_dax(bdev->bd_queue)) - iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name); + iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name); else iomap->dax_dev = NULL; iomap->offset = first_block << blkbits; @@ -3447,7 +3447,7 @@ static int ext4_iomap_end(struct inode *inode, loff_t offset, loff_t length, int blkbits = inode->i_blkbits; bool truncate = false; - put_dax(iomap->dax_dev); + fs_put_dax(iomap->dax_dev); if (!(flags & IOMAP_WRITE) || (flags & IOMAP_FAULT)) return 0; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 5a1b58f8fef4..65c88379a3a1 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -975,8 +975,15 @@ static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb) int err; char *suffix = ""; - if (sb->s_bdev) + if (sb->s_bdev) { suffix = "-fuseblk"; + /* + * sb->s_bdi points to blkdev's bdi however we want to redirect + * it to our private bdi... + */ + bdi_put(sb->s_bdi); + sb->s_bdi = &noop_backing_dev_info; + } err = super_setup_bdi_name(sb, "%u:%u%s", MAJOR(fc->dev), MINOR(fc->dev), suffix); if (err) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index f02eb7673392..a7048eafa8e6 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1280,7 +1280,6 @@ xfs_bmap_read_extents( xfs_bmbt_rec_t *frp; xfs_fsblock_t nextbno; xfs_extnum_t num_recs; - xfs_extnum_t start; num_recs = xfs_btree_get_numrecs(block); if (unlikely(i + num_recs > room)) { @@ -1303,7 +1302,6 @@ xfs_bmap_read_extents( * Copy records into the extent records. */ frp = XFS_BMBT_REC_ADDR(mp, block, 1); - start = i; for (j = 0; j < num_recs; j++, i++, frp++) { xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i); trp->l0 = be64_to_cpu(frp->l0); @@ -2065,8 +2063,10 @@ xfs_bmap_add_extent_delay_real( } temp = xfs_bmap_worst_indlen(bma->ip, temp); temp2 = xfs_bmap_worst_indlen(bma->ip, temp2); - diff = (int)(temp + temp2 - startblockval(PREV.br_startblock) - - (bma->cur ? bma->cur->bc_private.b.allocated : 0)); + diff = (int)(temp + temp2 - + (startblockval(PREV.br_startblock) - + (bma->cur ? + bma->cur->bc_private.b.allocated : 0))); if (diff > 0) { error = xfs_mod_fdblocks(bma->ip->i_mount, -((int64_t)diff), false); @@ -2123,7 +2123,6 @@ xfs_bmap_add_extent_delay_real( temp = da_new; if (bma->cur) temp += bma->cur->bc_private.b.allocated; - ASSERT(temp <= da_old); if (temp < da_old) xfs_mod_fdblocks(bma->ip->i_mount, (int64_t)(da_old - temp), false); diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 5392674bf893..3a673ba201aa 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -4395,7 +4395,7 @@ xfs_btree_visit_blocks( xfs_btree_readahead_ptr(cur, ptr, 1); /* save for the next iteration of the loop */ - lptr = *ptr; + xfs_btree_copy_ptrs(cur, &lptr, ptr, 1); } /* for each buffer in the level */ diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c index b177ef33cd4c..82a38d86ebad 100644 --- a/fs/xfs/libxfs/xfs_refcount.c +++ b/fs/xfs/libxfs/xfs_refcount.c @@ -1629,13 +1629,28 @@ xfs_refcount_recover_cow_leftovers( if (mp->m_sb.sb_agblocks >= XFS_REFC_COW_START) return -EOPNOTSUPP; - error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp); + INIT_LIST_HEAD(&debris); + + /* + * In this first part, we use an empty transaction to gather up + * all the leftover CoW extents so that we can subsequently + * delete them. The empty transaction is used to avoid + * a buffer lock deadlock if there happens to be a loop in the + * refcountbt because we're allowed to re-grab a buffer that is + * already attached to our transaction. When we're done + * recording the CoW debris we cancel the (empty) transaction + * and everything goes