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author | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 14:45:25 -0500 |
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committer | Timothy Pearson <tpearson@raptorengineering.com> | 2017-08-23 14:45:25 -0500 |
commit | fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204 (patch) | |
tree | 22962a4387943edc841c72a4e636a068c66d58fd /fs/sysv/file.c | |
download | ast2050-linux-kernel-fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204.zip ast2050-linux-kernel-fcbb27b0ec6dcbc5a5108cb8fb19eae64593d204.tar.gz |
Initial import of modified Linux 2.6.28 tree
Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y
Diffstat (limited to 'fs/sysv/file.c')
-rw-r--r-- | fs/sysv/file.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/fs/sysv/file.c b/fs/sysv/file.c new file mode 100644 index 0000000..589be21 --- /dev/null +++ b/fs/sysv/file.c @@ -0,0 +1,51 @@ +/* + * 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 = sysv_sync_file, + .splice_read = generic_file_splice_read, +}; + +const struct inode_operations sysv_file_inode_operations = { + .truncate = sysv_truncate, + .getattr = sysv_getattr, +}; + +int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync) +{ + struct inode *inode = dentry->d_inode; + int err; + + err = sync_mapping_buffers(inode->i_mapping); + if (!(inode->i_state & I_DIRTY)) + return err; + if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) + return err; + + err |= sysv_sync_inode(inode); + return err ? -EIO : 0; +} |