diff options
Diffstat (limited to 'kernel/fs/ext3/file.c')
| -rw-r--r-- | kernel/fs/ext3/file.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/kernel/fs/ext3/file.c b/kernel/fs/ext3/file.c new file mode 100644 index 000000000..3b8f650de --- /dev/null +++ b/kernel/fs/ext3/file.c @@ -0,0 +1,79 @@ +/* + * linux/fs/ext3/file.c + * + * Copyright (C) 1992, 1993, 1994, 1995 + * Remy Card (card@masi.ibp.fr) + * Laboratoire MASI - Institut Blaise Pascal + * Universite Pierre et Marie Curie (Paris VI) + * + * from + * + * linux/fs/minix/file.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * ext3 fs regular file handling primitives + * + * 64-bit file support on 64-bit platforms by Jakub Jelinek + * (jj@sunsite.ms.mff.cuni.cz) + */ + +#include <linux/quotaops.h> +#include "ext3.h" +#include "xattr.h" +#include "acl.h" + +/* + * Called when an inode is released. Note that this is different + * from ext3_file_open: open gets called at every open, but release + * gets called only when /all/ the files are closed. + */ +static int ext3_release_file (struct inode * inode, struct file * filp) +{ + if (ext3_test_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE)) { + filemap_flush(inode->i_mapping); + ext3_clear_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE); + } + /* if we are the last writer on the inode, drop the block reservation */ + if ((filp->f_mode & FMODE_WRITE) && + (atomic_read(&inode->i_writecount) == 1)) + { + mutex_lock(&EXT3_I(inode)->truncate_mutex); + ext3_discard_reservation(inode); + mutex_unlock(&EXT3_I(inode)->truncate_mutex); + } + if (is_dx(inode) && filp->private_data) + ext3_htree_free_dir_info(filp->private_data); + + return 0; +} + +const struct file_operations ext3_file_operations = { + .llseek = generic_file_llseek, + .read_iter = generic_file_read_iter, + .write_iter = generic_file_write_iter, + .unlocked_ioctl = ext3_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = ext3_compat_ioctl, +#endif + .mmap = generic_file_mmap, + .open = dquot_file_open, + .release = ext3_release_file, + .fsync = ext3_sync_file, + .splice_read = generic_file_splice_read, + .splice_write = iter_file_splice_write, +}; + +const struct inode_operations ext3_file_inode_operations = { + .setattr = ext3_setattr, +#ifdef CONFIG_EXT3_FS_XATTR + .setxattr = generic_setxattr, + .getxattr = generic_getxattr, + .listxattr = ext3_listxattr, + .removexattr = generic_removexattr, +#endif + .get_acl = ext3_get_acl, + .set_acl = ext3_set_acl, + .fiemap = ext3_fiemap, +}; + |