away cleanly. + */ + error = xfs_trans_alloc_empty(mp, &tp); if (error) return error; - cur = xfs_refcountbt_init_cursor(mp, NULL, agbp, agno, NULL); + + error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp); + if (error) + goto out_trans; + cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL); /* Find all the leftover CoW staging extents. */ - INIT_LIST_HEAD(&debris); memset(&low, 0, sizeof(low)); memset(&high, 0, sizeof(high)); low.rc.rc_startblock = XFS_REFC_COW_START; @@ -1645,10 +1660,11 @@ xfs_refcount_recover_cow_leftovers( if (error) goto out_cursor; xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); - xfs_buf_relse(agbp); + xfs_trans_brelse(tp, agbp); + xfs_trans_cancel(tp); /* Now iterate the list to free the leftovers */ - list_for_each_entry(rr, &debris, rr_list) { + list_for_each_entry_safe(rr, n, &debris, rr_list) { /* Set up transaction. */ error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, 0, 0, 0, &tp); if (error) @@ -1676,8 +1692,16 @@ xfs_refcount_recover_cow_leftovers( error = xfs_trans_commit(tp); if (error) goto out_free; + + list_del(&rr->rr_list); + kmem_free(rr); } + return error; +out_defer: + xfs_defer_cancel(&dfops); +out_trans: + xfs_trans_cancel(tp); out_free: /* Free the leftover list */ list_for_each_entry_safe(rr, n, &debris, rr_list) { @@ -1688,11 +1712,6 @@ out_free: out_cursor: xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); - xfs_buf_relse(agbp); - goto out_free; - -out_defer: - xfs_defer_cancel(&dfops); - xfs_trans_cancel(tp); - goto out_free; + xfs_trans_brelse(tp, agbp); + goto out_trans; } diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 2b954308a1d6..9e3cc2146d5b 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -582,9 +582,13 @@ xfs_getbmap( } break; default: + /* Local format data forks report no extents. */ + if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) { + bmv->bmv_entries = 0; + return 0; + } if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS && - ip->i_d.di_format != XFS_DINODE_FMT_BTREE && - ip->i_d.di_format != XFS_DINODE_FMT_LOCAL) + ip->i_d.di_format != XFS_DINODE_FMT_BTREE) return -EINVAL; if (xfs_get_extsz_hint(ip) || @@ -712,7 +716,7 @@ xfs_getbmap( * extents. */ if (map[i].br_startblock == DELAYSTARTBLOCK && - map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip))) + map[i].br_startoff < XFS_B_TO_FSB(mp, XFS_ISIZE(ip))) ASSERT((iflags & BMV_IF_DELALLOC) != 0); if (map[i].br_startblock == HOLESTARTBLOCK && diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 35703a801372..5fb5a0958a14 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1043,49 +1043,17 @@ xfs_find_get_desired_pgoff( index = startoff >> PAGE_SHIFT; endoff = XFS_FSB_TO_B(mp, map->br_startoff + map->br_blockcount); - end = endoff >> PAGE_SHIFT; + end = (endoff - 1) >> PAGE_SHIFT; do { int want; unsigned nr_pages; unsigned int i; - want = min_t(pgoff_t, end - index, PAGEVEC_SIZE); + want = min_t(pgoff_t, end - index, PAGEVEC_SIZE - 1) + 1; nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index, want); - /* - * No page mapped into given range. If we are searching holes - * and if this is the first time we got into the loop, it means - * that the given offset is landed in a hole, return it. - * - * If we have already stepped through some block buffers to find - * holes but they all contains data. In this case, the last - * offset is already updated and pointed to the end of the last - * mapped page, if it does not reach the endpoint to search, - * that means there should be a hole between them. - */ - if (nr_pages == 0) { - /* Data