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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /fs/sysv/file.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'fs/sysv/file.c')
-rw-r--r-- | fs/sysv/file.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/fs/sysv/file.c b/fs/sysv/file.c new file mode 100644 index 00000000..0a659395 --- /dev/null +++ b/fs/sysv/file.c @@ -0,0 +1,58 @@ +/* + * linux/fs/sysv/file.c + * + * minix/file.c + * Copyright (C) 1991, 1992 Linus Torvalds + * + * coh/file.c + * Copyright (C) 1993 Pascal Haible, Bruno Haible + * + * sysv/file.c + * Copyright (C) 1993 Bruno Haible + * + * SystemV/Coherent regular file handling primitives + */ + +#include "sysv.h" + +/* + * We have mostly NULLs here: the current defaults are OK for + * the coh filesystem. + */ +const struct file_operations sysv_file_operations = { + .llseek = generic_file_llseek, + .read = do_sync_read, + .aio_read = generic_file_aio_read, + .write = do_sync_write, + .aio_write = generic_file_aio_write, + .mmap = generic_file_mmap, + .fsync = generic_file_fsync, + .splice_read = generic_file_splice_read, +}; + +static int sysv_setattr(struct dentry *dentry, struct iattr *attr) +{ + struct inode *inode = dentry->d_inode; + int error; + + error = inode_change_ok(inode, attr); + if (error) + return error; + + if ((attr->ia_valid & ATTR_SIZE) && + attr->ia_size != i_size_read(inode)) { + error = vmtruncate(inode, attr->ia_size); + if (error) + return error; + } + + setattr_copy(inode, attr); + mark_inode_dirty(inode); + return 0; +} + +const struct inode_operations sysv_file_inode_operations = { + .truncate = sysv_truncate, + .setattr = sysv_setattr, + .getattr = sysv_getattr, +}; |