/* * Copyright (C) International Business Machines Corp., 2000-2002 * Portions Copyright (C) Christoph Hellwig, 2001-2002 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include "jfs_incore.h" #include "jfs_inode.h" #include "jfs_dmap.h" #include "jfs_txnmgr.h" #include "jfs_xattr.h" #include "jfs_acl.h" #include "jfs_debug.h" int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync) { struct inode *inode = file->f_mapping->host; int rc = 0; rc = filemap_write_and_wait_range(inode->i_mapping, start, end); if (rc) return rc; inode_lock(inode); if (!(inode->i_state & I_DIRTY_ALL) || (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) { /* Make sure committed changes hit the disk */ jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1); inode_unlock(inode); return rc; } rc |= jfs_commit_inode(inode, 1); inode_unlock(inode); return rc ? -EIO : 0; } static int jfs_open(struct inode *inode, struct file *file) { int rc; if ((rc = dquot_file_open(inode, file))) return rc; /* * We attempt to allow only one "active" file open per aggregate * group. Otherwise, appending to files in parallel can cause * fragmentation within the files. * * If the file is empty, it was probably just created and going * to be written to. If it has a size, we'll hold off until the * file is actually grown. */ if (S_ISREG(inode->i_mode) && file->f_mode & FMODE_WRITE && (inode->i_size == 0)) { struct jfs_inode_info *ji = JFS_IP(inode); spin_lock_irq(&ji->ag_lock); if (ji->active_ag == -1) { struct jfs_sb_info *jfs_sb = JFS_SBI(inode->i_sb); ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb); atomic_inc(&jfs_sb->bmap->db_active[ji->active_ag]); } spin_unlock_irq(&ji->ag_lock); } return 0; } static int jfs_release(struct inode *inode, struct file *file) { struct jfs_inode_info *ji = JFS_IP(inode); spin_lock_irq(&ji->ag_lock); if (ji->active_ag != -1) { struct bmap *bmap = JFS_SBI(inode->i_sb)->bmap; atomic_dec(&bmap->db_active[ji->active_ag]); ji->active_ag = -1; } spin_unlock_irq(&ji->ag_lock); return 0; } int jfs_setattr(struct dentry *dentry, struct iattr *iattr) { struct inode *inode = d_inode(dentry); int rc; rc = setattr_prepare(dentry, iattr); if (rc) return rc; if (is_quota_modification(inode, iattr)) { rc = dquot_initialize(inode); if (rc) return rc; } if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) || (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) { rc = dquot_transfer(inode, iattr); if (rc) return rc; } if ((iattr->ia_valid & ATTR_SIZE) && iattr->ia_size != i_size_read(inode)) { inode_dio_wait(inode); rc = inode_newsize_ok(inode, iattr->ia_size); if (rc) return rc; truncate_setsize(inode, iattr->ia_size); jfs_truncate(inode); } setattr_copy(inode, iattr); mark_inode_dirty(inode); if (iattr->ia_valid & ATTR_MODE) rc = posix_acl_chmod(inode, inode->i_mode); return rc; } const struct inode_operations jfs_file_inode_operations = { .listxattr = jfs_listxattr, .setattr = jfs_setattr, #ifdef CONFIG_JFS_POSIX_ACL .get_acl = jfs_get_acl, .set_acl = jfs_set_acl, #endif }; const struct file_operations jfs_file_operations = { .open = jfs_open, .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .mmap = generic_file_mmap, .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .fsync = jfs_fsync, .release = jfs_release, .unlocked_ioctl = jfs_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = jfs_compat_ioctl, #endif }; n value='1'>ssdiff
authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-06 14:16:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-06 14:16:23 -0800
commit396bf4cd835e62d70fad4a03a8963e61f19021f2 (patch)
tree79ac8f33554260fea1a8d43e6f8c4c5460115f45 /net/dccp/ccids/ccid2.c
parentd5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff)
parent7c2cf1c4615cc2f576d0604406cdf0065f00b83b (diff)
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - use-after-free in algif_aead - modular aesni regression when pcbc is modular but absent - bug causing IO page faults in ccp - double list add in ccp - NULL pointer dereference in qat (two patches) - panic in chcr - NULL pointer dereference in chcr - out-of-bound access in chcr * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: chcr - Fix key length for RFC4106 crypto: algif_aead - Fix kernel panic on list_del crypto: aesni - Fix failure when pcbc module is absent crypto: ccp - Fix double add when creating new DMA command crypto: ccp - Fix DMA operations when IOMMU is enabled crypto: chcr - Check device is allocated before use crypto: chcr - Fix panic on dma_unmap_sg crypto: qat - zero esram only for DH85x devices crypto: qat - fix bar discovery for c62x
Diffstat (limited to 'net/dccp/ccids/ccid2.c')