search found nothing */ - if (type == DATA_OFF) - break; - - ASSERT(type == HOLE_OFF); - if (lastoff == startoff || lastoff < endoff) { - found = true; - *offset = lastoff; - } - break; - } - - /* - * At lease we found one page. If this is the first time we - * step into the loop, and if the first page index offset is - * greater than the given search offset, a hole was found. - */ - if (type == HOLE_OFF && lastoff == startoff && - lastoff < page_offset(pvec.pages[0])) { - found = true; + if (nr_pages == 0) break; - } for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; @@ -1098,18 +1066,18 @@ xfs_find_get_desired_pgoff( * file mapping. However, page->index will not change * because we have a reference on the page. * - * Searching done if the page index is out of range. - * If the current offset is not reaches the end of - * the specified search range, there should be a hole - * between them. + * If current page offset is beyond where we've ended, + * we've found a hole. */ - if (page->index > end) { - if (type == HOLE_OFF && lastoff < endoff) { - *offset = lastoff; - found = true; - } + if (type == HOLE_OFF && lastoff < endoff && + lastoff < page_offset(pvec.pages[i])) { + found = true; + *offset = lastoff; goto out; } + /* Searching done if the page index is out of range. */ + if (page->index > end) + goto out; lock_page(page); /* @@ -1151,21 +1119,20 @@ xfs_find_get_desired_pgoff( /* * The number of returned pages less than our desired, search - * done. In this case, nothing was found for searching data, - * but we found a hole behind the last offset. + * done. */ - if (nr_pages < want) { - if (type == HOLE_OFF) { - *offset = lastoff; - found = true; - } + if (nr_pages < want) break; - } index = pvec.pages[i - 1]->index + 1; pagevec_release(&pvec); } while (index <= end); + /* No page at lastoff and we are not done - we found a hole. */ + if (type == HOLE_OFF && lastoff < endoff) { + *offset = lastoff; + found = true; + } out: pagevec_release(&pvec); return found; diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c index 3683819887a5..814ed729881d 100644 --- a/fs/xfs/xfs_fsmap.c +++ b/fs/xfs/xfs_fsmap.c @@ -828,6 +828,7 @@ xfs_getfsmap( struct xfs_fsmap dkeys[2]; /* per-dev keys */ struct xfs_getfsmap_dev handlers[XFS_GETFSMAP_DEVS]; struct xfs_getfsmap_info info = { NULL }; + bool use_rmap; int i; int error = 0; @@ -837,12 +838,14 @@ xfs_getfsmap( !xfs_getfsmap_is_valid_device(mp, &head->fmh_keys[1])) return -EINVAL; + use_rmap = capable(CAP_SYS_ADMIN) && + xfs_sb_version_hasrmapbt(&mp->m_sb); head->fmh_entries = 0; /* Set up our device handlers. */ memset(handlers, 0, sizeof(handlers)); handlers[0].dev = new_encode_dev(mp->m_ddev_targp->bt_dev); - if (xfs_sb_version_hasrmapbt(&mp->m_sb)) + if (use_rmap) handlers[0].fn = xfs_getfsmap_datadev_rmapbt; else handlers[0].fn = xfs_getfsmap_datadev_bnobt; diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index a63f61c256bd..94e5bdf7304c 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1068,7 +1068,7 @@ xfs_file_iomap_begin( /* optionally associate a dax device with the iomap bdev */ bdev = iomap->bdev; if (blk_queue_dax(bdev->bd_queue)) - iomap->dax_dev = dax_get_by_host(bdev->bd_disk->disk_name); + iomap->dax_dev = fs_dax_get_by_host(bdev->bd_disk->disk_name); else iomap->dax_dev = NULL; @@ -1149,7 +1149,7 @@ xfs_file_iomap_end( unsigned flags, struct iomap *iomap) { - put_dax(iomap->dax_dev); + fs_put_dax(iomap->dax_dev); if ((flags & IOMAP_WRITE) && iomap->type == IOMAP_DELALLOC) return xfs_file_iomap_end_delalloc(XFS_I(inode), offset, length, written, iomap); |