diff options
Diffstat (limited to 'fs/cifs/cifs_debug.c')
| -rw-r--r-- | fs/cifs/cifs_debug.c | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 88a7958170ee..68e8e5b27841 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -17,15 +17,14 @@ #include "cifsproto.h" #include "cifs_debug.h" #include "cifsfs.h" +#include "fs_context.h" #ifdef CONFIG_CIFS_DFS_UPCALL #include "dfs_cache.h" #endif #ifdef CONFIG_CIFS_SMB_DIRECT #include "smbdirect.h" #endif -#ifdef CONFIG_CIFS_SWN_UPCALL #include "cifs_swn.h" -#endif void cifs_dump_mem(char *label, void *data, int length) @@ -118,10 +117,8 @@ static void cifs_debug_tcon(struct seq_file *m, struct cifs_tcon *tcon) seq_printf(m, " POSIX Extensions"); if (tcon->ses->server->ops->dump_share_caps) tcon->ses->server->ops->dump_share_caps(m, tcon); -#ifdef CONFIG_CIFS_SWN_UPCALL if (tcon->use_witness) seq_puts(m, " Witness"); -#endif if (tcon->need_reconnect) seq_puts(m, "\tDISCONNECTED "); @@ -490,10 +487,8 @@ skip_rdma: spin_unlock(&cifs_tcp_ses_lock); seq_putc(m, '\n'); - -#ifdef CONFIG_CIFS_SWN_UPCALL cifs_swn_dump(m); -#endif + /* BB add code to dump additional info such as TCP session info now */ return 0; } @@ -702,6 +697,7 @@ static const struct proc_ops cifs_lookup_cache_proc_ops; static const struct proc_ops traceSMB_proc_ops; static const struct proc_ops cifs_security_flags_proc_ops; static const struct proc_ops cifs_linux_ext_proc_ops; +static const struct proc_ops cifs_mount_params_proc_ops; void cifs_proc_init(void) @@ -726,6 +722,8 @@ cifs_proc_init(void) proc_create("LookupCacheEnabled", 0644, proc_fs_cifs, &cifs_lookup_cache_proc_ops); + proc_create("mount_params", 0444, proc_fs_cifs, &cifs_mount_params_proc_ops); + #ifdef CONFIG_CIFS_DFS_UPCALL proc_create("dfscache", 0644, proc_fs_cifs, &dfscache_proc_ops); #endif @@ -764,6 +762,7 @@ cifs_proc_clean(void) remove_proc_entry("SecurityFlags", proc_fs_cifs); remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); + remove_proc_entry("mount_params", proc_fs_cifs); #ifdef CONFIG_CIFS_DFS_UPCALL remove_proc_entry("dfscache", proc_fs_cifs); @@ -1023,6 +1022,51 @@ static const struct proc_ops cifs_security_flags_proc_ops = { .proc_release = single_release, .proc_write = cifs_security_flags_proc_write, }; + +/* To make it easier to debug, can help to show mount params */ +static int cifs_mount_params_proc_show(struct seq_file *m, void *v) +{ + const struct fs_parameter_spec *p; + const char *type; + + for (p = smb3_fs_parameters; p->name; p++) { + /* cannot use switch with pointers... */ + if (!p->type) { + if (p->flags == fs_param_neg_with_no) + type = "noflag"; + else + type = "flag"; + } else if (p->type == fs_param_is_bool) + type = "bool"; + else if (p->type == fs_param_is_u32) + type = "u32"; + else if (p->type == fs_param_is_u64) + type = "u64"; + else if (p->type == fs_param_is_string) + type = "string"; + else + type = "unknown"; + + seq_printf(m, "%s:%s\n", p->name, type); + } + + return 0; +} + +static int cifs_mount_params_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, cifs_mount_params_proc_show, NULL); +} + +static const struct proc_ops cifs_mount_params_proc_ops = { + .proc_open = cifs_mount_params_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + /* No need for write for now */ + /* .proc_write = cifs_mount_params_proc_write, */ +}; + #else inline void cifs_proc_init(void) { |